How to get battery volt / percentage message send to mqtt?

[gohan]

it looks as the analogread keeps returning zero

[Mr_sensor]

@gohan Tried to find out what causing that but can not figure it out. I'm bot a real coderer so its trial and error :) and trying to understand form other sketches / posts. Any idea where to look for?

[gohan]

try adding a delay(500) before the analogread

[Mr_sensor]

@gohan said in How to get battery volt / percentage message send to mqtt?:

delay(500)

Hi, tried that (already tried it with wait). Now I added it here:

delay(500);
    int sensorValue = analogRead(BATTERY_SENSE_PIN);

Also tried it here:

 if (oldBatteryPcnt != batteryPcnt) {
        // Power up radio after sleep
        delay(500);       
        sendBatteryLevel(batteryPcnt);
        oldBatteryPcnt = batteryPcnt;
    } 
                                                                                                                                                                      
  sleep(SLEEP_TIME); //sleep a bit  ```

Both did not help still ending up with 0 . 
So what should be the best place the right place to put the delay?

[gohan]

the second one is useless. It is odd that it misses the analog reads. What AVR boards version are you using?

[Mr_sensor]

@gohan I'm using the EasyPCB board with an arduino pro mini 3,3v

[gohan]

I mean in Arduino IDE library manager

[Mr_sensor]

@gohan

Arduino Pro or Pro Mini
Programmer AVR ISP
ATmega328P (3,3v 8mhz)

[Mr_sensor]

Still not getting it working! Any thoughts on this?

[gohan]

Try a simple example sketch that reads the analog pin just to make sure the hardware is OK, or try another pro mini

[Mr_sensor]

@gohan Ok will try that see if I made a fault somewhere