Port Extender-Inputs
- U125Multi-Purpose IO Card2023-07-26
- U121An I2C Matrix Keypad2023-06-27
- U64A breadboard friendly MCP230172022-05-28
- U53I2C IO Module with 4 Relay Outputs and 4 Galvanic Isolated Inputs2022-03-14
- U40Design and build an ESP8266 IoT Controller, Part 22021-08-21
- U38Build your own 8 DI Optically Isolated Arduino Shield – Part 32021-07-30
- U36Build your own 8 DI Optically Isolated Arduino Shield - Part 12021-07-21
- U22MCP23017 with Adafruit Library2020-10-30
- U19Using the MCP23017 to increase your GPIO's2020-10-13
- U13Multiple I2C Devices on the same Bus, I2C Part 32020-09-12
- U6Extending Arduino/Esp32/STM32 GPIO Pins - PART 22020-08-28