Experimenting how many #LoRaWAN messages (20 bytes payload that includes battery reading and internal CPU temperature @ SF7) can a SAMD21+RFM95 send on a 2000mAh Li-Polymer battery. Currently at 23392 messages, and battery is at 3.826V (80% full).. aiming at 120K messages. #IoT
Si it died today at 68323 transmission. The battery is 1400mAh, not 2000mAh as I stated originally. Considering it a success 🙂
This is the actual battery discharge pattern, the node was sending at room temperature. There is a strange bounce before it dies out completely..
Oh, and battery is now completely dead – plugging it into the USB charger does nothing.. strange
Playing with fire ..
