ESP32 D1 Mini and 2pcs. ADC?
Posted: 27 Dec 2022, 18:50
Hi
sorry maybe stupid question but I´m using my first ESP32 D1 Mini Board and struggeling a lot....
So maybe you can confirm or just disagree that this is ok or what I´m trying
I just want to detect 2pcs. LED with 2pcs. LDR and connect this to 2 ADC of an ESP32. If LED is on or not I have to configure by Rule based on the given input voltage.
So I used a ESP32 D1 Mini from az-delivery looking like this:
Connected the LDR (10kOhm - 26kOhm) to GPIO36 and GPIO26. Each of them has a 10kOhm resistor to GND as voltage devider.
I configured Analog Input dB11 (factory calibration). GPIO 36 seems to work fine but GPIO 26 is always minimum = 0V
Is there sth. special to configure to use this GPIO or do I have carefully to check my wiring?
Thank you very much!
sorry maybe stupid question but I´m using my first ESP32 D1 Mini Board and struggeling a lot....
So maybe you can confirm or just disagree that this is ok or what I´m trying
I just want to detect 2pcs. LED with 2pcs. LDR and connect this to 2 ADC of an ESP32. If LED is on or not I have to configure by Rule based on the given input voltage.
So I used a ESP32 D1 Mini from az-delivery looking like this:
Connected the LDR (10kOhm - 26kOhm) to GPIO36 and GPIO26. Each of them has a 10kOhm resistor to GND as voltage devider.
I configured Analog Input dB11 (factory calibration). GPIO 36 seems to work fine but GPIO 26 is always minimum = 0V
Is there sth. special to configure to use this GPIO or do I have carefully to check my wiring?
Thank you very much!