Hardware
We have three boards for sale at the camp. You brought your own hardware? Skip this section and move on to the → Flasher.
Make sure your hardware supports the 868 MHz ISM band - in Germany, at 500 mW.
Heltec V4
Pick this if: you want the cheap, hackable dev board with a screen and don't mind adding a battery.
ESP32-S3 + SX1262 · 0.96″ OLED · USB-C · Wi-Fi + BLE · 863-928 MHz (868 EU) · 28 dBm high-power variant.
Spec: heltec.org →
Seeed T1000-E
Pick this if: you want a sealed, card-sized tracker with GPS and battery - pocket it and go.
nRF52840 + LR1110 · GNSS · no screen (phone-configured) · 85×55×6.5 mm · IP65 · 700 mAh · BLE 5.0 · 863-928 MHz.
Spec: seeedstudio.com →
Elecrow ThinkNode M1
Pick this if: you want a ready-to-use handheld with a sunlight-readable e-paper screen, GPS and battery.
nRF52840 + SX1262 · GPS · 1.54″ e-paper · 1200 mAh · BLE · 868/915 MHz · detachable external SMA antenna · enclosure included.
Spec: elecrow.com →
The first 50 Heltec v4 devices picked up receive a free 3D printed case and external antenna.
Brought your own device? Go to → Flasher.