I2C 16x2 RGB LCD KeyPad HAT with RGB Backlight V2.0
Raspberry Pi HAT with a 16x2 RGB LCD, integrated keypad, and I2C interface. It exposes Raspberry Pi GPIO ports and provides RGB backlight control for data monitors and small control panels.
Pinout
- 5V supply
Board supply for the Raspberry Pi I2C 16x2 RGB LCD KeyPad HAT. DFRobot tech specs state supply voltage 5V.
Type · PowerVoltage · 5V - IIC interface
Raspberry Pi IIC/I2C communication interface for the RGB LCD1602 and backlight control. DFRobot states the board uses an IIC interface.
Type · SignalVoltage · 3.3V logic - GPIO16SelectBCM GPIO16
Select push-button input. DFRobot pinout table maps BCM GPIO 16 to Button Select; jumper must be installed for key use.
Type · GPIO, SignalVoltage · 3.3V logic - GPIO17UpBCM GPIO17
Up push-button input. DFRobot pinout table maps BCM GPIO 17 to Button Up; jumper must be installed for key use.
Type · GPIO, SignalVoltage · 3.3V logic - GPIO18DownBCM GPIO18
Down push-button input. DFRobot pinout table maps BCM GPIO 18 to Button Down; jumper must be installed for key use.
Type · GPIO, SignalVoltage · 3.3V logic - GPIO19LeftBCM GPIO19
Left push-button input. DFRobot pinout table maps BCM GPIO 19 to Button Left; jumper must be installed for key use.
Type · GPIO, SignalVoltage · 3.3V logic - GPIO20RightBCM GPIO20
Right push-button input. DFRobot pinout table maps BCM GPIO 20 to Button Right; jumper must be installed for key use.
Type · GPIO, SignalVoltage · 3.3V logic
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| 5V supply | Power | Board supply for the Raspberry Pi I2C 16x2 RGB LCD KeyPad HAT. DFRobot tech specs state supply voltage 5V. | 5V | |
| IIC interface | Signal | Raspberry Pi IIC/I2C communication interface for the RGB LCD1602 and backlight control. DFRobot states the board uses an IIC interface. | 3.3V logic | |
| GPIO16Select | BCM GPIO16 | GPIO, Signal | Select push-button input. DFRobot pinout table maps BCM GPIO 16 to Button Select; jumper must be installed for key use. | 3.3V logic |
| GPIO17Up | BCM GPIO17 | GPIO, Signal | Up push-button input. DFRobot pinout table maps BCM GPIO 17 to Button Up; jumper must be installed for key use. | 3.3V logic |
| GPIO18Down | BCM GPIO18 | GPIO, Signal | Down push-button input. DFRobot pinout table maps BCM GPIO 18 to Button Down; jumper must be installed for key use. | 3.3V logic |
| GPIO19Left | BCM GPIO19 | GPIO, Signal | Left push-button input. DFRobot pinout table maps BCM GPIO 19 to Button Left; jumper must be installed for key use. | 3.3V logic |
| GPIO20Right | BCM GPIO20 | GPIO, Signal | Right push-button input. DFRobot pinout table maps BCM GPIO 20 to Button Right; jumper must be installed for key use. | 3.3V logic |
Pin details
7 connections- 5V supply
Board supply for the Raspberry Pi I2C 16x2 RGB LCD KeyPad HAT. DFRobot tech specs state supply voltage 5V.
PowerVoltage · 5V - IIC interface
Raspberry Pi IIC/I2C communication interface for the RGB LCD1602 and backlight control. DFRobot states the board uses an IIC interface.
SignalVoltage · 3.3V logic - GPIO16SelectBCM GPIO16
Select push-button input. DFRobot pinout table maps BCM GPIO 16 to Button Select; jumper must be installed for key use.
GPIO, SignalVoltage · 3.3V logic - GPIO17UpBCM GPIO17
Up push-button input. DFRobot pinout table maps BCM GPIO 17 to Button Up; jumper must be installed for key use.
GPIO, SignalVoltage · 3.3V logic - GPIO18DownBCM GPIO18
Down push-button input. DFRobot pinout table maps BCM GPIO 18 to Button Down; jumper must be installed for key use.
GPIO, SignalVoltage · 3.3V logic - GPIO19LeftBCM GPIO19
Left push-button input. DFRobot pinout table maps BCM GPIO 19 to Button Left; jumper must be installed for key use.
GPIO, SignalVoltage · 3.3V logic - GPIO20RightBCM GPIO20
Right push-button input. DFRobot pinout table maps BCM GPIO 20 to Button Right; jumper must be installed for key use.
GPIO, SignalVoltage · 3.3V logic
Start wiring
SPI · I2C · 3.3 V · 3.3 – 5 V · Breakout
Adafruit describes product 398 as a 16x2 RGB backlight LCD using digital pins for LCD control and PWM pins for the backlight; the product…
Module pins: 5V supply, IIC interface, GPIO16 / Select, GPIO17 / Up, GPIO18 / Down, GPIO19 / Left, GPIO20 / Right. Schematik maps them to your board in the app.
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