[Discover the problem is being changed, do not use it for the time being] ESP32 development board

introduce

This is a development board with the same functions as "ESP32 Dev Module".

Features:

It has rounded corners, does not scratch your hands, and has 3mm fixing holes;

Can be used on a breadboard;

Using CH340C as a USB to serial port chip saves money and is stable;

DC-DC is used as the power supply, with a wide input voltage range (VIN) and protection components (VIN input voltage range: 3V~24V, the maximum input current is about 1A, the maximum 5V output is 2A; USB must input 5V) ;

The LED lamp is mounted upside down on the back and has a window on the front to display the working status. The appearance is greatly enhanced. The solder pad between the two lamps is used to reduce cross-light.

picture

I encountered a problem with the new version, please ask for help

I changed the original structure of 3608 to sepic to realize automatic voltage boosting and bucking, but there is no normal output. Please help me find the fault.