ArduinoCore-stm32l0
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Strange thing with analogWrite
I got 2 led connected to A3 and A2 as Follow
When I drive LED with DigitalWrite no issue but as soon as I use AnalogWrite got issue Here my so complex code
void setup()
{
}
void loop()
{
// Full Led Green ON
analogWrite(LED_GRN, 0);
delay(500);
// Full Led Green OFF
analogWrite(LED_GRN, 255);
delay(1000);
// Full Led Blue ON
analogWrite(LED_BLU, 0);
delay(500);
// Full Led Blue OFF
analogWrite(LED_BLU, 255);
delay(1000);
}
When I set AnalogWrite to 255 to light off the Led the led does not go off, I mean it goes far lower light level but does not goes off, likes the PWM was not totally 100% High level
I tried adding in setup analogWriteResolution(255);
but still no changes
The only way I got it working is to set back pin to digital mode as follow
analogWrite(LED_BLU, 0);
delay(500);
pinMode(LED_BLU, OUTPUT);
digitalWrite(LED_BLU, HIGH);
delay(1000);
Any Idea what I'm doing wrong ?
Self Answer analogWrite(LED_BLU, 256);
does the trick. So use 256 not 255 as Arduino.
Guess that is a bug. 0 and 255 (or whatever the boundaries) should turn the output to a constant 0 or 1.