Mastodawn

RAKwireless WisMesh Pi HAT RAK6421 turns your Raspberry Pi 4/5 into a modular Meshtastic gateway

https://fed.brid.gy/r/https://www.cnx-software.com/2026/05/26/rakwireless-wismesh-pi-hat-rak6421-turns-your-raspberry-pi-4-5-into-a-modular-meshtastic-gateway/

RAKwireless WisMesh Pi HAT RAK6421 turns your Raspberry Pi 4/5 into a modular Meshtastic gateway

RAKwireless WisMesh Pi HAT RAK6421 is a modular Meshtastic gateway expansion board for Raspberry Pi 4/5 that adds support for the company’s WisBlock ecosystem. Designed for users running meshtasticd (the Linux-native Meshtastic service), it enables scalable, always-on Meshtastic base stations, MQTT gateways, and backbone relay nodes. Unlike other LoRa solutions based on Raspberry Pi, the RAK6421 takes a modular approach. Instead of a built-in radio, it offers two WisBlock IO slots and four sensor slots, allowing users to easily plug in or swap modules. This means you can choose between standard LoRa modules like the RAK13300 or higher-power 1W versions like the RAK13302, without dealing with messy USB adapters or breadboard wiring. RAK6421 WisMesh Pi HAT RAK6421 specifications: Compatibility Raspberry Pi 4, Raspberry Pi 5, and Raspberry Pi Zero 2W SBCs Potentially other SBC with standard 40-pin Raspberry Pi GPIO header (HAT+ compliant) Expansion 2x WisBlock IO slots for LoRa radio

CNX Software - Embedded Systems News

GerMaCrise May 25

Un peu de travail ce week-end. La mise en boite d'une partie de la #briquetelecom du #POC la validation de la partie #meshtastic, de la valise de gestion de réseau #heltec #lyligo #RAKWireless https://germacrise.wordpress.com/2026/05/25/brique-telecom-reseau-tactic-gestion-de-crise-reseau-mesh/ #gestcrise #crise #crisis #emcom

[Brique télécom] Réseau tactiC gestion de crise, réseau Mesh

parler de fin de la brique Télécom serait un mensonge, mais on va dire finalisation de la V1 du réseau « tactic » Nous allons donc commencer par un petit reportage photos, pui…

GerMaCrise

MarSik May 16

For deployments where lithium batteries are not acceptable, I am testing 3S #nimh accumulators.

The #liion charger in #rakwireless is configured for 4.2v max and that is 3x 1.4v. Per https://goughlui.com/2019/04/14/experiment-charging-ni-mh-batteries-with-constant-voltage/ and https://www.ti.com/lit/an/slyt468/slyt468.pdf it might work just fine.

There are interesting cells available like https://camelion.com/product/camelion-ni-mh-hr20-d-10000mah-1-2v-bp2/

3S AAs fit into the operating envelope of the board. I need to test charging later. Just beware: always ready cells do not like trickle charging.

#meshcore #offgrid

Resilience Theatre Nov 23, 2025

Vivid Unit is RK3399 based embedded computer with 5.5" screen. You can find it here https://www.vividunit.com/ and here is my buildroot image for it: https://codeberg.org/resiliencetheatre/vivid-ext-tree
Pictured here with RAK Wisblock Meshtastic radio.
#rk3399 #embeddedLinux #meshtastic #rakwireless

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Gareth Halfacree Nov 12, 2025

Whoop, a last-minute bit of overtime to cover an interesting new gadget from #RAKwireless: the WisMesh Tag card-style location tracker for the #Meshtastic mesh LoRa mesh network - and it's being *very* aggressive in its comparisons to the earlier Seeed Studio SenseCap T1000-E Card Tracker.

https://www.hackster.io/news/rakwireless-takes-on-seeed-studio-s-sensecap-t1000-e-with-the-wismesh-tag-meshtastic-tracker-907b2d78c818

#Technology #InternetOfThings #MeshNetworking #Messaging #LoRa #Gadgets #News #Hackster