TinyWireMCP23008 – MCP23008 library for ATtiny85 microcontroller

If you want to know more… If you want to know more about ATtiny85 microcontroller and how to upload sketches to it, you may have a look to ATtiny85 vs ATmega328. About TinyWireMCP23008 was tested (and works) with a 8 MHz ATtiny85 and I2C standard bus mode and I2C fast bus mode. TinyWireMCP23008 was not tested with ATtiny85 other frequencies, but should work (I can't guarantee that fast bus mode will work wi ...

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Expanding the number of I/O lines using Microchip MCP23008 using pic microcontoller

A microcontroller comes with a limited number of general purpose input and output (GPIO) ports. However, some applications may require more ports than are available on the microcontroller. In such a case, GPIO expanders can be used to increase the I/O capability of the microcontroller. MCP23008 is one such device (manufactured by Microchip Technology) which provides an easy I/O expansion using 2-wire serial ...

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