Hi @PJ_Glasso
Can you share how you are powering the device with a coin battery? It operates, but draws a high current. 450-480 uA.
The battery connection on the back doesn’t look appropriate for a non-rechargeable coin battery, and the high current draw is seen if powered at < 3.3V on the 3V3 pin.
Can you share a link to the dev coarse? My search didn’t turn up something obvious.