- microUSB or 6..12V input
- ATMega328P + ESP8266
- CH340G
Links:
- https://robotdyn.com/uno-wifi-r3-atmega328p-esp8266-32mb-flash-usb-ttl-ch340g-micro-usb.html
- https://arnowelzel.de/arduino-uno-clone-mit-wifi link to AT firmware → https://github.com/espressif/ESP8266_NONOS_SDK/releases
- ESP8266 AT Instruction Set
Notes:
- WiFi performance with just the on-board PCB antenna is terrible. WiFi performance with an external U.FL antenna is slightly better.
- It fails to find my own WiFi network, despite correct country settings. This is really weird.