Programmer for ESP-12 & ESP-03 modules

thingiverse

This project allows easy programming of widely used ESP-12 modules, as well as their smaller counterparts, the ESP-03 modules. The ESP-12 module is commonly found on WeMOS D1 and NodeMCU boards. By using Pogo pins, these modules can be programmed without any need to solder pin headers. The project box holds an AVR ISP programming board set to 3.3V, enabling connection to a PC via a USB cable. The module can be programmed as a "Generic ESP8266 Module" through the Arduino IDE. When using this programmer, ESP-12 or ESP-03 modules will always be in programming mode with GPIO0 held LOW. The Pogo pins used are P75-B1 1.02mm spear ends. However, these pins are very fragile and can bend easily. To assemble the board, use the Toner method with Eagle files provided. Apply solder paste, heat with a hot air gun, and carefully solder each pin one at a time using tweezers. It's recommended to start with one side first and measure the placement of the pins on the other side based on desired pressure levels. Too much pressure can make it difficult to insert the module. An updated version of this project is available on Hackster.io, offering improved functionality, including support for both programming and run modes. Additionally, this updated kit makes GPIO pins accessible via a simple header, allowing easy connection to a breadboard.