https://hackaday.io/project/20944-esp-12-esp8266-pogo-jig/
ESP-12 (ESP8266) Pogo Jig | Hackaday.io
Cheapo ESP-12 adapters turned into a Pogo Jig of Awesomeness!
esp 12esp8266pogojighackaday
https://www.instructables.com/Programming-the-ESP8266MOD-ESP-12-Module-Using-the/
Program/Flash the ESP8266MOD ESP-12 Module Using the Witty Board and Arduino IDE : 6 Steps -...
Program/Flash the ESP8266MOD ESP-12 Module Using the Witty Board and Arduino IDE: This Instructable will guide you through the process of wiring, configuring...