#540 ESP-12 DIY Dev Board
Building a programming board for the ESP8266 07/12 variants.
However, it turns out that programming them on a breadboard can be a bit flakey - mainly due to power/connection issues.
So I decided to try a quick build of a programming board to see if performance was more reliable.
The result - excellent. Very reliable programming.
I used a piece of 5x7cm protoboard, with the circuit layed out as follows:
Some quick and dirty soldering..
Final build, on a cardboard base: