15x7 CharliePlex LED Matrix FeatherWing - Cool White
105-LED 15x7 CharliePlex LED matrix FeatherWing in cool white. Driven by an I2C CharliePlex driver; compatible with all Feather boards.
105-LED 15x7 CharliePlex LED matrix FeatherWing in cool white. Driven by an I2C CharliePlex driver; compatible with all Feather boards.
3.3V Feather power and logic rail used by the LED matrix; Adafruit Learn states the matrix uses the 3V pin for power and logic and typical current is about 40 mA depending on LEDs lit.
Ground return for the LED matrix; Adafruit Learn states the matrix uses the GND pin for power and logic.
I2C clock for IS31FL3731 LED matrix control; Adafruit Learn states all LED control is over I2C and SCL must be connected.
I2C data for IS31FL3731 LED matrix control; Adafruit Learn states all LED control is over I2C and SDA must be connected. Default I2C address is 0x74, configurable to 0x77 by solder jumper.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| 3V | second from left | Power | 3.3V Feather power and logic rail used by the LED matrix; Adafruit Learn states the matrix uses the 3V pin for power and logic and typical current is about 40 mA depending on LEDs lit. | 3.3V |
| GND | fourth from left | Ground | Ground return for the LED matrix; Adafruit Learn states the matrix uses the GND pin for power and logic. | 0V |
| SCL | to the left of SDA | I2C | I2C clock for IS31FL3731 LED matrix control; Adafruit Learn states all LED control is over I2C and SCL must be connected. | |
| SDA | rightmost | I2C | I2C data for IS31FL3731 LED matrix control; Adafruit Learn states all LED control is over I2C and SDA must be connected. Default I2C address is 0x74, configurable to 0x77 by solder jumper. |
3.3V Feather power and logic rail used by the LED matrix; Adafruit Learn states the matrix uses the 3V pin for power and logic and typical current is about 40 mA depending on LEDs lit.
Ground return for the LED matrix; Adafruit Learn states the matrix uses the GND pin for power and logic.
I2C clock for IS31FL3731 LED matrix control; Adafruit Learn states all LED control is over I2C and SCL must be connected.
I2C data for IS31FL3731 LED matrix control; Adafruit Learn states all LED control is over I2C and SDA must be connected. Default I2C address is 0x74, configurable to 0x77 by solder jumper.
Shield
Confirm the data interface matches your host board.
Module pins: 3V, GND, SCL, SDA. Schematik maps them to your board in the app.
About 270 add-ons across Pi HATs, Arduino shields, and FeatherWings. The same function — motor control, PoE, display — usually ships once per host connector family. Get the host board right first.
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