Home » Six-in-one LCD Adapter Kit Using 2004 or 1602 LCDs for Raspberry Pi
Six-in-one LCD Adapter Kit for Raspberry Pi with 2004 or 1602 LCD, featuring rotary encoder, six pushbuttons, and I2C interface.
Six-in-one LCD adapter kit with 2004 LCD display showing green text, mounted on Raspberry Pi with rotary encoder and pushbuttons.
Six-in-one LCD adapter kit connected to a Raspberry Pi with a red backlit display showing text and multi-button controls.
Six-in-one LCD Adapter Kit for Raspberry Pi with rotary encoder, six pushbuttons, and GPIO headers, supporting 2004 and 1602 LCD displays.
Six-in-one LCD Adapter Kit PCB for Raspberry Pi with rotary encoder and six pushbuttons
Six-in-one LCD Adapter Kit Using 2004 or 1602 LCDs for Raspberry Pi
Six-in-one LCD Adapter Kit for Raspberry Pi with 2004 or 1602 LCD, featuring rotary encoder, six pushbuttons, and I2C interface.
Six-in-one LCD adapter kit with 2004 LCD display showing green text, mounted on Raspberry Pi with rotary encoder and pushbuttons.
Six-in-one LCD adapter kit connected to a Raspberry Pi with a red backlit display showing text and multi-button controls.
Six-in-one LCD Adapter Kit for Raspberry Pi with rotary encoder, six pushbuttons, and GPIO headers, supporting 2004 and 1602 LCD displays.
Six-in-one LCD Adapter Kit PCB for Raspberry Pi with rotary encoder and six pushbuttons
Six-in-one LCD Adapter Kit Using 2004 or 1602 LCDs for Raspberry Pi
SKU: SM-A-012

Six-in-one LCD Adapter Kit Using 2004 or 1602 LCDs for Raspberry Pi

Supports 1602, 2004, 77x47mm, 98x60mm, monochrome/RGB LCDs; Rotary encoder, six pushbuttons.

Sale
In stock
$15.00
$15.00 $25.00

Overview

Six-in-one LCD Adapter Kit for Raspberry Pi. The Raspberry Pi has its own HDMI port that can drive a monitor or a TV, but most embedded systems only need to display a small amount of information locally. This adapter gives the Raspberry Pi a local text display plus a rotary encoder and six pushbuttons for on-device menu navigation and control, using only the I2C bus.

  • Supports two-line x16 (1602) and four-line x20 (2004) LCDs
  • Supports 77x47mm and 98x60mm four-line (2004) LCDs
  • Supports LCDs with monochrome or RGB backlighting
  • LCD not included
  • On-board 32-bit processor
  • Uses only the I2C port — all GPIO pins remain available
  • Works with any Raspberry Pi from Zero to 5
  • Rotary encoder and six pushbutton inputs
  • Installs on top of the Raspberry Pi, or away from it via a ribbon cable
  • ECCN Code EAR99

Software Integration

Command line, Python, Node-RED, and Arduino libraries are all available for the LCD Adapter Kit.

Command Line Python Node-RED Arduino

INTERFACES AND I/O

I/O's Communication Software Integration
• 1602 / 2004 LCD Interface, Monochrome or RGB Backlight • I2C Port to Raspberry Pi • Command Line
• One Rotary Encoder Input • Python Library
• Six Pushbutton Inputs • Node-RED example
• Arduino
Other Features
• On-board 32 bit processor
• Uses only the I2C port — all GPIO pins remain available
• Works with any Raspberry Pi from Zero to 5
• Installs on top of Raspberry Pi, or away from it via ribbon cable • Ships with through-hole parts unassembled — soldering required
• LCD not included • ECCN Code EAR99

DESCRIPTION

The Raspberry Pi has its own HDMI port which can drive a monitor or a TV. But most embedded systems need to display just a small amount of information, and the ability to display a few lines of text and interact with the Pi locally can be very valuable. The Six-in-One LCD Adapter Kit answers that need, combining LCD display support with a rotary encoder and six pushbuttons on a single board that uses only the I2C bus.

1602 Displays

Standard two-line, 16-character LCDs (LCD1602), 80mm wide and 36mm tall, are fully supported.

2004 Displays

Four-line, 20-character LCDs (LCD2004) are supported in both common sizes: 77x47mm and 98x60mm.

Backlight Options

Both 1602 and 2004 displays are available with monochrome or RGB backlighting. Monochrome displays use a 16-pin connector, RGB displays use 18 pins. All six possible display combinations plug into the same 18-pin header and are controlled from the same interface.

Rotary Encoder & Pushbuttons

A rotary encoder and six pushbuttons provide the most convenient way to scroll through multiple menus, display input values, and control outputs directly from the board.

Mounting Flexibility

Mount the display directly on top of the Raspberry Pi using the included standoffs, or mount it away from the Raspberry Pi using a standard 40-pin flat ribbon cable (not provided).

Perforated PCB

When using the large 2004 display, install the encoder and pushbuttons on the bottom row. For the small 2004 or the 1602 display, break the PCB at the perforations and install the encoder and pushbuttons on the top row.

TECHNICAL DETAILS

CARD LAYOUT

Six-in-One LCD Adapter Kit with large 2004 display, encoder and pushbuttons on the bottom row Six-in-One LCD Adapter Kit with small 1602 display, PCB broken at perforation, encoder and pushbuttons on the top row
Large 2004 display — encoder and pushbuttons on the bottom row. Small 2004 or 1602 display — PCB broken at perforation, encoder and pushbuttons on the top row.

POWER REQUIREMENTS

Power supply: The board has no separate power connector — it is powered entirely by the Raspberry Pi over the GPIO/I2C header, requiring no external power supply.

COMMUNICATION INTERFACES

I2C

The Six-in-One LCD Adapter Kit is controlled entirely over I2C from the Raspberry Pi — the display, rotary encoder, and pushbuttons are all accessed through the same onboard processor over this single bus. Only the I2C pins are used, leaving the remaining 24 GPIO pins free for other purposes.

FIRMWARE UPDATE

The 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.

WARNING: 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.

Running the Update

~$ cd ~/smlcd-rpi/update/

~/smlcd-rpi/update$ ./update

Full instructions including recovery procedures are available at:

https://github.com/SequentMicrosystems/smlcd-rpi

DOWNLOADS

User's Guide (PDF) Schematics (PDF) CAD Software & Integrations
Schematic V1.0 3D Model Command Line
Python
Node-RED Sprinkler Controller Menu Example
Arduino Library

WHAT'S INCLUDED

When you purchase the kit you will receive the following items. Since the rotary encoder and the tactile switches can be installed in different positions depending on the display type you want to use, the kit ships with the through-hole parts unassembled.

ATTENTION: A SOLDERING IRON IS REQUIRED FOR ASSEMBLY.
1. Printed Circuit Board, with all surface mount components assembled
Six-in-One LCD Adapter Kit printed circuit board with surface mount components assembled
2. 2x20 Male-Female Raspberry Pi Tall GPIO Header, preinstalled
2x20 Male-Female Raspberry Pi Tall GPIO header preinstalled on the Six-in-One LCD Adapter Kit
  • Preinstalled on the board — no soldering required for this part
  • Sits between the Raspberry Pi and the adapter board
3. Mounting Hardware
Mounting hardware for Six-in-One LCD Adapter Kit for Raspberry Pi
  • Brass standoffs, for mounting the adapter directly on top of the Raspberry Pi (19mm)
  • Brass nuts and screws
4. Rotary Encoder and 6 Pushbutton Switches
Rotary encoder and six pushbutton switches for Six-in-One LCD Adapter Kit
  • Through-hole parts — position depends on the display you plan to use, so they ship unassembled
  • For the large 2004 display: solder onto the bottom row
  • For the small 2004 display or the 1602 display: break the PCB along the perforations first, then solder onto the top row
5. 1x18 Male and Female Pin Headers
1x18 male and female pin headers included with the Six-in-One LCD Adapter Kit
  • Both connector types are included to cover all possibilities — some displays come without a connector, others with the male connector already soldered
  • Solder the female header on to plug the display in, or the male header on to solder the display directly to the adapter

QUICK START

  1. Assemble the kit: solder the 2x20 header (if not already installed), the 1x18 male or female header for your display, and the rotary encoder and pushbuttons in the position matching your display size (see What's Included above).
  2. Plug your assembled board on top of your Raspberry Pi — or connect it remotely with a standard 40-pin ribbon cable — and power up the system.
  3. Enable I2C communication on Raspberry Pi using raspi-config.
  4. Install the software from GitHub:
    ~$ git clone https://github.com/SequentMicrosystems/smlcd-rpi.git
    ~$ cd /home/pi/smlcd-rpi
    ~/smlcd-rpi$ sudo make install
    ~/smlcd-rpi$ smlcd

The program will respond with a list of available commands. To read more about the cli, please refer to the README 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

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