ESP32 · LoRa · MeshCore
Small boards, long battery life, honest notes.
Build notes, free guides and calculators for off-grid mesh nodes and battery-powered sensors. Kits and boards are coming soon.
Quick estimate · sleepy ESP32 node
–days
Assumes 120 mA for 8 s per wake and 80% usable capacity. Open the full calculator →
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Latest notes
ESP32 · MicroPython20 Sep 2026
Deep sleep and battery monitoring on the ESP32
Reading battery voltage and sleeping properly between readings.
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