RAK WisBlock 3112
The RAK3112 from RAKwireless is a low-power, long-range WisDuo module based on the Espressif ESP32-S3 MCU with an integrated Semtech SX1262 LoRa transceiver. It supports LoRa, BLE, and Wi-Fi, making it versatile for IoT applications such as home automation, sensor networks, and mesh networks (e.g., Meshtastic/MeshCore). The module offers 16 MB of Flash and 8 MB of PSRAM, a programmable transmit power of up to +22 dBm, and multiple interfaces (UART, I2C, SPI, ADC, GPIO). It ships without standard firmware and is programmed via Arduino, ESP-IDF, or PlatformIO. Two variants are available: one with an MHF4-IPEX antenna connector and one with an RF pinout for a custom antenna.
Hardware Specifications
LoRa Specifications
LoRa Chip
Semtech SX1262
Frequency Band
-
Max. TX Power
22 dBm
Antenna Type
MHF4 IPEX (variantenabhängig) oder RF-Pinout für Custom-Antenne
Connectivity
WiFi
true
Bluetooth
true
GPS
false
Power
USB Type
-
Battery Connector
-
Solar Support
false
Power Consumption (Idle)
-
Power Consumption (TX)
-
Firmware Support
Release notes: https://blog.meshcore.io/2026/08/14/release-1-17-1
Release notes: https://blog.meshcore.io/2026/08/14/release-1-17-1
Release notes: https://blog.meshcore.io/2026/08/14/release-1-17-1
Release notes: https://blog.meshcore.io/2026/08/14/release-1-17-1
⚠️ Check that radio.rxgain(on) and flood.advert.base (0.308) are set correctly after flashing! ⚠️
This build is based on official MeshCore 1.15.0 dev branch (as of 25-May-2026 and additionally includes the following unmerged upstream PRs/changes:
- PR2553: Limit flood advert packet forwarding -->
set flood.advert.base 0...1(0: no flood adv. forwarding, 0.308: default, 1: all flood adv. forwarding) - PR1810: Allow direct message paths when denyf * is set
- :new: PR1727: Use hardware channel activity detection for checking interference --> Use
set int.thresh 1to activate hw based channel activity detection. - :new: PR2377: Disable NRF52 undervoltage bootlock feature
- Flood adverts are disabled (flood.advert.interval set to 0) by default
- :new: modified PR1810 to not block flood adverts but only
PAYLOADTYPEGRPTXTandPAYLOADTYPEGRPDATAso that some limited flood advert distribution can be managed via PR2553 to support e.g. observer maps.
- Based on
devv1.15.0 as of 25-May-2026
Full Changelog: https://github.com/MichTronics/MeshCoreNG/compare/bridge-tcp-v1.0.5...repeater-v1.0.1
Full Changelog: https://github.com/MichTronics/MeshCoreNG/compare/bridge-tcp-v1.0.5...companion-v1.0.1
Full Changelog: https://github.com/MichTronics/MeshCoreNG/compare/bridge-tcp-v1.0.5...companion-v1.0.1
Full Changelog: https://github.com/MichTronics/MeshCoreNG/compare/bridge-tcp-v1.0.5...room-server-v1.0.1
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