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Adafruit 16x9 Charlieplexed PWM LED Matrix Driver - IS31FL3731
Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout
Gravity: CH423 I2C 24 Digital IO Expansion Module
Adafruit 16x9 Charlieplexed PWM LED Matrix Driver - IS31FL3731
The Adafruit IS31FL3731 breakout is a charlieplexed PWM LED matrix driver that controls a 16×9 grid of individually dimmable LEDs over I2C. Each of the 144 LEDs can be set to any brightness level with 8-bit (256-level) PWM — no complex wiring or constant signal sending required. The IS31FL3731 o...
Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout
The Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout is a versatile I2C GPIO expander and keypad matrix driver. With 18 I/O pins (10 columns and 8 rows), it can manage up to 80 switches in a matrix configuration or serve as individual GPIO inputs and outputs. Whether you need more butto...
Gravity: CH423 I2C 24 Digital IO Expansion Module
The Gravity CH423 I2C 24 Digital IO Expansion Module extends your microcontroller with 24 additional digital output/input pins over a standard I2C connection. Based on the CH423 chip, it provides 8 GPIOs with interrupt support and 16 dedicated GPOs. The built-in current drive circuit delivers up...
