We have developed an Atmega328p based Kit. We want to read some analog sensor values in the application. But analog readings always returns 1023. Even If we connect GND pin with analog pin, it gives 1023.
Here the schematic diagram has been attached.
We tried with both Arduino analogRead() function and microc function adc_Read(). Both adc reading always returns 1023.
We have also followed these Q&As below:
But no luck yet.
Is there any bugs in our schematic?
Your suggestions and helps are appreciated.
Thanks in advance.