IO Expander
- U129MCP23008 Breakout2023-10-24
- U125Multi-Purpose IO Card2023-07-26
- U121An I2C Matrix Keypad2023-06-27
- U98Redesigning my MCP23017 breakout2023-01-20
- U64A breadboard friendly MCP230172022-05-28
- U53I2C IO Module with 4 Relay Outputs and 4 Galvanic Isolated Inputs2022-03-14
- U46Port Extender Card for the MCU-8266-12E2022-01-21
- U44ATMega328P prototype add-on card for use with the MCU-8266-12E IoT controller.2022-01-17
- U37Build your own 8 DI Optically Isolated Arduino Shield – Part 22021-07-22
- U22MCP23017 with Adafruit Library2020-10-30
- U19Using the MCP23017 to increase your GPIO's2020-10-13
- U18Using I2C with a 4x4 Matrix Keypad2020-10-05
- U13Multiple I2C Devices on the same Bus, I2C Part 32020-09-12
- U6Extending Arduino/Esp32/STM32 GPIO Pins - PART 22020-08-28
- U5Extending the Inputs and Outputs of your Arduino/ESP32/STM322020-08-21