Adafruit 1.2" 4-Digit 7-Segment Display with I2C Backpack

Adafruit 1.2-inch 4-digit 7-segment LED display driven by the HT16K33 I2C LED controller backpack. Displays up to 4 digits (HH:MM with colon) over I2C. Default I2C address is 0x70 (configurable via solder jumpers to 0x71–0x77).

VCC
5V power supply input to HT16K33 backpack
Type · powerVoltage · 5
GND
Ground reference
Type · ground
SDA
I2C data line — 3.3V logic compatible; connect to ESP32 SDA (shared I2C bus)
Type · i2c
SCL
I2C clock line — 3.3V logic compatible; connect to ESP32 SCL (shared I2C bus)
Type · i2c

Pin	Position	Type	Function	Voltage
VCC

Start wiring

I2C · 5

Confirm the data interface matches your host board.

Module pins: VCC, GND, SDA, SCL. Schematik maps them to your board in the app.

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