Note: The nRF54 architecture was only recently added to Meshtastic and is still in very early experimental development.
The MESHNRF-54L15 is a custom DIY nRF54 development board utilizing the Holyiot-24005-nRF54L15, RP2040-Zero and Seeed WIO-SX1262 LoRa module (on the bottom of the PCB).
The RP2040-Zero acts a debugger/programmer and USB Serial interface for the nRF54L15. This DIY Hardware aims to provide a cheaper alternative to the Seeed LoRa Plus kit and or using a NRF54L15-DK.
https://www.seeedstudio.com/LR2021-LoRa-Plus-Evaluation-kit-915Mhz-US-V2-0-p-6698.html
https://www.digikey.co.za/en/products/detail/nordic-semiconductor-asa/NRF54L15-DK/25601516
awating new revision board after DIO1 was moved to pin 2
PCB's from JLCPCB was received - 2 Layer 50mm x 40 mm - all functions are ok, but board will be revised to move DIO1
using SMD 1206 parts - Resistor, Caps. 3v3 LDO, Buttons, RP2040-Zero, Holyiot-24005, Seeed WIO-SX1262 and some 2.54 Headers
Important
This platform is in an active testing phase. Contributions and debugging help are highly welcome.
| Feature | Status | Notes |
|---|---|---|
| **System Board ** | System boots successfully. | |
| Firmware Flasing | Working via RP2040-Zero or CMSIS-DAP | |
| Button | Working | |
| UART | Working | |
| Bluetooth | Working | |
| LoRa Radio | Working | |
| I2C Display | Working | |
| Stable | Some bugs have been fixed |
- The target is not stable and is currently being investigated under the new nRF54 architecture stack.
If you want to contribute to the development of this project, you can use the following hardware alternatives:
- Dev Board: Holyiot-24009 Development Board
The Holyiot-24009 is a low-power development board featuring the Nordic Semiconductor nRF54L15 system-on-chip (SoC) designed for Internet of Things (IoT) and smart home applications
- Compatible LoRa Radios:
- Waveshare SX1262
- Seeed WIO-SX1262
- Waveshare LR1121
- Hardware Link: Aliexpress Source
For firmware flashing and debugging, you can use a CMSIS-DAP debugger such as:
- Raspberry Pi Debug Probe
- An RP2040 or RP2350 board configured as a debug probe
Development and finding/fixing bugs
| Github name | Link |
|---|---|
| caveman | caveman |
| cvaldes | cvaldes |
| andyshinn | andyshinn |
| sussydevil | sussydevil |
Warning
Use of the resources provided in this repository is entirely at your own risk. I take no responsibility for any hardware damage, malfunctions, or data loss.
If this open-hardware project brings value to you, please consider supporting my design pipeline!
