ESP32-C3
LoRaWAN Mailbox Alert: ESP32-C3 + RFM95W Battery Powered
Build a battery-powered mailbox alert system using an ESP32-C3 SuperMini and an RFM95W LoRaWAN module. The system sends alerts through ChirpStack to InfluxDB and emails notifications when mail arrives. Powered by a 16340 Li-Ion battery and …