8000 Offers possibility to deactivate default INPUT_PULLUP pin mode by ldebs · Pull Request #83 · PaulStoffregen/Encoder · GitHub
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Offers possibility to deactivate default INPUT_PULLUP pin mode #83

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Offers possibility to deactivate default INPUT_PULLUP pin mode #83

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10 changes: 8 additions & 2 deletions Encoder.h
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,10 @@
#define ENCODER_ARGLIST_SIZE 0
#endif

#if defined(ENCODER_USE_PULLUP) || !defined(ENCODER_DO_NOT_USE_PULLUP)
#define ENCODER_USE_PULLUP
#endif

// Use ICACHE_RAM_ATTR for ISRs to prevent ESP8266 resets
#if defined(ESP8266) || defined(ESP32)
#define ENCODER_ISR_ATTR ICACHE_RAM_ATTR
Expand All @@ -77,15 +81,17 @@ class Encoder
{
public:
Encoder(uint8_t pin1, uint8_t pin2) {
#ifdef INPUT_PULLUP
#if defined(INPUT_PULLUP) && defined(ENCODER_USE_PULLUP)
pinMode(pin1, INPUT_PULLUP);
pinMode(pin2, INPUT_PULLUP);
#else
pinMode(pin1, INPUT);
digitalWrite(pin1, HIGH);
pinMode(pin2, INPUT);
#if defined(ENCODER_USE_PULLUP)
digitalWrite(pin1, HIGH);
digitalWrite(pin2, HIGH);
#endif
#endif
encoder.pin1_register = PIN_TO_BASEREG(pin1);
encoder.pin1_bitmask = PIN_TO_BITMASK(pin1);
encoder.pin2_register = PIN_TO_BASEREG(pin2);
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