INPUT_PULLUP is valid mode for the standard arduino GPIOs, see https://www.arduino.cc/reference/en/language/functions/digital-io/pinmode/. The MCP23017 automatically ...
// #define MRUBY_ARDUINO_ALL // Enables _ALL_ arduino functions. Not recommended. // #define MRUBY_ARDUINO_DIGITAL_IO // digitalRead, digitalWrite, pinMode, and HIGH ...
Halloween is coming up faster than you think: time to dust off the gravestones and the zombie lawn decorations! This year you may want to add a little something extra to give the trick-or-treaters a ...
At The Conversation, we take table tennis very seriously. After setting up a new ping pong table, and wanting to learn how to use an Arduino, I had a bit of time to build a scoreboard. An Arduino is a ...
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