Leo Gaggl1d ago

Off-grid comms has always forced a choice: sub-GHz bands for range, or compromise for throughput. 2.4 GHz LoRa is breaking that trade-off open.

GrayHatGuy has proven MeshCore runs on 2.4 GHz — and built the bridges that connect it back to sub-GHz backbones when you need the long hop.

New post: protocol bridges, channel bridges, frequency bridges, and why the difference matters.

https://gaggl.com/blogs/2026-06-03-lpwan-meshes-2-4ghz-and-the-rise-of-mesh-bridges/

#LoRa #MeshNetworks #MeshCore #LPWAN #OffGrid #CommunityComms

LPWAN Meshes: 2.4GHz and the Rise of the Mesh-Bridge

If you have spent any time in the off-grid radio scene over the last few years, you know the frequency divisions. You either ran on the sub-GHz bands (915 MHz in Australia and the Americas, 868 MHz in Europe) for long-range, bush-penetrating reliability, or you accepted the high-congestion limits of local Wi-Fi. It was a trade-off we took for granted. If you wanted to send a message across 10 km of dense stringybark, you needed the long waves. If you wanted global hardware standardisation, you looked elsewhere.

Digital Nomad
Digital Nomad2d ago

LPWAN Meshes: 2.4GHz and the Rise of the Mesh-Bridge

If you have spent any time in the off-grid radio scene over the last few years, you know the frequency divisions. You either ran on the sub-GHz bands (915 MHz in Australia and the Americas, 868 MHz in Europe) for long-range, bush-penetrating reliability, or you accepted the high-congestion limits of local Wi-Fi. It was a trade-off we took for granted. If you wanted to send a message across 10 km of dense stringybark, you needed the long waves. If you wanted global hardware standardisation, you looked elsewhere.

https://fed.brid.gy/r/https://gaggl.com/blogs/2026-06-03-lpwan-meshes-2-4ghz-and-the-rise-of-mesh-bridges/

LPWAN Meshes: 2.4GHz and the Rise of the Mesh-Bridge

If you have spent any time in the off-grid radio scene over the last few years, you know the frequency divisions. You either ran on the sub-GHz bands (915 MHz in Australia and the Americas, 868 MHz in Europe) for long-range, bush-penetrating reliability, or you accepted the high-congestion limits of local Wi-Fi. It was a trade-off we took for granted. If you wanted to send a message across 10 km of dense stringybark, you needed the long waves. If you wanted global hardware standardisation, you looked elsewhere.

Digital Nomad
cnx-software.com [Unofficial]2d ago

Morse Micro MM8108-M20 high-power Wi-Fi HaLow module delivers up to 28.5 dBm Tx output power

https://fed.brid.gy/r/https://www.cnx-software.com/2026/06/03/morse-micro-mm8108-m20-high-power-wi-fi-halow-module-delivers-up-to-28-5-dbm-tx-output-power/

Morse Micro MM8108-M20 high-power Wi-Fi HaLow module delivers up to 28.5 dBm Tx output power

Morse Micro MM8108-M20 is a high-power Wi-Fi HaLow module based on the MM8108 SoC and a high-power amplifier delivering up to 28.5 dBm transmit output power, alongside a surface acoustic wave (SAW) filter tuned for the 902-928 MHz band of the North American market. Other MM8108 modules, such as the Quectel FGH200M Wi-Fi HaLow module, are limited to 26 dBm Tx power, but US and Canada regulations enable higher power transmissions, and by extension longer range. The obvious downside of the MM8108-M20 is that it might be outright illegal or may require a special license in other countries. Morse Micro MM8108-M20 specifications: SoC – Morse Micro MM8108 32-bit RISC-V Host Applications Processor (HAP) Standard – IEEE802.11ah Wi-Fi HaLow Frequency band – 850-950 MHz (Worldwide sub-1 GHz license-exempt range) Operating Modes – Access Point (AP) and Station (STA) Channel Width – 1/2/4/8 MHz Modulation – BPSK, QPSK, 16QAM, 64QAM, 256QAM. Data rate

CNX Software - Embedded Systems News
Leo GagglMay 23

After years of hands-on testing — from early Meshtastic nodes to running Reticulum across remote South Australian properties — I've learned that choosing off-grid mesh networking technology isn't purely technical. It's philosophical. LPWAN series: a detailed, honest comparison of Meshtastic, MeshCore, Reticulum, and ClusterDuck Protocol, born from failed experiments and the occasional moment of genuine excitement when a packet hops across several kilometres of Australian bush.

https://gaggl.com/blogs/2026-02-04-lpwan-meshes-choosing-the-right-technology/

#LPWAN #LoRa #Meshtastic #Reticulum #IoT #MeshNetworks

LPWAN Meshes: Choosing the Right Technology

Long-range Sub-GHz wireless mesh networks have become essential for modern communication, particularly in remote areas where traditional infrastructure is impractical or impossible. By utilising lower frequencies (typically below 1 GHz), Sub-GHz networks can achieve remarkable range, low power consumption, and the ability to penetrate obstacles such as buildings and dense forests. These characteristics make Sub-GHz mesh networks ideal for applications in IoT, outdoor communication, emergency response, and industrial networks. But with numerous technologies now available, choosing the right one for your needs can be challenging.

Digital Nomad
cnx-software.com [Unofficial]Apr 30

M5Stack Cardputer goes off-grid with new Mesh Kit featuring LoRa, GNSS, and Meshtastic support

https://fed.brid.gy/r/https://www.cnx-software.com/2026/04/30/m5stack-cardputer-goes-off-grid-with-new-mesh-kit-featuring-lora-gnss-and-meshtastic-support/

M5Stack Cardputer goes off-grid with new Mesh Kit featuring LoRa, GNSS, and Meshtastic support

M5Stack has just launched the Cardputer Mesh Kit, a portable, card-sized Meshtastic communication terminal built around the ESP32-S3-powered Cardputer-Adv controller and a new LoRa expansion module (CapLoRa-1262). The kit is essentially a modular upgrade to the original Cardputer, where the base unit handles the UI via a 56-key keyboard and a 1.14-inch LCD. The added "Cap" module adds a Semtech SX1262 transceiver and an AT6668 GNSS module, allowing for off-grid text messaging and GPS location tracking without relying on cellular networks. Cardputer Mesh Kit specifications: Core Controller (Cardputer-Adv): Wireless MCU module – M5Stack M5Stamp S3A with SoC – Espressif Systems ESP32-S3FN8 CPU Dual-core 32-bit Xtensa LX7 microcontroller with AI vector instructions up to 240MHz RISC-V ULP co-processor Memory – 512KB SRAM Storage – 8MB flash Wireless – 2.4GHz WiFi 4 (802.11b/g/n), Bluetooth 5.0 BLE + Mesh 2.4GHz 3D antenna USB – 1x USB Type-C port Expansion connectors for I/Os such as SPI, I2C,

CNX Software - Embedded Systems News
cnx-software.com [Unofficial]Mar 17

Mini review of the ThinkNode M6 “outdoor solar power for Meshtastic”

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/17/review-thinknode-m6-outdoor-solar-power-for-meshtastic/

Mini review of the ThinkNode M6 “outdoor solar power for Meshtastic”

Elecrow has sent us a solar-powered ThinkNode M6 Meshtastic device for review. Last year, I reviewed the ThinkNode M1 and M2 Meshtastic nodes, and I was a bit disappointed by the point-to-point range in a suburban environment, where I got about 550 meters of range after switching to LONG SLOW mode. Nine months have passed since that review, and there still doesn't seem to be any Meshtastic community in the second-largest city in Thailand, probably because typical Meshtastic terminals are more expensive than entry-level Android smartphones, have limited functionality, and the mobile app is still a mess despite a revamp. Nevertheless, when Elecrow asked me whether I wanted to test the "ThinkNode M6 outdoor solar power for Meshtastic", I thought it might be fun. The main purpose of this mini review is to check the range I get using the M6 as a router between the M1 and M2 nodes.

CNX Software - Embedded Systems News
Digital NomadMar 11

LPWAN Meshes: ClusterDuck Protocol - Purpose-Built for Emergencies

The ClusterDuck Protocol (CDP) was where my mesh networking journey truly began. The story behind Project OWL (Organisation, Whereabouts, and Logistics)—students building emergency communication networks after Hurricane Maria—resonated deeply, highlighting a technology designed not for hobbyists or industry, but for saving lives when infrastructure fails. While I found its concepts “much better thought through” from the outset, the project’s slow pace and patchy hardware support meant my personal involvement never truly moved beyond some initial tinkering.

https://web.brid.gy/r/https://gaggl.com/blogs/2026-03-12-lpwan-meshes-clusterduck-protocol-deep-dive/

LPWAN Meshes: ClusterDuck Protocol - Purpose-Built for Emergencies

The ClusterDuck Protocol (CDP) was where my mesh networking journey truly began. The story behind Project OWL (Organisation, Whereabouts, and Logistics)—students building emergency communication networks after Hurricane Maria—resonated deeply, highlighting a technology designed not for hobbyists or industry, but for saving lives when infrastructure fails. While I found its concepts “much better thought through” from the outset, the project’s slow pace and patchy hardware support meant my personal involvement never truly moved beyond some initial tinkering.

Digital Nomad
cnx-software.com [Unofficial]Mar 4

Upgraded FGH200M Wi-Fi HaLow module features Morse Micro MM8108 SoC, handles up to 8,191 IoT devices

https://fed.brid.gy/r/https://www.cnx-software.com/2026/03/04/upgraded-fgh200m-wi-fi-halow-module-features-morse-micro-mm8108-soc-handles-up-to-8191-iot-devices/

Upgraded FGH200M Wi-Fi HaLow module features Morse Micro MM8108 SoC, handles up to 8,191 IoT devices

Introduced at MWC 2026, Quectel FGH200M Wi-Fi HaLow module, based on Morse Micro MM8108 SoC, is an upgraded version of the previous MM6108-based FGH100M module designed for long-range, low-power IoT connectivity. It operates in the sub-1-GHz band (850–950 MHz), with a range of up to 1 km, and is designed for applications such as smart homes, industrial automation, smart agriculture, smart cities, building automation, warehouses, campuses, and large-area IoT networks. The module operates on 1/2/4/8 MHz channels, with a maximum physical data rate of 43.3 Mbps and a transmit power of 26 dBm, allowing a single access point to theoretically connect up to 8,191 IoT devices. It connects to the host through USB 2.0, SDIO 2.0, or SPI interfaces. The ultra-compact (11.0 × 10.0 × 2.0 mm) LGA package operates in industrial environments with a temperature range of –40°C to +85°C. Quectel FGH200M Specifications: SoC – Morse Micro MM8108 32-bit

CNX Software - Embedded Systems News
cnx-software.com [Unofficial]Feb 16

LR2021 LoRa Plus board combines Semtech LR2021 and Nordic nRF54L15 for high-speed FLRC and LoRa connectivity

https://fed.brid.gy/r/https://www.cnx-software.com/2026/02/16/lr2021-lora-plus-board-combines-semtech-lr2021-and-nordic-nrf54l15-for-high-speed-flrc-and-lora-connectivity/

LR2021 LoRa Plus board combines Semtech LR2021 and Nordic nRF54L15 for high-speed FLRC and LoRa connectivity

Last year, Semtech released the Semtech LR2021 LoRa Plus transceiver chip, designed to address the low data-rate issue associated with LoRa, but surprisingly, they didn't release a development board for the chip. Now, almost a year later, Seeed Studio and Semtech have partnered to introduce the LR2021 LoRa Plus development Kit targeting long-range high-speed LoRa and FLRC applications up to 2.6 Mbps. Not only does the board support LoRa Gen 4 technology, providing Sub-GHz, 2.4 GHz ISM, and S/L-band operation, but a XIAO nRF54L15 board also adds dual-core processing (Arm Cortex-M33 + RISC-V) and supports other short-range protocols, including NFC, Bluetooth LE 6.0, Matter, Thread, and 2.4 GHz proprietary protocols. The development board also features a 0.96-inch 128×64 OLED, three Grove connectors for expansion, a USB Type-C for power, SWD debugging, and two Sub-GHz and 2.4 GHz SMA connectors. It is compatible with Arduino Uno, STM32 Nucleo, and Nordic DK

CNX Software - Embedded Systems News
cnx-software.com [Unofficial]Dec 19

LILYGO T-Echo Plus off-grid LoRa communicator features a climbing hook for hiking, cycling, and remote communication

https://web.brid.gy/r/https://www.cnx-software.com/2025/12/19/lilygo-t-echo-plus-off-grid-lora-communicator-features-a-climbing-hook-for-hiking-cycling-and-remote-communication/

LILYGO T-Echo Plus off-grid LoRa communicator features a climbing hook for hiking, cycling, and remote communication

The LILYGO T-Echo Plus is another off-grid LoRa communicator, similar to Blackout Comms, ThinkNode M2, and Wio Tracker L1 Pro, but it features a metal attachment loop (designed like a climbing hook) for use in hiking, cycling, and off-grid environments. Built around a Nordic Semi nRF52840 MCU, it supports Bluetooth 5, Thread, Zigbee, and 802.15.4. It also adds an SX1262 LoRa transceiver, a 1.54-inch 200×200 SPI E-Paper display, and an L76K GNSS module. Other features include a 6-axis IMU (BHI260AP), a vibration motor, a buzzer, and a larger 2400mAh battery, along with a 1/4-inch mount and a "climbing finger loop" for gear attachment. Additional features include an optional BME280 sensor, Grove expansion, all in a rugged and compact enclosure with a long external antenna for extended LoRa range. LILYGO T-Echo Plus Specifications: SoC – Nordic Semiconductor nRF52840 CPU – 32-bit Arm Cortex-M4F microcontroller @ 64 MHz Memory/Storage – 2 MB Flash,

CNX Software - Embedded Systems News