ESP8266 Community Forum

- Tue Jun 16, 2015 2:21 pm #20613 I have found core_esp8266_wiring_analog.c which describes the analogRead-function... but how do I use the other function to correct the error??

- Tue Jun 16, 2015 3:08 pm #20615 The analog read function has been tweaked in Arduino IDE here
https://github.com/esp8266/Arduino/commit/09bb75874deb95c22b4c09e63b842fc1f89eebc3

I think this may be the reason why my ESP8266 ADC pin can read to supply voltage . So much for the 1V supporters . Better move yourself to Arduino IDE

Get you modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Wed Jun 17, 2015 2:27 am #20662

The analog read function has been tweaked in Arduino IDE here
https://github.com/esp8266/Arduino/commit/09bb75874deb95c22b4c09e63b842fc1f89eebc3

I think this may be the reason why my ESP8266 ADC pin can read to supply voltage . So much for the 1V supporters . Better move yourself to Arduino IDE

Not at all. They just replaced doing stuff themselves with a SDK library method.
I took a short look at it but found it as complicated as the original arduino code and didn't tried to understand it.
You can use that SDK function easily yourself.

Cal

Get your modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Sat Jun 20, 2015 11:51 am #21031 Sorry for the long time to answer. Here are my promised solution to get reliable analog read values from an LDR.

Code: Select allextern "C" {
#include "user_interface.h"
}

uint LDR_Value = 0; //Value of LDR (ADC)

LDR_Value=system_adc_read();


Code is only the fragments you need. Not a running program. But with this, I get reliable values from the ADC. Arduino IDE is 1.6.4.

Greetz, Bernd