LoRa Standalone Sensor Network ~45 µA Node with radio.sleep and deep sleep

[Tech500]

"LoRa BME280 Sensor Network" a collaboration between Anthropic's Claude and William Lucid.

LoRa BME280 Sensor Network Dashboard

Project developed and tested with two, "Ebyte" EoRa-S3-900TB Development Boards; one for Gateway and one for Node. One 74HC04 for each node to reroute the Lora DIO1 signal to a wake capable GPIO_RTC pin. One BME280 for each node. Other LoRa development boards may work; code modification left to hardware owners. Project supports multiple nodes.

Sensor reading interval 15 minutes; only 3.17 seconds of 115 mA current drain. Duty cycle 1.4% active, 98.6% Sleep.

Lora radio.sleep --duty-cycle

Project files

William

[Tech500]

Reconfirmed node current consumptions and added a couple more observations from the Nordic Power Profiler Kit II:

Nordic Power Profiler Kit II Observations

William