I have a lot of idle 8266ex on hand, but there is actually not that much demand for miniaturization. In the end, I found that it is more convenient to solder them all into 12f at once.
This is also the reason why manufacturers produce modules, so they made this esp12F version, tested it for normal use, and is compatible with genuine 12F pads.
Since half-holes cost extra money, we designed them as full-holes, which does not affect use and can also be fixed by welding with pins.
Note: This board is compatible with 8285, so the 8285 chip pad used can actually be used with both 8285 and 8266.
There is no schematic diagram, just refer to the original schematic diagram (there are some differences but it does not affect the use). For actual use, just follow 12F (version with indicator light).
1. Blank board
2. What it looks like after welding
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