I was recently asked to recommend a variety of arduino shields and boards for someone who wished to start learning but with a budget of only $30. Here are the boards and modules that I picked then I will explain…
The is a 16-bit, general purpose parallel I/O port expander for I2C bus applications. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and PORTB). The MCP23017 can be configured to operate in 8-bit or 16-bit modes. Lets…
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