Links

https://map.meshnet.si

Flashing

DFU

Double click reset button (RAK on the bottom with a toothpick, T114 lower button) while the device is ON. Nothing changes on the display (RAK), T114 shows DFU and you can upgrade.

Same for Heltec.

Firmware download

https://flasher.meshtastic.org/

Device

• Nordic Semiconductors RAK WisBlock 4631
• Heltec Mesh Node T114

Firmware

• Latest Flash
• Download *.uf2 and save it to device in DFU mode

Heltec T114

• Reset Button (bottom):

  • Single press: Resets the device.
  • Double press: Enter DFU mode

• User/Program Button (top):

  • Long press: Will signal the device to shutdown (deep sleep) after 5 seconds.
  • Single press: Changes the information page displayed on the device’s screen.
  • Double press: Sends an adhoc ping of the device’s position to the network.
  • Triple press: Enables/Disables the GPS Module on demand. If an NPN Transistor is added it will cut power to the GPS board. The NPN pin must be configured on the PIN_GPS_EN inside the Position module in the App for this switching to work.

Parts

• Battery 1000mAh Li-Poly 9.75€
• Antenna Gizont 868MHz SMA M, CN 10.50€
• Meshtastic Nordic nRF52840 (GPS, CASE, ANTENNA) 46.37€