Recently I am trying to build a Ni-MH battery charger with ESP32, more specifically using an ESP32-DevKitC board with a Rev1 chip. I used the ADC1 to monitor the battery voltage and logged it on a computer. The code is derived from the adc example code included in esp-idf. To my surprise, I discover...

Hello, I have just got an ESP32s2 dev board, and trying to port an old ESP32 project which uses I2S0 PDM tx mode (which is essentially a free 16-bit single channel delta-sigma DAC :) ) to play audio. I was thinking that the I2S on ESP32s2 is similar to the I2S0 on ESP32, however, I soon realized tha...