Hello guys!
I make a project in which i use two analog sensors. A pulse sensor and the LM35 temperature sensor. When i use them separated everything is normal. when i combine them the lm35 is not precise, has an error margin of about 10 degrees but the pulse sensor seems to be ok. I read something about the analog to digital convertor that Arduino have and need a delay or something to trick the ADC.
I would be grateful if somebody help me to modify the code.
I leave the code below.
Thank you ver much!
pulse_sensor_with_lcd.ino (9.98 KB)