{"product_id":"8-hv-and-8-lv-digital-inputs-for-raspberry-pi-io-back-panel","title":"8 HV and 8 LV Digital Inputs for Raspberry Pi I\/O Back Panel","description":"\u003cp\u003eThis industrial-grade \u003cstrong\u003e8 HV and 8 LV Digital Inputs Card\u003c\/strong\u003e features eight 240V and eight 24V opto-isolated AC\/DC digital inputs, making it ideal for factory automation, process control, and remote monitoring applications. Designed for seamless integration with the Raspberry Pi Back Panel, it supports MODBUS RTU over RS485, OpenPLC, and CODESYS. Engineered for dependable performance in demanding industrial settings, this stackable input board is perfect for scalable industrial control systems.\u003c\/p\u003e\n\u003ch3\u003eFEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 opto-isolated inputs\u003c\/strong\u003e: 8× HV (24–240 VAC\/DC) + 8× LV (3–24 VAC\/DC, PNP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector routing\u003c\/strong\u003e: HV on card via 2×8 pluggable connectors; LV to Back Panel spring-loaded terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Panel integration\u003c\/strong\u003e: plug-and-play with auto slot addressing; mix up to 8 HOP cards per panel; panels can be chained\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostics\u003c\/strong\u003e: per-channel status LEDs and 128×32 OLED for on-board feedback\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial protocols\u003c\/strong\u003e: RS485 \/ MODBUS RTU (can operate without a Raspberry Pi)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"240\" data-start=\"213\"\u003eCAN Support via CANopen\u003c\/strong\u003e\u003cbr data-end=\"243\" data-start=\"240\"\u003eIntegrated CAN interface enables reliable CANopen communication for seamless industrial networking and real-time device control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoftware support\u003c\/strong\u003e: CLI \u0026amp; Python libraries; OpenPLC and CODESYS compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation \u0026amp; safety\u003c\/strong\u003e: opto-isolation on all inputs; clear HV\/LV separation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance\u003c\/strong\u003e: ECCN EAR99\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDESCRIPTION\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e8 HV and 8 LV Digital Inputs Card\u003c\/strong\u003e adds \u003cstrong\u003e16 opto-isolated digital inputs\u003c\/strong\u003e to the Raspberry Pi Back Panel for reliable field signal monitoring. It combines \u003cstrong\u003e8×LV inputs (3–24 VAC\/DC, active-high\/PNP)\u003c\/strong\u003e and \u003cstrong\u003e8×HV inputs (24–240 VAC\/DC)\u003c\/strong\u003e with clear routing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLV inputs\u003c\/strong\u003e are mapped to the Back Panel \u003cem\u003espring-loaded\u003c\/em\u003e terminals for fast, tidy wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHV inputs\u003c\/strong\u003e are brought out on the card’s \u003cem\u003e2×8 pluggable\u003c\/em\u003e connectors for safe separation and serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned for industrial use, the \u003cstrong\u003e8 HV and 8 LV Digital Inputs Card\u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003efeatures \u003cstrong\u003eper-channel status LEDs\u003c\/strong\u003e and a \u003cstrong\u003e128×32 OLED\u003c\/strong\u003e for on-board diagnostics. Control it from the Raspberry Pi over \u003cstrong\u003eI²C\u003c\/strong\u003e (leaving GPIOs free) using our CLI\/Python libraries, or use the integrated \u003cstrong\u003eRS485 \/ MODBUS RTU\u003c\/strong\u003e interface to connect directly to PLC\/SCADA systems—no Pi required.\u003c\/p\u003e\n\u003cp\u003eAs part of the \u003cstrong\u003eHOP\u003c\/strong\u003e ecosystem, the \u003cstrong\u003e8 HV and 8 LV Digital Inputs Card\u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003esupports \u003cstrong\u003eauto slot addressing\u003c\/strong\u003e and scales with your build: use up to \u003cstrong\u003eeight HOP cards (any mix)\u003c\/strong\u003e per Back Panel, and \u003cstrong\u003echain panels\u003c\/strong\u003e for larger installations. The card is powered from the Back Panel rails, so no extra power wiring is needed.\u003c\/p\u003e\n\u003ch4\u003eWATCHDOG\u003c\/h4\u003e\n\u003cp\u003eWhen enabled, the on-board watchdog expects periodic “kicks” from the Raspberry Pi (or a MODBUS master). If the timeout expires, the card asserts the Back Panel reset line and the Back Panel cuts power to the Raspberry Pi for ~10 s, then restores it—ensuring automatic recovery from lockups. The watchdog is off by default and can be configured from the CLI\/Python libraries.\u003c\/p\u003e\n\u003ch4\u003eSTACK LEVEL\u003c\/h4\u003e\n\u003cp\u003eNo DIP switches or jumpers required—the \u003cem\u003ephysical slot\u003c\/em\u003e on the Back Panel defines the card’s stack level. The level is read at power-up and shown on the OLED (e.g., S1…S8). Software addressing uses this slot number, so you can move cards between slots without reconfiguration. Use up to eight HOP cards (any mix) per Back Panel; panels can be chained for larger systems.\u003c\/p\u003e\n\u003ch4\u003eINTERRUPT\u003c\/h4\u003e\n\u003cp\u003eEach HOP card can signal an interrupt to the Raspberry Pi via the Back Panel’s shared \u003cem\u003eINT\u003c\/em\u003e line (wired-OR, active-low). Typical events (e.g., input change, status\/fault) are latched in firmware and cleared by reading the status register. In your application, attach an edge handler to the Raspberry Pi’s interrupt GPIO (default \u003cem\u003ephysical pin 37 \/ GPIO26\u003c\/em\u003e, configurable in software) to react instantly without polling.\u003c\/p\u003e\n\u003ch4\u003eHV Inputs Pinout\u003c\/h4\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8xHV-8xLV-DIGITAL-IN-CONN_480x480.jpg?v=1759726403\" alt=\"16-Channel Digital Inputs connectors\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eBACK PANEL TERMINAL BLOCK PINOUT\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eEach slot on the Back Panel has allocated three 6-pin spring-loaded terminal-blocks for I\/O wiring. The pinout is shown in the following picture:\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg alt=\"Back Panel wiring — LV inputs on spring-loaded terminals\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/TerminalBlock-IO_480x480.jpg?v=1759503531\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch4\u003eInput Mapping (Back Panel Terminals)\u003c\/h4\u003e\n\u003cp\u003eOnly \u003cstrong\u003eLV inputs #1–#8\u003c\/strong\u003e are on the Back Panel terminals. “+\/P” = Line\/Positive; “-\/N” = Return\/Negative.\u003c\/p\u003e\n\u003ctable style=\"width: auto; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 4px; border-bottom: 1px solid #ddd;\"\u003eBP Line\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 4px; border-bottom: 1px solid #ddd;\"\u003eFunction\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 4px; border-bottom: 1px solid #ddd;\"\u003eBP Line\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 4px; border-bottom: 1px solid #ddd;\"\u003eFunction\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 4px; border-bottom: 1px solid #ddd;\"\u003eBP Line\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 4px; border-bottom: 1px solid #ddd;\"\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO01\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #1 +\/P\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO07\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #4 +\/P\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO13\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #7 +\/P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO02\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #1 -\/N\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO08\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #4 -\/N\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO14\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #7 -\/N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO03\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #2 +\/P\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO09\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #5 +\/P\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO15\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #8 +\/P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO04\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #2 -\/N\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO10\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #5 -\/N\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO16\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #8 -\/N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO05\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #3 +\/P\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO11\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #6 +\/P\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO17\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003ePANIC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO06\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #3 -\/N\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO12\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eInput #6 -\/N\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eIO18\u003c\/td\u003e\n\u003ctd style=\"padding: 4px;\"\u003eN.C.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eIO17 is an open-drain output triggered by a predefined error condition on an out-of-bounds input. It can be used to activate an external alarm, or can be routed back to IO18 to reset the outputs to a predefined state. IO17 can be used only on cards with inputs.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eIO18 is a dry-contact-to-ground input and can be activated by an external contact wired to the Back Panel terminal block. When triggered, it resets all outputs to a predefined state. \u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003eIO18 can be used only on cards with outputs.\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cstrong\u003eDOT MATRIX DISPLAY\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8xHV-8xLV-DIGITAL-IN-OLED_480x480.jpg?v=1759565729\" alt=\"OLED for 16-Channel Digital Inputs Card\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003eThe \u003cstrong\u003e8 HV and 8 LV Digital Inputs Card\u003c\/strong\u003e includes a 128 × 32 dot-matrix display driven by the on-board processor. It can show status information, self-test results, and error messages. At power up it displays the card name, the I2C address, the slot position and the value of the 24V supply.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003c!--block--\u003e\u003cstrong\u003eELECTRICAL SPECIFICATIONS\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003c!--block--\u003ePower Supply: 5V 100mA;  Back Panel provided\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003c!--block--\u003e\u003cstrong\u003eMECHANICAL SPECIFICATIONS\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003c!--block--\u003e\u003cspan data-trix-serialize=\"false\" data-trix-cursor-target=\"true\"\u003e\u003c\/span\u003e\n\u003cfigure data-trix-id=\"722\" data-trix-content-type=\"image\" data-trix-attachment='{\"contentType\":\"image\",\"height\":387,\"url\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/ModularIndustrial-Mech.jpg?v=1633452393\",\"width\":600}' class=\"attachment attachment-preview\"\u003e\u003cimg alt=\"16-Channel Digital Inputs for Raspberry Pi Mechanical\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/mechanical_480x480.jpg?v=1751297156\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\u003cfigcaption class=\"caption\"\u003e\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cspan data-trix-serialize=\"false\" data-trix-cursor-target=\"true\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\n\u003c!--block--\u003eDOWNLOADS\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8xHV-8xLV-Schematic-V1_0.pdf?v=1759981172\" title=\"16-Channel Digital Inputs HV\/LV for Raspberry Pi Back Panel Schematic V1.0\" rel=\"noopener\" target=\"_blank\"\u003eHardware Schematic V1.0\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8xHV-8xLV-User_Guide-V1_0.pdf?v=1759981173\" title=\"16-Channel Digital Inputs HV\/LV for Raspberry Pi Back Panel Users Guide V1.0\" rel=\"noopener\" target=\"_blank\"\u003eUser's Guide V1.0\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/mechanical.dxf?v=1751297638\" title=\"Back Panel for Raspberry Pi IO Plugin Card mechanical Specs\" rel=\"noopener\" target=\"_blank\"\u003e2D DXF Mechanical\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e3D STEP Model\u003c\/p\u003e\n\u003cp\u003e3D Printable Enclosure\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003e\n\u003c!--block--\u003eSOFTWARE\u003c\/h3\u003e\n\u003cdiv\u003e\n\u003cp\u003eCommand Line Drivers\u003c\/p\u003e\n\u003cp\u003ePython Libraries\u003c\/p\u003e\n\u003cp\u003eCODESYS Driver\u003c\/p\u003e\n\u003cp\u003eOpenPLC Module\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003c!--block--\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c!--block--\u003e\u003c\/div\u003e\n\u003ch3\u003e\n\u003c!--block--\u003eQUICK START\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003c!--block--\u003ePlug the \u003cstrong\u003e8 HV and 8 LV Digital Inputs Card\u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003eon the Back Panel for Raspberry Pi and power up the system.\u003c\/li\u003e\n\u003cli\u003e\n\u003c!--block--\u003eEnable I2C communication on Raspberry Pi using raspi-config.\u003c\/li\u003e\n\u003cli\u003e\n\u003c!--block--\u003eInstall the software from github.com:\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cul\u003e\n\u003cli\u003egit clone https:\/\/github.com\/SequentMicrosystems\/sequent-cli.git\u003c\/li\u003e\n\u003cli\u003ecd \/home\/pi\/sequent-cli\u003c\/li\u003e\n\u003cli\u003esudo make install\u003c\/li\u003e\n\u003cli\u003e\n\u003c!--block--\u003esequent-cli 16in -h\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003c!--block--\u003eThe program will respond with a list of available commands.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp data-start=\"144\" data-end=\"312\"\u003e\u003cstrong data-start=\"144\" data-end=\"206\"\u003eQ: What Raspberry Pi models are compatible with this card?\u003c\/strong\u003e\u003cbr data-start=\"206\" data-end=\"209\"\u003eA: The card is compatible with all 40-pin Raspberry Pi models, including Pi 4, Pi 3, Pi 2, and Pi Zero.\u003c\/p\u003e\n\u003cp data-start=\"666\" data-end=\"829\"\u003e\u003cstrong data-start=\"666\" data-end=\"707\"\u003eQ: How is the stack level determined?\u003c\/strong\u003e\u003cbr data-start=\"707\" data-end=\"710\"\u003eA: Stack level is automatically assigned based on the slot the card is plugged into on the Back Panel via ID0–ID2 pins.\u003c\/p\u003e\n\u003cp data-start=\"831\" data-end=\"1009\"\u003e\u003cstrong data-start=\"831\" data-end=\"873\"\u003eQ: What does the watchdog function do?\u003c\/strong\u003e\u003cbr data-start=\"873\" data-end=\"876\"\u003eA: If the Raspberry Pi fails to communicate over I²C in a set time, the watchdog cuts power for 10 seconds to trigger a system reset.\u003c\/p\u003e\n\u003cp data-start=\"1338\" data-end=\"1496\"\u003e\u003cstrong data-start=\"1338\" data-end=\"1381\"\u003eQ: Can multiple cards be used together?\u003c\/strong\u003e\u003cbr data-start=\"1381\" data-end=\"1384\"\u003eA: Yes, up to 8 cards can be stacked using the Back Panel. Each card auto-assigns its ID for seamless expansion.\u003c\/p\u003e\n\u003cp data-start=\"1498\" data-end=\"1629\"\u003e\u003cstrong data-start=\"1498\" data-end=\"1536\"\u003eQ: Is there a display on the card?\u003c\/strong\u003e\u003cbr data-start=\"1536\" data-end=\"1539\"\u003eA: Yes, it features a 128×32 dot-matrix display for status, self-test, and error messages.\u003c\/p\u003e\n\u003cp data-start=\"1631\" data-end=\"1761\"\u003e\u003cstrong data-start=\"1631\" data-end=\"1679\"\u003eQ: How is communication with the Pi handled?\u003c\/strong\u003e\u003cbr data-start=\"1679\" data-end=\"1682\"\u003eA: Communication is via I²C using SDA and SCL lines on the 2×20 GPIO connector.\u003c\/p\u003e\n\u003cdiv\u003e\u003c!--block--\u003e\u003c\/div\u003e","brand":"Sequent Microsystems","offers":[{"title":"Default Title","offer_id":48184321245436,"sku":"SM-P-410","price":80.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0534\/4392\/0067\/files\/8xHV-8xLV-DIGITAL-IN-2.jpg?v=1774191609","url":"https:\/\/sequentmicrosystems.com\/products\/8-hv-and-8-lv-digital-inputs-for-raspberry-pi-io-back-panel","provider":"Sequent Microsystems","version":"1.0","type":"link"}