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.
Pinout
- 3Vsecond from left
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.
Type · powerVoltage · 3.3V - GNDfourth from left
Ground return for the LED matrix; Adafruit Learn states the matrix uses the GND pin for power and logic.
Type · groundVoltage · 0V - SCLto the left of SDA
I2C clock for IS31FL3731 LED matrix control; Adafruit Learn states all LED control is over I2C and SCL must be connected.
Type · signal - SDArightmost
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.
Type · signal
Start wiring
Shield
Confirm the data interface matches your host board.
Module pins: 3V, GND, SCL, SDA. Schematik maps them to your board in the app.
Add-ons
271 other optionsAbout 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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