ESP-07/ESP-12 adapter

ESP-07 and ESP-12 modules are a little awkward to work with because the hole spacings are 2mm instead of breadboard friendly 2.54mm. You can buy breakout boards to help. I have some but the ones I have are so wide that in a normal breadboard they go into the outermost row of pins.

This adapter is more narrow so on the breadboard it leaves 2 holes on one side and 3 on the other. It works best with male-male pin headers with long pins on each side like in the 4th photo.

Update: Added photo of it in the breadboard as a programmer. Also in the breadboard was a ds18b20 temperature sensor. The socket seems to work fine for me without soldering.