So, yet another frustrating issue…
I have a couple of the WiFi_LoRa_32_V2 boards that I set up a few years back and then forgot about. I’m now trying to use them again, point to point. One of the boards booted fine and showed “sending” just fine. The other board did nothing, so I figured I needed to re-flash the code. In doing that I had to jump thru all kinds of hoops to update the Arduino IDE for the older boards to work. I was eventually able to load and run the WIFI_LoRa_32_V2_FactoryTest sketch, and the board looked fine.
I then loaded the OLED_LoRa_Sender and OLED_LoRa_Receive sketches and that failed miserably. I figured that was probably due to some libraries that have changed and I was tired of screwing around and decided to simply flash the simpler LoRa_Sender and LoRa_Receiver code to the two devices.
When I boot the sender device I don’t see anything as the code doesn’t push anything to the OLED and doesn’t toggle a LED, but I assumed it was working.
I then connected the receiver device to my MacBook to monitor things using the serial monitor…
I get…
Please provide a correct license! For more information:
14:47:20.155 -> http://www.heltec.cn/search/
14:47:20.155 -> ESP32ChipID=XXXX75334FC4
That’s not very satisfactory… So I went to the URL and searched and found the licenses keys for both of the devices.
But, of course, there’s no documentation that I can find on how to PUT THE DANG KEY in the code or flash them to the two devices.
I’ve tried the AT+CDKEY=12345678123456781234567812345678 command in the serial monitor and it does nothing.
So, can someone please help me get these two dang devices working again before I take a hammer to them and buy something else? The GitHub instructions don’t help. And the links on the Heltec site on how to use the V2 versions are dead 404 URLs.