erropix / esp32_analogwrite Goto Github PK

#include <Arduino.h>
#include <analogWrite.h>

int brightStep = 1;
int brightness = 0;
uint8_t ledR = 34;
uint8_t ledG = 35;
uint8_t ledB = 32;
uint8_t ledW = 33;

void setup()
{

  // Set resolution for a specific pin
  analogWriteResolution(ledR, 12);
  analogWriteResolution(ledG, 12);
  analogWriteResolution(ledB, 12);
  analogWriteResolution(ledW, 12);

  analogWrite(ledR, 255);
  analogWrite(ledG, 255);  
  analogWrite(ledB, 255);
  analogWrite(ledW, 255);
 
}

void loop() {}

This outputs
ledR = 0 = GPIO34
ledG = 0 = GPIO35
ledB = 1.6 V = GPIO32
ledW = 1.6 V = GPIO33

Why?

Your fade example on the main page is defining "step", but the variable being used is called 'brightStep'. The example in the "examples' folder is correct - but if someone just does a simple cut-n-paste of the code as shown on the main page it will not compile.

I was working nearly half day to pinpoint why some of the my esp32 pins not working. when changing analogwrite to digital it suddenly start working. I think those pins dont support pwm.

Have you tried asking Arduino for adding to index? If not, could I ask?

Which license covers this library? I'd be glad for MIT, because I reused your example for testing with Travis and I'd like it to stay as example (Our library is licensed under MIT and I would have to write my own library otherwise).

the esp can't execute the code when I use the analogWrite function, it always sends NULL characters like in the snapshot.

Hi,
thanks for the great pojekt.
There is a little mistake in the readme. Under the point PWM Frequency you mixt the function names analogWriteFrequency and analogWriteResolution:)

Lucas

I thought the esp32 can use almost all pins for PWM but I made a program that needs 9 pins to analogWrite to. What pins can I use for this? Some are not working. I am using the WiFi library.

I just download and copy your library to ESP32 arduino library folder. like this : C:\Users\Administrator\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.1\libraries

But I can't find it in Arduino IDE. I really want to use this library. So can you tell me how to install your library? Thank you so much.