This is a breakout board for the 30 pin DOIT ESP32 DEVKIT V1 module.

There are 30 header pins for easy hook up to the module since the module on its own is awkward to fit on a breadboard.

There's also some convenient peripherals for quick prototyping including:

• 4 LEDs
• 4 buttons
• 4 pcb copper touch pads
• 4 bi-directional 3.3v to 5v FET level shifters
• 2 op amp circuits

The components aren't directly wired to the ESP32, there are headers so they can be jumpered with Dupont wires as needed, leaving the module pins free to configure.

The level shifters are useful for interfacing with external 5v logic signals and providing 3.3v signals for the ESP32.

The op amps have a potentiometer to adjust the gain as well as a DC bias offset adjustment so the min and max analog signal voltages can be set within the safe limits of the ADC if the op amps are used as analog inputs to the EPS32. They can also be used to buffer outputs from the ESP32.