Description

Universal programmer for ESP8266, ESP32 and others

This USB universal programmer has been designed to be coupled to the USB-TTL converter you see in this figure (it is based on the reliable FTDI FT232 chip). The programmer provides the UART interface to the microcontroller as well as the RESET and BOOT selection signals required for an automatic firmware download (Vcc, TXD, RXD, GND, Reset, Boot).

This programmer is to be used for in-circuit programming of any ESP8266, ESP32, and other devices.

On the bottom of the PCB, a practical 6-way header lets you connect the programmer directly to your system. For any other need single wires can connect the programmer to the board. Last, but not least, It can also be used as a common serial interface.

Schematic and Layout

USB_Programmer_layout.pdf

USB_Programmer_sch.pdf

Aug 29,2023

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Universal programmer for ESP8266, ESP32 and others

2 Layers PCB 29.2 x 41.9 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen

This a universal programmer - firmware downloader - for in-circuit programming of ESP8266, ESP32, and other devices that use UART download.

676

Published: Aug 29,2023

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