ESP8266 Community Forum

- Tue Nov 15, 2016 1:31 pm #58187 Searched exactly for this solution! Unfortunately, it does not work. Any idea where my fault is?

ESP-12f, Arduino IDE 1.6.9, ESP Core 2.3.0. My Sketch:

Code: Select alluint8_t adc_what_I_want = ADC_TOUT;
ADC_MODE(adc_what_I_want);

extern "C" {
  #include "user_interface.h"
}
#define PIN_ADC_PWR 14


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
 
  pinMode(PIN_ADC_PWR,OUTPUT);
  pinMode(A0,INPUT);
  digitalWrite(PIN_ADC_PWR,HIGH);
 
}

void loop() {
  delay(500);
  adc_what_I_want = ADC_TOUT;
  delay(100);
 
  unsigned int val = analogRead(A0);
  delay(100);
  Serial.print("read A0 ");
  Serial.println(val);
  adc_what_I_want = ADC_VCC;
  delay(100);
  float ppp = ESP.getVcc();
  Serial.print("read Vcc ");
  Serial.println(ppp);
}

Ugly, right ?

Well, yeah. But I don't care as long as it works

Thanks & best!

- Thu Jan 25, 2018 7:56 pm #73493 I thing that code
uint8_t adc_what_I_want = ADC_TOUT;
ADC_MODE(adc_what_I_want);
etc..
Was written as assumption, not as tested working solution.

I have thoroughly tested this example by myself and it really doesnt work. the ADC mode is for the whole program run in mode which was the first one set..

Does anybody find a way how to switch those two modes?

- Tue Jan 30, 2018 3:13 pm #73586 Sorry, I stopped trying.

- Tue Jan 30, 2018 9:16 pm #73593

Does anybody find a way how to switch those two modes?

From the reading I have done on the subject it is either one or the other. No option to change.