2.2 KB • ⤓ Micron 2.2 KB • ⤓ HTML 14.5 KB

The fakeTec is a PCB that connects a Pro Micro-compatible microcontroller board to a LoRa module, and has the same form factor as the Heltec V2, V3, and V4 development boards. It is compatible with the HT-RA62 LoRa module, and any other module with that same pinout. There are also variants designed for the EByte E22 and E220-series LoRa modules.

• Firmware

• Bootloader

• References

• External links

The fakeTec is supported by Nickie Deuxyeux's fork of the RNode firmware.cite-ref-1[1] It can be flashed using the RNS Moscow flasher.

The OTAFIX bootloader can be flashed to the Pro Micro to enable OTA firmware updates. This allows for the board's firmware to be updated over Bluetooth, which is especially useful when updating solar nodes in hard-to-reach places. However, for this feature to be useful, the firmware must provide a way to remotely put the board into device firmware upgrade (DFU) mode. Entering DFU mode normally requires physical access to the device.

cite-note-11. ↑ "deuxyeux/RNode_Firmware".

• GitHub Repository

Developer: gargomoma

MCU: nRF52840

CPU: Cortex-M4 @ 64 MHz

Memory: 256 kB SRAM 1 MB Flash

Power source: 5 V USB Type-C 3.7 V Li-ion Battery

Transceiver IC: nRF52840

PHY modes: 2M, Coded

Output power: 8 dBm (6 mW)

Sensitivity: -95 dBm @ 1 Mbps

Antenna type: Typically SMD Ceramic

Transceiver IC: SX1262

PHY modes: FSK, LoRa, LR-FHSS

Frequency range: 433–510 MHz or 863–928 MHz

Output power: 21 dBm (125 mW)

Sensitivity: -139 dBm @ SF12 BW 125 KHz

Antenna type: External u.FL