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Remove LEDC_BASE_FREQ to calculate duty #381

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Merged
merged 1 commit into from
May 19, 2017
Merged

Remove LEDC_BASE_FREQ to calculate duty #381

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4 changes: 2 additions & 2 deletions libraries/ESP32/examples/AnalogOut/LEDCSoftwareFade/LEDCSoftwareFade.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -28,8 +28,8 @@ int fadeAmount = 5; // how many points to fade the LED by
// Arduino like analogWrite
// value has to be between 0 and valueMax
void ledcAnalogWrite(uint8_t channel, uint32_t value, uint32_t valueMax = 255) {
// calculate duty
uint32_t duty = (LEDC_BASE_FREQ / valueMax) * min(value, valueMax);
// calculate duty, 8191 from 2 ^ 13 - 1
uint32_t duty = (8191 / valueMax) * min(value, valueMax);

// write duty to LEDC
ledcWrite(channel, duty);
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