The development board is a circuit board for embedded system development, including a series of hardware components such as a central processing unit, memory, input device, output device, Datapath/bus, and external resource interface. The development board is for beginners to understand and learn the hardware and software of the system. At the same time, some development boards also provide a basic Integrated development environment, software source code, and hardware schematic diagram. Common development boards include 51, ARM, FPGA, and DSP development boards.

Both interfaces of the ESP-Prog can be powered by 5V or 3.3V through the Pin Header, which has strong power compatibility. The ESP-Prog can be connected to the user board using cables, and the connector can choose 2.54 mm and 1.27 mm spacing. The connectors for Program (6-Pin) and JTAG (10-Pin) need to be placed in the corresponding order on the user board. ESP Prog is simple and convenient to use and can be connected to a computer with just one USB cable. The computer can recognize the two ports corresponding to the download function and JTAG function. The automatic firmware download and serial communication function are applicable to the ESP8266 and ESP32, while the JTAG online debugging function is applicable to the ESP32. ESP Prog is a development Debugger, which has the functions of automatically downloading firmware, serial communication, JTAG online debugging, etc.