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- fix digitalWrite() - fix setFrequency() - add allOff() - add examples - update readme.md - minor refactor
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| // | ||
| // FILE: PCA9685_allOFF_test.ino | ||
| // AUTHOR: Rob Tillaart | ||
| // DATE: 2020-11-22 | ||
| // VERSION: 0.1.0 | ||
| // PUPROSE: test PCA9685 library | ||
| // | ||
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| /* | ||
| sets all channels to a PWM | ||
| then switches them all off | ||
| you can check it by testing all channels. | ||
| */ | ||
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| #include "PCA9685.h" | ||
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| PCA9685 PCA(0x40); | ||
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| const uint8_t PIN = 2; | ||
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| void setup() | ||
| { | ||
| Wire.begin(); | ||
| PCA.begin(); | ||
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| Serial.begin(115200); | ||
| Serial.print("PCA9685 LIB version: "); | ||
| Serial.println(PCA9685_LIB_VERSION); | ||
| Serial.println(); | ||
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| pinMode(PIN, INPUT_PULLUP); | ||
| for (int channel = 0; channel < 16; channel++) | ||
| { | ||
| PCA.setPWM(channel, 0, 1000); | ||
| } | ||
| delay(100); // to be sure they started. | ||
| PCA.allOFF(); | ||
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| // delay(100); | ||
| // PCA.reset(); // needed to reset the allOFF() | ||
| // for (int channel = 0; channel < 16; channel++) | ||
| // { | ||
| // PCA.digitalWrite(channel, HIGH); | ||
| // } | ||
| } | ||
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| void loop() | ||
| { | ||
| Serial.println(digitalRead(PIN)); // you can measure all pins | ||
| } | ||
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| // -- END OF FILE -- |
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examples/PCA9685_digitalWrite_test/PCA9685_digitalWrite_test.ino
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| // | ||
| // FILE: PCA9685_digitalWrite_test.ino | ||
| // AUTHOR: Rob Tillaart | ||
| // DATE: 2020-11-21 | ||
| // VERSION: 0.1.0 | ||
| // PUPROSE: test PCA9685 library | ||
| // | ||
|
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| /* | ||
| sets one channel to max PWM 0..4095 | ||
| and connect the output to an interrupt pin 2 | ||
| to see the frequency of the PWM | ||
| */ | ||
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| #include "PCA9685.h" | ||
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| PCA9685 PCA(0x40); | ||
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| const uint8_t IRQ_PIN = 2; | ||
| volatile uint16_t count = 0; | ||
| uint32_t lastTime = 0; | ||
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| void setup() | ||
| { | ||
| Wire.begin(); | ||
| PCA.begin(); | ||
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| Serial.begin(115200); | ||
| Serial.print("PCA9685 LIB version: "); | ||
| Serial.println(PCA9685_LIB_VERSION); | ||
| Serial.println(); | ||
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| pinMode(IRQ_PIN, INPUT_PULLUP); | ||
| attachInterrupt(digitalPinToInterrupt(IRQ_PIN), irq, CHANGE); | ||
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| // PCA.setPWM(15, 0, 1000); // works OK - reference to test irq() | ||
| // PCA.digitalWrite(15, LOW); // works OK | ||
| PCA.digitalWrite(15, HIGH); // works OK | ||
| } | ||
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| // INTERRUPT ROUTINE TO COUNT THE PULSES | ||
| void irq() | ||
| { | ||
| count++; | ||
| } | ||
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| void loop() | ||
| { | ||
| uint32_t now = millis(); | ||
| if (now - lastTime >= 1000) | ||
| { | ||
| lastTime = now; | ||
| // make a copy | ||
| noInterrupts(); | ||
| uint16_t t = count; | ||
| count = 0; | ||
| interrupts(); | ||
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| Serial.print(t); | ||
| Serial.print("\t"); | ||
| Serial.println(digitalRead(IRQ_PIN)); | ||
| } | ||
| } | ||
| // -- END OF FILE -- |
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