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The software configures the input pins with a pull-up. Wire D3 to PLAY, D4 to STOP, D5 to PREV, D6 to NEXT. The SD card is an Adafruit SPI SD card - MOSI on pin 11, MISO on pin 12, SCK on pin 13, ...
Running out of GPIO pins? Learn how to connect multiple buttons to just one Arduino pin using clever wiring and resistor techniques. Perfect for compact projects, keyboards, or when using small ...
The DS18B20 library supports only the DS18B20, only one sensor per pin, no parasite mode, no Fahrenheit and no alarm functions. The only feature the class supports is the asynchronous reading of the ...
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