Bela port of Arduino library for I2C TCA9555 16 channel port expander - giuliomoro/TCA9555-bela ...
Arduino library for I2C MCP23017 16 channel port expander - quiknick/MCP23017_NK ...
A while ago I received a couple of I/O port expander modules that use the I 2 C protocol. Using that Chinese module, you can use only the SDA and SCL pins of your Arduino, or any microcontroller ...
There are times when you don’t need much processing power for your project but you do need a lot of I/O pins. It often doesn’t make economic sense to choose a larger microcontroller just to get extra ...
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