{"product_id":"eight-thermocouples-daq-stackable-hat-raspberry-pi","title":"Eight Thermocouples DAQ 8-Layer Stackable HAT for Raspberry Pi","description":"\u003ch4 style=\"margin-top: -10px; margin-bottom: 6px;\"\u003eOverview\u003c\/h4\u003e\n\u003cp style=\"margin-top: 0;\"\u003eCompact, stackable temperature data acquisition HAT for Raspberry Pi. Monitors up to eight thermocouple channels per card — 64 when stacked — using high-resolution 24-bit delta-sigma ADCs with automatic cold-junction compensation. Supports J, K, T, N, E, B, R, and S thermocouple types. Includes RS485\/MODBUS RTU interface, hardware watchdog, and onboard 5V supply for the Raspberry Pi.\u003c\/p\u003e\n\u003cul style=\"padding-left: 16px; margin-left: 0; list-style-position: outside;\"\u003e\n\u003cli\u003eEight thermocouple inputs with automatic cold-junction compensation\u003c\/li\u003e\n\u003cli\u003eSupports J, K, T, N, E, B, R, and S thermocouple types\u003c\/li\u003e\n\u003cli\u003e24-bit delta-sigma ADC — ±1% factory accuracy, ±0.01% after calibration\u003c\/li\u003e\n\u003cli\u003eRS485\/MODBUS RTU — operates standalone or under Raspberry Pi control\u003c\/li\u003e\n\u003cli\u003eUp to 8 cards stackable for 64-channel monitoring\u003c\/li\u003e\n\u003cli\u003eUses only I²C — all remaining GPIO pins stay free\u003c\/li\u003e\n\u003cli\u003eECCN classification EAR99 — freely exportable under U.S. regulations\u003c\/li\u003e\n\u003cli\u003eAmbient operating temperature: -40°C to 85°C\u003c\/li\u003e\n\u003cli\u003eCE Certified to comply with EU regulatory requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"margin-bottom: 6px;\"\u003eWorks with Open Automation Software\u003c\/h4\u003e\n\u003cp style=\"margin-top: 0;\"\u003eCompatible with widely used tools for control, monitoring, and system integration.\u003c\/p\u003e\n\u003cdiv style=\"margin-top: 0px;\"\u003e\n\u003ctable style=\"width: auto; border-collapse: collapse; border: 0px solid #000;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 0px solid rgb(0, 0, 0); text-align: center;\"\u003e\u003ca href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\" title=\"Command Line for Sequent Microsystems Eight Thermocouples DAQ HAT\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/Command-line-144.jpg?v=1773882822\" alt=\"Command Line\" style=\"height: 72px; width: auto;\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 0px solid rgb(0, 0, 0); text-align: center;\"\u003e\u003ca href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/blob\/main\/python\/README.md\" title=\"Python Library for Sequent Microsystems Eight Thermocouples DAQ HAT\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/Python-144.jpg?v=1773882822\" alt=\"Python\" style=\"height: 72px; width: auto;\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 0px solid rgb(0, 0, 0); text-align: center;\"\u003e\u003ca href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/tree\/main\/Node-RED\" title=\"Node-RED nodes for Sequent Microsystems Eight Thermocouples DAQ HAT\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/Node-red-144.jpg?v=1773882822\" alt=\"Node-RED\" style=\"height: 72px; width: auto;\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 0px solid rgb(0, 0, 0); text-align: center;\"\u003e\u003ca href=\"https:\/\/github.com\/SequentMicrosystems\/SM_CODESYS\/tree\/main\/Thermocouple%20DAQ\" title=\"CODESYS Library for Eight Thermocouples DAQ HAT\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/Codesys-144.jpg?v=1773882822\" alt=\"CODESYS\" style=\"height: 72px; width: auto;\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 0px solid rgb(0, 0, 0); text-align: center;\"\u003e\u003ca href=\"https:\/\/autonomylogic.com\/\" title=\"OpenPLC website, software can be used directly with Sequent Microsystems Eight Thermocouples DAQ HAT\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/Open-PLC4..jpg?v=1773903057\" alt=\"Open PLC\" style=\"height: 72px; width: auto;\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 0px solid rgb(0, 0, 0); text-align: center;\"\u003e\u003ca href=\"https:\/\/github.com\/SequentMicrosystems\/Sequent-Thermocouples-Library\" title=\"Arduino Library for Eight Thermocouples DAQ HAT\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/Arduino-144.jpg?v=1773882805\" alt=\"Arduino\" style=\"height: 72px; width: auto;\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eINTERFACES AND I\/O\u003c\/h3\u003e\n\u003ctable style=\"width: auto; border-collapse: collapse; table-layout: fixed; font-family: Arial, sans-serif; font-size: 15px; line-height: 1.4;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 49%;\"\u003e \u003ccol style=\"width: 24%;\"\u003e \u003ccol style=\"width: 27%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eI\/O's\u003c\/th\u003e\n\u003cth style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eCommunication\u003c\/th\u003e\n\u003cth style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eSoftware Integration\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• Eight Thermocouple Inputs (J, K, T, N, E, B, R, S)\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• I²C Port to Raspberry Pi\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• \u003ca title=\"Command Line for Sequent Microsystems Eight Thermocouples DAQ HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCommand Line\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• 24-bit Delta-Sigma ADC Resolution\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• RS485\/MODBUS RTU Port\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• \u003ca title=\"Python Library for Sequent Microsystems Eight Thermocouples DAQ HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/blob\/main\/python\/README.md\" rel=\"noopener noreferrer\" target=\"_blank\"\u003ePython Library\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• Automatic Cold-Junction Compensation\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• \u003ca title=\"Node-RED nodes for Sequent Microsystems Eight Thermocouples DAQ HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/tree\/main\/Node-RED\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eNode-RED nodes\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• \u003ca title=\"CODESYS Library for Eight Thermocouples DAQ HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/SM_CODESYS\/tree\/main\/Thermocouple%20DAQ\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eCODESYS Driver\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• \u003ca href=\"https:\/\/autonomylogic.com\/\" title=\"OpenPLC website, software can be used directly with Eight Thermocouples DAQ HAT\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eOpenPLC Module\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; vertical-align: top; border: 1px solid #ddd;\"\u003e• \u003ca title=\"Arduino Library for Eight Thermocouples DAQ HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/Sequent-Thermocouples-Library\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eArduino Library\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"3\" style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eOther Features\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e• User-programmable threshold LEDs for all eight channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e• Integrated 5V power supply for Raspberry Pi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\" style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e• Maximum acquisition rate: 40 samples per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e• Factory-calibrated accuracy: ±1% — up to ±0.01% after field calibration\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e• Pluggable connectors for 26–18 AWG field wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e• PLC-ready via RS485\/MODBUS RTU — no Raspberry Pi required\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e• Onboard hardware watchdog and resettable fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e• General-purpose programmable pushbutton\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e• Eight-level stackable — up to 64 thermocouple channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDESCRIPTION\u003c\/h3\u003e\n\u003cp\u003eThe Eight Thermocouples DAQ HAT provides a compact, high-accuracy solution for monitoring thermocouple sensors directly from Raspberry Pi.\u003c\/p\u003e\n\u003cdiv style=\"margin-top: 12px;\"\u003e\n\u003cdiv style=\"display: inline-block; vertical-align: top; width: 48%; padding: 10px 14px; margin: 4px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box;\"\u003e\n\u003cstrong\u003eThermocouple Inputs\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003eEight inputs supporting J, K, T, N, E, B, R, and S thermocouple types for industrial and scientific temperature measurement applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; vertical-align: top; width: 48%; padding: 10px 14px; margin: 4px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box;\"\u003e\n\u003cstrong\u003e24-bit Resolution\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003eHigh-resolution 24-bit delta-sigma A\/D converters with ultra-low-drift (0.005 µV\/°C), low-offset (50 µV) amplifiers deliver factory accuracy of ±1%, improving to ±0.01% after field calibration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; vertical-align: top; width: 48%; padding: 10px 14px; margin: 4px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box;\"\u003e\n\u003cstrong\u003eCold-Junction Compensation\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003eAutomatic cold-junction compensation removes the need for isothermal blocks or manual compensation calculations, simplifying sensor wiring and installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; vertical-align: top; width: 48%; padding: 10px 14px; margin: 4px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box;\"\u003e\n\u003cstrong\u003eRS485 \/ MODBUS RTU\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003eStandard RS485 transceiver with IN and OUT ports. Operates as MODBUS RTU slave under Raspberry Pi control or as a standalone device connected directly to a PLC, with no Raspberry Pi required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; vertical-align: top; width: 48%; padding: 10px 14px; margin: 4px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box;\"\u003e\n\u003cstrong\u003eThreshold LEDs\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003eEight user-programmable LEDs illuminate when the corresponding thermocouple channel exceeds a configurable temperature threshold, providing instant visual status at a glance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; vertical-align: top; width: 48%; padding: 10px 14px; margin: 4px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box;\"\u003e\n\u003cstrong\u003eHardware Watchdog\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003eThe hardware watchdog automatically power-cycles the Raspberry Pi if the software becomes unresponsive, ensuring continuous operation in unattended deployments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; vertical-align: top; width: 48%; padding: 10px 14px; margin: 4px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box;\"\u003e\n\u003cstrong\u003eProgrammable Pushbutton\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003eA general-purpose pushbutton routed to GPIO 26 enables safe Raspberry Pi shutdown without requiring a keyboard, monitor, or remote login — essential for headless field deployments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: inline-block; vertical-align: top; width: 48%; padding: 10px 14px; margin: 4px; border: 1px solid #ddd; border-radius: 4px; box-sizing: border-box;\"\u003e\n\u003cstrong\u003eStacking\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003eUp to eight cards can be stacked on a single Raspberry Pi, sharing only the I²C bus (two GPIO pins) for monitoring up to 64 thermocouple channels simultaneously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTECHNICAL DETAILS\u003c\/h3\u003e\n\u003ch4\u003eCARD LAYOUT\u003c\/h4\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/PCBoard.jpg?v=1785542020\" alt=\"Eight Thermocouples DAQ HAT board layout\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch4\u003eMECHANICAL SPECIFICATIONS\u003c\/h4\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" style=\"float: none;\" alt=\"Eight Thermocouples DAQ HAT Mechanical Specifications\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/ModularIndustrial-Mech.jpg?v=1633452393\"\u003e\u003c\/p\u003e\n\u003ch4\u003eDIP SWITCH AND STACKING\u003c\/h4\u003e\n\u003cp\u003eThe onboard four-position DIP switch configures the stack address and the RS485 port terminator. Cards of different Sequent HAT types can be freely mixed in the same stack.\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; margin-top: 8px; width: auto;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 6px 14px; border: 1px solid #ddd; text-align: left;\"\u003eSwitch\u003c\/th\u003e\n\u003cth style=\"padding: 6px 14px; border: 1px solid #ddd; text-align: left;\"\u003eName\u003c\/th\u003e\n\u003cth style=\"padding: 6px 14px; border: 1px solid #ddd; text-align: left;\"\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eID2\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003e\u003cspan\u003eStack ID bit 2\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003e\u003cspan\u003eBinary stack address bit 2 (MSB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eID1\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eStack ID bit 1\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eBinary stack address bit 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eID0\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eStack ID bit 0\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eBinary stack address bit 0 (LSB) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eTERM\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eRS485 termination\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003e\u003cspan\u003eEnable on the last card in an RS485 chain to prevent signal reflections\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eELECTRICAL SPECIFICATIONS\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px;\"\u003e\n\u003ctable style=\"border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"background: #e0f5f3; padding: 6px 10px; border: 1px solid #ddd; text-align: left; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em;\"\u003ePower\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003ePower supply\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e5V from Raspberry Pi GPIO bus or pluggable connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003ePower consumption\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e50 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eOnboard resettable fuse\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"background: #e0f5f3; padding: 6px 10px; border: 1px solid #ddd; text-align: left; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eThermocouple Inputs\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eChannels\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eThermocouple types\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eJ, K, T, N, E, B, R, S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eADC resolution\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e24-bit delta-sigma\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eMaximum sample rate\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e40 SPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eFactory accuracy\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e±1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eAccuracy after calibration\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e±0.01%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eAmplifier drift\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e0.005 µV\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eAmplifier offset\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e50 µV max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eCold-junction compensation\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"background: #e0f5f3; padding: 6px 10px; border: 1px solid #ddd; text-align: left; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eGeneral\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eOperating temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e−40°C to 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003eWire gauge (connectors)\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 10px; border: 1px solid #ddd;\"\u003e26–16 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003ePOWER REQUIREMENTS\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px;\"\u003e\n\u003cdiv style=\"padding: 12px 16px; border: 1px solid #ddd; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003ePower supply:\u003c\/strong\u003e The card is powered from the Raspberry Pi GPIO bus (5V) or from its own pluggable 2-pin connector. Operating current is 50 mA. An integrated 5V supply delivers power to the Raspberry Pi when used as a HAT, eliminating the need for a separate Raspberry Pi power supply.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eFIELD CALIBRATION\u003c\/h4\u003e\n\u003cp\u003eAll thermocouple inputs are factory-calibrated. Firmware commands allow the user to \u003cstrong\u003erecalibrate the board\u003c\/strong\u003e or perform \u003cstrong\u003ehigher-precision calibration\u003c\/strong\u003e if required.\u003c\/p\u003e\n\u003cp\u003eCalibration is performed using a \u003cstrong\u003etwo-point method\u003c\/strong\u003e with an external high-precision voltage reference. The two calibration points should be placed \u003cstrong\u003eas far apart as possible within the measurement range\u003c\/strong\u003e to maximize accuracy.\u003c\/p\u003e\n\u003cp\u003eCalibration values are stored in \u003cstrong\u003enon-volatile flash memory\u003c\/strong\u003e. If an incorrect value is entered during calibration, a \u003cstrong\u003eRESET command\u003c\/strong\u003e can restore factory calibration values and the procedure can be repeated.\u003c\/p\u003e\n\u003cp\u003eFor a full list of calibration commands, run: \u003ccode style=\"background: #f0f0f0; padding: 2px 6px; border-radius: 3px; font-family: monospace;\"\u003esmtc -h\u003c\/code\u003e\u003c\/p\u003e\n\u003ch4\u003eCOMMUNICATION INTERFACES\u003c\/h4\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cdiv style=\"border: 1px solid #ddd; border-radius: 4px; margin-bottom: 12px; overflow: hidden;\"\u003e\n\u003cdiv style=\"background: #e0f5f3; padding: 8px 14px; font-weight: bold; font-family: Arial, sans-serif;\"\u003eRS485 \/ MODBUS RTU\u003c\/div\u003e\n\u003cdiv style=\"padding: 10px 14px;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003eThe Eight Thermocouples DAQ HAT includes a standard RS-485 transceiver that can \u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; line-height: 115%; font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 'Times New Roman'; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-latin; mso-bidi-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"\u003eoperate in one of two software-selectable modes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; line-height: 115%; font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 'Times New Roman'; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-latin; mso-bidi-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"\u003eRaspberry Pi Mode\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; line-height: 115%; font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 'Times New Roman'; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-latin; mso-bidi-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"\u003eIn Raspberry Pi Mode, the RS485 transceiver is connected directly to the Raspberry Pi UART, allowing the Raspberry Pi to communicate with any RS485-compatible device. In this mode, the onboard processor automatically disconnects from the RS485 interface and does not interfere with communications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; line-height: 115%; font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 'Times New Roman'; mso-fareast-theme-font: minor-fareast; mso-hansi-theme-font: minor-latin; mso-bidi-theme-font: minor-latin; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"\u003eMODBUS RTU Slave Mode\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn MODBUS RTU Slave Mode, the onboard processor controls the RS485 interface and the card operates as a standard MODBUS RTU slave. Any MODBUS master, such as a PLC, HMI, or industrial controller, can read all inputs and control all outputs using standard MODBUS RTU commands.\u003c\/p\u003e\n\u003cp\u003eA full list of supported MODBUS registers and supported commands is available on \u003ca href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/blob\/main\/MODBUS.md\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eGitHub\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe operating mode is selected using the command-line utility, Python library, or any other supported software interface. Switching between modes is performed automatically by the onboard processor and does not require any hardware jumpers or DIP switch settings. See the online help for details.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eHARDWARE WATCHDOG\u003c\/h4\u003e\n\u003cp\u003eThe Eight Thermocouples DAQ HAT includes a hardware watchdog that ensures your system automatically recovers if the Raspberry Pi software becomes unresponsive. The watchdog is disabled at power-up and activates after it receives the first reset command from the Raspberry Pi.\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; margin: 10px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"background: #e0f5f3; padding: 6px 14px; border: 1px solid #ddd; text-align: left; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eWatchdog Parameters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eInitial timeout period\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eConfigurable — allows time for Raspberry Pi to boot and start the application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eRunning timeout period\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eConfigurable — normal operating timeout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eOff period\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eConfigurable — duration the Raspberry Pi power is cut when timeout triggers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eReset counter\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eStored in non-volatile flash; can be read or cleared at any time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor a full list of watchdog commands, run: \u003ccode style=\"background: #f0f0f0; padding: 2px 6px; border-radius: 3px; font-family: monospace;\"\u003esmtc -h\u003c\/code\u003e\u003c\/p\u003e\n\u003ch4\u003eCOMPATIBILITY\u003c\/h4\u003e\n\u003ctable style=\"border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; margin-top: 8px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd; font-weight: bold; white-space: nowrap;\"\u003eInterface\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eI²C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd; font-weight: bold; white-space: nowrap;\"\u003eGPIO used\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eGPIO2 (SDA), GPIO3 (SCL) — 2 pins only; remaining 24 GPIO pins are free to use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd; font-weight: bold; white-space: nowrap;\"\u003eMax stack\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003e8 cards — up to 64 thermocouple channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd; font-weight: bold; white-space: nowrap;\"\u003eCompatible with\u003c\/td\u003e\n\u003ctd style=\"padding: 5px 14px; border: 1px solid #ddd;\"\u003eAll Raspberry Pi versions from Zero to 5 (40-pin GPIO header)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eFIRMWARE UPDATE\u003c\/h4\u003e\n\u003cp\u003eThe onboard microcontroller firmware can be updated in the field. The update tool downloads the latest firmware from Sequent Microsystems' servers and flashes it to the board over I²C.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff3cd; border-left: 4px solid #ffc107; border-radius: 4px; padding: 10px 14px; margin: 10px 0; font-family: Arial, sans-serif; font-size: 14px;\"\u003e\n\u003cstrong\u003eWARNING:\u003c\/strong\u003e Stop all processes that access the card (Node-RED flows, Python scripts, cron jobs) before starting a firmware update. Accessing the card during an update may corrupt the firmware.\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eRunning the Update\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ccode style=\"background: #f0f0f0; padding: 2px 6px; border-radius: 3px; font-family: monospace;\"\u003e~$ cd ~\/smtc-rpi\/update\/\u003c\/code\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ccode style=\"background: #f0f0f0; padding: 2px 6px; border-radius: 3px; font-family: monospace;\"\u003e~\/smtc-rpi\/update$ .\/update \u0026lt;id\u0026gt;\u003c\/code\u003e\u003c\/p\u003e\n\u003cp\u003eReplace \u003ccode style=\"background: #f0f0f0; padding: 2px 4px; border-radius: 3px; font-family: monospace;\"\u003e\u0026lt;id\u0026gt;\u003c\/code\u003e with the board stack address (0–7). Full instructions including recovery procedures are available at:\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/blob\/main\/update\/README.md\" target=\"_blank\"\u003ehttps:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/blob\/main\/update\/README.md\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eERRATA\u003c\/h4\u003e\n\u003cdiv style=\"background: #fff3cd; border-left: 4px solid #ffc107; border-radius: 4px; padding: 10px 14px; margin: 10px 0; font-family: Arial, sans-serif; font-size: 14px;\"\u003e\n\u003cstrong\u003eERRATA — VER2.0:\u003c\/strong\u003e Polarity is reversed on the channels 5–8 silkscreen markings. Connect wires according to the schematic, not the silkscreen.\u003c\/div\u003e\n\u003ch3\u003eDOWNLOADS\u003c\/h3\u003e\n\u003ctable style=\"width: 569px; border-collapse: collapse; table-layout: fixed; font-family: Arial, sans-serif; font-size: 15px; margin-bottom: 12px;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 142px;\"\u003e \u003ccol style=\"width: 142px;\"\u003e \u003ccol style=\"width: 142px;\"\u003e \u003ccol style=\"width: 142px;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eUser's Guide (PDF)\u003c\/th\u003e\n\u003cth style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eSchematics (PDF)\u003c\/th\u003e\n\u003cth style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eCAD\u003c\/th\u003e\n\u003cth style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003eSoftware \u0026amp; Integrations\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"Eight Thermocouples for Raspberry Pi User's Guide V1.1\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8-Thermocouples-UsersGuide-V1_1.pdf?v=1702173528\" target=\"_blank\"\u003eUser's Guide V1.1\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"Eight Thermocouples HAT Schematic V1.1\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8-THERMO-V1_1-Schematic.pdf?v=1696554337\" target=\"_blank\"\u003eSchematic V1.1\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"Eight Thermocouples HAT 3D STEP Model V1.1\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/Eight_Thermocouples_3D_V1_1.zip?v=1696587893\" target=\"_blank\"\u003e3D STEP Model V1.1\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"Command Line Interface for Eight Thermocouples HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\" target=\"_blank\"\u003eCommand Line\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"Eight Thermocouples HAT User's Guide V2\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8-Thermocouples-UsersGuide-V2.pdf?v=1781283286\" target=\"_blank\"\u003eUser's Guide V2\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"Eight Thermocouples HAT Schematic V2.0\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8-THERMO-V2_0-Schematic.pdf?v=1755358013\" target=\"_blank\"\u003eSchematic V2.0\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"3D Printing Enclosure for Eight Thermocouples HAT\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/3DPrinting.zip?v=1627324035\" target=\"_blank\"\u003e3D Printing Enclosure\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"Python Library for Eight Thermocouples HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/blob\/main\/python\/README.md\" target=\"_blank\"\u003ePython Library\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8-Thermocouples-UsersGuide-V3.pdf?v=1785549315\" title=\"8-Thermocouples HAT User's Guide V3\" rel=\"noopener\" target=\"_blank\"\u003eUser's Guide V3\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"Node-RED nodes for Eight Thermocouples HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/tree\/main\/Node-RED\" target=\"_blank\"\u003eNode-RED nodes\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"MODBUS Interface for Eight Thermocouples HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\/blob\/main\/MODBUS.md\" target=\"_blank\"\u003eMODBUS interface\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"CODESYS Library for Eight Thermocouples DAQ HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/SM_CODESYS\/tree\/main\/Thermocouple%20DAQ\" target=\"_blank\"\u003eCODESYS Library\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e\u003ca rel=\"noopener noreferrer\" title=\"Arduino Library for Eight Thermocouples HAT\" href=\"https:\/\/github.com\/SequentMicrosystems\/Sequent-Thermocouples-Library\" target=\"_blank\"\u003eArduino Library\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/RoHS-and-REACH-Compliance-8-Thermocouples.pdf?v=1786739607\" title=\"Eight Thermocouples HAT RoHS and REACH Declaration\" rel=\"noopener\" target=\"_blank\"\u003eRoHS and REACH Compliance Declaration\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/SM-I-019_CE_EMC_Report.pdf?v=1786739451\" title=\"Eight Thermocouples HAT CE Test Report\" rel=\"noopener\" target=\"_blank\"\u003eCE EMC Test Report\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/LCSA07316083E_SM-I-019_Certificate.pdf?v=1786739070\" title=\"Eight Thermocouples HAT CE Certificate\" rel=\"noopener\" target=\"_blank\"\u003eCE Certification\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eWHAT'S INCLUDED\u003c\/h3\u003e\n\u003cp\u003eWhen you purchase the card you will receive the following items:\u003c\/p\u003e\n\u003ctable style=\"width: auto; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 15px; margin-bottom: 12px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003e1. Eight Thermocouples DAQ HAT for Raspberry Pi\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border: 1px solid #ddd; text-align: center;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8-THERMO-V3-1-card_480x480.jpg?v=1785548874\" alt=\"8 Thermocouples HAT\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 15px; margin-bottom: 12px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003e2. Mounting Hardware\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border: 1px solid #ddd; width: 40%; text-align: center; vertical-align: middle;\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/hardware.gif?v=1672544031\" alt=\"Mounting hardware for Eight Thermocouples DAQ HAT\" style=\"max-width: 100%;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border: 1px solid #ddd; vertical-align: middle;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eFour M2.5×18mm male-female brass standoffs\u003c\/li\u003e\n\u003cli\u003eFour M2.5×5mm brass screws\u003c\/li\u003e\n\u003cli\u003eFour M2.5 brass nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 15px; margin-bottom: 12px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"background: #e0f5f3; padding: 8px 10px; text-align: left; font-size: 14px; font-weight: bold; border: 1px solid #ddd; text-transform: uppercase; letter-spacing: 0.04em;\"\u003e3. Connector Plugs for all Inputs and Power\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; border: 1px solid #ddd; width: 40%; text-align: center; vertical-align: middle;\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/plugs.jpg?v=1680751713\" alt=\"Connector plugs for Eight Thermocouples DAQ HAT\" style=\"max-width: 100%;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; border: 1px solid #ddd; vertical-align: middle;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eOne 2-pin female mating connector plug for power\u003c\/li\u003e\n\u003cli\u003eTwo 3-pin female mating connector plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eQUICK START\u003c\/h3\u003e\n\u003col style=\"font-family: Arial, sans-serif; margin-top: 8px; padding-left: 22px; line-height: 1.7;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003ePlug your card on top of your Raspberry Pi and power up the system.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eEnable I²C communication on Raspberry Pi using \u003ccode style=\"background: #f0f0f0; padding: 2px 5px; border-radius: 3px; font-family: monospace;\"\u003eraspi-config\u003c\/code\u003e.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003eInstall the software from GitHub:\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cdiv\u003e\u003ccode style=\"background: #f0f0f0; padding: 2px 6px; border-radius: 3px; font-family: monospace;\"\u003e~$ git clone https:\/\/github.com\/SequentMicrosystems\/smtc-rpi.git\u003c\/code\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 4px;\"\u003e\u003ccode style=\"background: #f0f0f0; padding: 2px 6px; border-radius: 3px; font-family: monospace;\"\u003e~$ cd \/home\/pi\/smtc-rpi\u003c\/code\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 4px;\"\u003e\u003ccode style=\"background: #f0f0f0; padding: 2px 6px; border-radius: 3px; font-family: monospace;\"\u003e~\/smtc-rpi$ sudo make install\u003c\/code\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 4px;\"\u003e\u003ccode style=\"background: #f0f0f0; padding: 2px 6px; border-radius: 3px; font-family: monospace;\"\u003e~\/smtc-rpi$ smtc\u003c\/code\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe program will respond with a list of available commands. To read more about the CLI, please refer to the \u003ca href=\"https:\/\/github.com\/SequentMicrosystems\/smtc-rpi\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eREADME\u003c\/a\u003e file. If you would rather use a different platform, you can access the same functionality through dedicated, ready-to-use integrations in the Downloads tab above.\u003c\/p\u003e","brand":"Sequent Microsystems","offers":[{"title":"Default Title","offer_id":46030008221948,"sku":"SM-I-019","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8-THERMO-V3-1_a969158a-8062-470d-9a71-af13ad7a42e8.jpg?v=1791260317","url":"https:\/\/sequentmicrosystems.com\/products\/eight-thermocouples-daq-stackable-hat-raspberry-pi","provider":"Sequent Microsystems","version":"1.0","type":"link"}