Heltec Cube Cell Product is a great product using ASR65001/2 with SX1262.
I have now been using the product for a few weeks. I have found a number of issues and produced a guide for the people on how to use it and some of the pitfalls to ensure you can get an operational LoRaWAN node. I use the product on TTN so I need to have working LoRaWAN Scripts and not just Sensor code onthe CubeCell
This is not a Vendor guide and I recommend that you the Heltec ones on this site .
This document is located in my GitHub https://github.com/Securethingsuk/Heltec_CubeCell and I have added some “Working” sketches for LoRaWAN_BME280.
I would also like to comment regarding sleep current. The best I have obtained is around 20 μA not the initial 3.5 μA which as Heltec have stated only occurs in some special conditions on a 3.3v VDD connection in deep sleep mode.
The Board manager need to have a file updated, if you want to use the BMP/BME range of sensors as define by Raystream ( I waiting for a 0.0.4 Board manager .There are other issues such as: -Vext power line settle time, -TX output power, -Antennas, -AT Commands, -Key programming.
I will update as needed as time goes on and I am happy to receive other views and comments and if anyone gets LoRaWAN Solution with other sensors working that are not In Heltec Github, then happy to have them uploaded to my site .
I hope this helps those that have CubeCell Products or considering buying one.