Teledatics HaloMax Wi-Fi HaLow LGA or M.2 module supports over 1000 clients, have been tested at a 100+km range (Crowdfunding)

Teledatics has launched a crowdfunding campaign for the TD-HALOM HaloMax Wi-Fi HaLow module available in LGA and M.2 form factors for long-range and low-power connectivity, as well as HaLow development boards based on the module and various daughterboards for expansion.

TD-HALOM Wi-FI Halow module
HaloMax TD-HALOM module

The wireless module, powered by Newracom’s NRC7394 SoC, is the product of a collaboration between Newracom and Teledatics. According to Zac Freeman, VP of Marketing & Sales at Newracom, the HaloMax module is “the highest output power Wi-Fi HaLow module available on the market. The Teledatics TD-HALOM module transmits at the highest allowable FCC power output and offers a Maximum Range HaLow solution.”

Earlier this year, Teledatics broke the record for the longest distance for a Wi-Fi HaLow connection using the HaloMax wireless module and TE Connectivity Yagi antennas. Two Raspberry Pi 4 Model B units were able to communicate over a distance of 106km between Mount Greylock and Mount Wachusett in Massachusetts.

Wi-Fi HaLow adoption is steadily growing. Recently, we have seen modules and devices such as the also NRC7394-based AHST7394S, Quectel’s FGH100M, the Vantron HCAM26 IP camera, and the LILYGO T-Halow. We have also covered Teledactic’s Halo TD-XPAH Wi-Fi HaLow development board featuring an AzureWave AW-HM482 module.

TD-HALOM HaloMax module specifications:

  • Newracom NRC7394 Wi-Fi Halow Arm Cortex-M3 microcontroller
  • Frequency Range – 902 to 928 MHz
  • Operation Modes – AP, station-client, and 802.11s mesh
  • Max Throughput – 15 Mbps
  • Expansion – SPI, USB, UART
  • Onboard u.FL IPEX connector for external antenna
  • Power
    • Max Power Output: Up to 30 dBm (1 Watt)
    • Low Power Mode: 3.5mA
  • Dimensions – 13.5 x 18 x 2.4mm

The HaloMax module targets Internet of Things and long-range communications and can find applications in smart agriculture, industrial control, drone, rover telemetry, and HAM radio, including the AREDN network.

TD-WRLS development board
HaloMax TD-WRLS development board

Teledatics offers an M.2 2230 network card with the HaloMax module onboard and provides different Wi-Fi HaLow development boards such as the TD-WRLS M.2 Development Platform (compatible with the Raspberry Pi 5) and the TD-TLM1 HaloMax Drone Telemetry board that can be used for real-time drone and rover telemetry over an extreme range.

Teledatics HaloMax portable hotspot with Raspberry Pi 4 and HaloMax TD-WRLS development board
Teledatics HaloMax portable hotspot with Raspberry Pi 4 and HaloMax TD-WRLS development board

HaloMax daughterboards can be used to extend the functionality of the TD-WRLS development board and include:

  • TD-RPIM2E Raspberry Pi M.2 Daughterboard for connecting HaloMax M.2 cards to a Raspberry Pi 3, 4, and 5
  • TD-WWHS Wi-Fi Hotspot daughterboard for extending a 2.4 GHz Wi-Fi/Bluetooth network
  • TD-WGPS RTK GPS daughterboard for a long-range GPS location beacon
  • TD-WSEN daughterboard for long-range temperature, humidity, volatile organic compounds, and CO2 level sensing
  • TD-WBAT daughterboard for a long-range, solar-charged LiPo or Li-Ion battery-powered node
  • TD-WETH Ethernet extender daughterboard
M.2 WiFi Halow module
M.2 Wi-Fi Halow module

The module itself isn’t open-hardware but the design files for the daughterboards are available on GitHub. Software support includes an FTDI SPI Linux driver and software packages for the NRC7394 chip in standalone and host mode. Documentation is quite sparse but there is a Discord server for community support.

The HaloMax project is live on Crowd Supply with a $50,000 funding goal. The HaLow module alone is priced at $34, the TD-WRLS M.2 HaLow development board at $39, and the M.2 2230 Key-E card costs $79. Most of the daughterboards are available for less than $50 and interested parties can purchase antennas right from the Crowd Supply page. All offers attract a $8 shipping fee within the US and $18 to the rest of the world.

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6 Comments
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Willy
18 days ago

While impressive, I’m wondering how the range will be shorten once many such modules are deployed everywhere. Anyway even with reduced range this could probably be useful to deploy as a mesh network in places which need some monitoring, for example forests for fire detection over very large areas etc.

Jacques
18 days ago

As usual, one has to remember that this was achieved because they had line of sight between the two devices (taking into account relief and the curvature of the Earth to make sure there are no obstacles between them, including in the Fresnel zone). The two points chosen are respectively around 3500 and 2000 feet ASL, with all the terrain between them much lower.

In real life, this will go down dramatically as soon as there is any obstacle in the way (terrain, vegetation…).

Having many devices using the same frequencies is more likely to lower throughput than range.

Georgi Angelov
18 days ago

1 watt, is it allowed ( I haven’t looked at the standard )
in normal conditions, the record is 16 km … for now

Cyk
Cyk
18 days ago

I’m waiting for an ESP32 with HaLo.

Khadas VIM4 SBC