ESP8266 Oled Display
Submitted this design for the Hackaday 1" Board challenge. The hardware is an ESP-01 ESP8266 Wifi module, linear power supply, microUSB connector and a few oled display parts.
Grab the PCB here: https://oshpark.com/shared_projects/tiyMX4KW
Grab the code here: https://github.com/mike-rankin/ESP8266_OLED_Display
See the Assembly steps here: https://0miker0.wordpress.com/microusb-powered-esp8266-oled-board/