Blynk Message Broker board evolution: from breadboard to prototype shield to AutoDesk EAGLE PCB layout. Could not find a board definition layout for the HelTec Wifi Kit 8 board anywhere on the Internet (it’s too new), so I improvised. Just take the standard layout for an Arduino NANO board and use it instead. There are fewer pins used, but otherwise they have the same pin layout, pin size, pin spacing, etc. I just relabeled the original pins to match the HelTec board. Hopefully, an Eagle part definition for the Heltec WiFi Kit 8 board will become available soon and I can use it next time instead of the hacked NANO layout and pinout definitions again.
