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Dec 15th, 2019
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C++ 0.17 KB | None | 0 0
  1. uint8_t digitalReadFast(uint8_t pin)
  2. {
  3.     uint8_t bit = digitalPinToBitMask(pin);
  4.     uint8_t port = digitalPinToPort(pin);
  5.     return *portInputRegister(port) & bit;
  6. }
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