Beyond the 3D printed holder for the pogo pins, this programmer uses a FTDI USB-to-serial adapter, a couple passive components to smooth out the power going into the chip, and a couple buttons.

I’m a big fan of the ESP-01 Wi-Fi modules. Because I’ve done a couple of Wi-Fi projects, rather than fiddle with pin headers and jumper wires while programming, I decided to get one of those generic ...

This flasher also connects the ESP8266 to a network and uploads firmware. It’s a stripped-down programmer without a serial terminal or the ability to toggle pins, but there are plans for making ...