With this line you get 4095 when you connect 3.3V (assuming ideal conditions)
Code: Select all
adc1_config_channel_atten(ADC1_CHANNEL_0, ADC_ATTEN_DB_0); <---- ADC_ATTEN_DB_0
Code: Select all
adc1_config_channel_atten(ADC1_CHANNEL_0, ADC_ATTEN_DB_0); <---- ADC_ATTEN_DB_0