RAK WisBlock / WisMesh (RAK 4631)
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RAKwireless WisBlock Core module pairing an nRF52840 MCU with an SX1262 LoRa transceiver (RAK4630 stamp), designed to plug into a WisBlock base board (RAK5005-O / RAK19007). BLE 5.0, 22 dBm LoRa output, and 2.0 µA sleep current. The basis of the RAK WisMesh Base, WisMesh Tap, and Meshtastic Starter Kit.
~$18 approx (2026-06)
References: mesh-sn.de ↗
- MCU
- nRF52840
- Radio
- SX1262
- Display
- None
- GPS
- None
- Battery
- External
- Connectivity
- USB, BLE
Roles
CompanionRepeaterRoom server
Transports
bleusb
Other models
Compare all 3 →
Hardware
Radio
- Technology
- LORA
- Chip
- Semtech SX1262 ↗
- Band
- EU433 / CN433CN470EU868US915 / AU915
- TX power
- 22 dBm
- TX efficiency
- 1.86 mW/mA
- Antenna
- IPEX-1.0
Processor
- Family
- Nordic nRF52 series ↗
- Model
- Nordic nRF52840 ↗
- Architecture
- ARM Cortex-M4
- Flash
- 1 MB
- RAM
- 256 KB
Battery
- Battery
- External connector
- Built-in
- No
- Charging
- Yes
- Connector
- WisBlock Battery Connector
Solar
- Solar charging
- Supported
Physical
Connectivity
- USB
- Micro-USB
- USB modes
- Power, Serial, Flashing
- Bluetooth
- BLE 5.0
- Wi-Fi
- None
Firmware support
| Firmware | Type | Target | Status | Notes |
|---|---|---|---|---|
| MeshCore (Reference) | Reference | rak4631 | ✓ Supported | |
| EasySkyMesh | Fork | — | ✓ Supported | |
| ZephCore | Custom | — | ✓ Supported | |
| MeshCore Low-Power | Fork | — | ✓ Supported | Uses RAK19003 base board for power profiling. |
| LusoFW | Fork | rak4631 | ✓ Supported | |
| MeshCoreNG | Fork | rak4631 | ✓ Supported | |
| MeshCore-Evo | Fork | — | ✓ Supported |
3D-printed enclosures
Full housings you can print yourself
429RAK19007/RAK5005 case for Meshtastic by TonyG Printables ↗
54Batpack - Case for RAK 19007 Meshtastic Kit by Andy F Printables ↗
31Snap Fit MagSafe Meshtastic Case for RAK 19007 by garthvh Printables ↗
30MTK Pocket Case for Meshtastic by BenP Printables ↗
19Case for RAK Wireless 19007 Meshtastic board by MeshtasticCmoi Printables ↗
Hermes External Solar Node Enclosure for RAK and Heltec by zerofox3D Printables ↗
MagSafe LoRa Radio Case - Meshtastic/MeshCore by shreyashgupta Printables ↗
MagSafe Meshtastic/MeshCore Case for RAK WisBlock Mini by Alec P Printables ↗
Trace - Tracker Case for WisBlock 19007 / RAK 4631 by MadeBySaints Printables ↗