RGB LCD Shield Kit w/ 16x2 Character Display - Positive

Arduino shield kit with a 16x2 RGB positive character LCD and 5-button keypad, all controlled over I2C using only 2 Arduino pins. Frees remaining GPIO for other I2C devices on the shared bus.

Logical pinout · physical placement not verified

5V
Shield 5 V supply pin for detached use; source says power the 5V pin with 5V.
Type · PowerVoltage · 5V
GND
Common ground for the shield when used detached from an Arduino.
Type · GroundVoltage · 0V
SCL
I2C clock; guide says connect the SCL labelled pin to I2C clock. Also maps to A5 on Uno, D21 on Mega, and D3 on Leonardo.
Type · I2C
SDA
I2C data; guide says connect SDA to I2C data. Also maps to A4 on Uno, D20 on Mega, and D2 on Leonardo.
Type · I2C
LCDkeypad via MCP23017
The MCP23017 I2C port expander drives the 16x2 LCD and UP/DOWN/LEFT/RIGHT/SELECT/RESET buttons, so only the I2C/power pins are needed from the host.
Type · Unknown

Pin	Type	Function	Voltage
5V	Power	Shield 5 V supply pin for detached use; source says power the 5V pin with 5V.	5V
GND	Ground	Common ground for the shield when used detached from an Arduino.	0V
SCL	I2C	I2C clock; guide says connect the SCL labelled pin to I2C clock. Also maps to A5 on Uno, D21 on Mega, and D3 on Leonardo.
SDA	I2C	I2C data; guide says connect SDA to I2C data. Also maps to A4 on Uno, D20 on Mega, and D2 on Leonardo.
LCDkeypad via MCP23017	Unknown	The MCP23017 I2C port expander drives the 16x2 LCD and UP/DOWN/LEFT/RIGHT/SELECT/RESET buttons, so only the I2C/power pins are needed from the host.

Logical pinout · physical placement not verified

Pin details

5 connections

5V
Shield 5 V supply pin for detached use; source says power the 5V pin with 5V.
PowerVoltage · 5V
GND
Common ground for the shield when used detached from an Arduino.
GroundVoltage · 0V
SCL
I2C clock; guide says connect the SCL labelled pin to I2C clock. Also maps to A5 on Uno, D21 on Mega, and D3 on Leonardo.
I2C
SDA
I2C data; guide says connect SDA to I2C data. Also maps to A4 on Uno, D20 on Mega, and D2 on Leonardo.
I2C
LCDkeypad via MCP23017
The MCP23017 I2C port expander drives the 16x2 LCD and UP/DOWN/LEFT/RIGHT/SELECT/RESET buttons, so only the I2C/power pins are needed from the host.
Unknown

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, GND, SCL, SDA. Schematik maps them to your board in the app.

TFT & LCD

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