Meshtastic Heltec V3

The Meshtastic node enclosure is based on the Heltec V3 module with a 18650 Li-ion 3.7V 7400 mWh battery and a battery compartment. A KBB-type switch is used to disconnect the battery, and the enclosure parts are fastened with 2.2*6 self-tapping screws and Pet-G filament.