LoRa Trough 8 Floors – Using 100 mA

My student Tatu Erkinjuntti sent LoRa radio transmissions. His device can send messages trough eight concrete floors with minimal power consumption.

He is using ESP32 with an external LoRa module, programmed with Arduino IDE. Power consumption during transmission is just 100 mA at 7.5 V. By using deep sleep between transmissions, Tatu can use even less power. He is also making a water resistant enclosure and testing batteries for use in sub-zero temperatures.
Photo courtesy of Tatu Erkinjuntti, LoRa Tocsin project.

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