Now you have a barebones ESP-01 programming adapter ready to work with Arduino IDE. The next step is to start your own experiments with ESP-01. For examples, the Arduino core for ESP8266 comes with ...

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.

[Pete] was building a hot tub controller, using a WEMOS board based on the venerable ESP8266. After assembly, the board was plugged into USB and [Pete] hit the flash button. No dice. Investigation … ...