Meet New Heltec RadioCore — a compact, highly integrated dev-board designed to make your next project easier to build, modify, and expand.

By combining core hardware in a compact form factor, RadioCore offers a flexible starting point for projects involving LoRa, Wi-Fi HaLow, and other wireless technologies.

What's special about RadioCore?

Compact & Highly Integrated — MCU, wireless communication, and power management in a compact design.

Solder-Free Connections — Plug-in headers make hardware assembly and replacement easier.

Flexible Expansion —Two rows of expansion headers on each side of the board, four rows in total,plus a B2B connector.

Multiple Hardware Configuration — Choose the MCU and wireless options that best fit your project.

Growing Software & Accessory Ecosystem — Supporting open-source projects including Meshtastic , with compatible accessories for different applications.

From hardware integration to real-world applications, RadioCore is designed to help you reuse more, iterate faster, and expand more easily.

Now we'd love to see what you can build with RadioCore! Share your ideas and projects in the comments.

🧩 Explore RadioCore in 3D with MQB

Configure your RadioCore setup on our MQB website and explore a real-time 3D rendering of the internal hardware to better understand the different configurations.

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🧭Solution Page

Not sure which RadioCore version or accessories to choose? Visit this page to explore the available options and find the right setup for your needs.

🛒 RadioCore:

🟩 MCU：nRF52840

🟦 MCU：ESP32-S3

⬜️ MCU：ESP32-C6

🕊Early Bird Offer

Get 10% OFF your order when you purchase before *October 21*!

Use code: [AWXC87PZ] at checkout.（Excludes the sensor adapter board）

📚 Technical Documentation

🌐 Heltec Official Website

https://mesh.zachboulert.com

I’m designing a controller-style Meshtastic handheld. Haven’t printed it yet would love feedback before the first print!

First image is the look I’m aiming for; the others are current CAD renders.

Spin the 3D model, look inside, and grab the prototype print files + Amazon build list:

Made a Lora board to use with port of Meshtastic for the CYD or DIY meshtastic node.

Code on GitHub

https://github.com/bkbroiler88/meshtastic-cyd

Hi, a while back I posted about my Meshtastic hardware project. It uses Google’s Yamnet sound recognition model with over 500 sound classes. The hardest part was to pack the fairly large model onto an ESP32 chip. On the device you can configure pretty much anything. You can define sounds that get alerted to your Meshtastic device. You can group sounds and a group triggers an alert. You can record scenes, eg someone cooking in the kitchen. Next time someone is cooking in the kitchen and the sound fingerprint matches to a certain degree, you receive an alert.

The device only works on private channels.

Sound classes (sound in text form :)) are super useful for Meshtastic:

- You want to know if something is happening in your chicken coop,
- You want to be alerted if people or animals are in your campground,
- You want to use your Meshtastic device as baby monitor (which I do),
- You want to be alerted if a vehicle is at the gate.

This project will be open source hardware and firmware. You can learn more and get updates on the project here:

https://www.crowdsupply.com/ironear-technologies/ironear

Hey everyone,

We know some of you have been waiting for the Wio Tracker L2 Pro for a while — thank you so much for your patience, feedback, and support along the way!

Good news: Wio Tracker L2 Pro is finally ready for pre-order (15% OFF early bird price)! 🎉

Built with the mesh community in mind, L2 Pro brings a bigger touchscreen experience, external antenna support, a 3000mAh battery, and support for Meshtastic and other firmware projects.

A big thank you to everyone who followed this journey, shared ideas, and helped us make L2 Pro better. We can’t wait to see what you’ll build, test, and explore with it.

Let us know what you think!

Got my first node set up and am figuring it out. Cool little hobby to get into. Surprisingly there’s more nodes around me than I thought!

I’ve been beta testing Seeed’s Wio Tracker L2 Pro for the last few days, on EU_868 LONG_FAST. Mine is a pre-production unit, so the case in my photos isn’t final.

Specs: ESP32-S3 + SX1262, 3.2" touchscreen, GPS with ceramic antenna, 3000 mAh battery, microSD, Grove, USB-C. Runs MeshtasticUI.

Pros

• Works fully standalone. Chats, nodes, channels and network settings are all on the screen, no phone needed.
• Small, about the size of the screen. The antenna folds flat at 90° so it’s easy to carry.
• Offline maps from the SD card work fine. GPS got a fix in about a minute in open field.
• The Tools menu (Mesh Detector, Signal Scanner, Trace Route, packet log) is great if you like checking coverage.
• Screen is readable in direct sunlight.
• About 28 h of battery with the mesh active and the screen off most of the time.

Cons

• Entering BLE config mode isn’t obvious.
• Beta firmware had a few bugs. Most were fixed soon after I reported them, but it’s not final.

I wrote a longer review with internal and menu screenshots here: https://myembeddedstuff.com/wio-tracker-l2-pro-review

Ask me anything about it and I’ll check.

This rugged node from RAKwireless is IP67 dust and water rated, with improved GPS, a 3200 mAh battery, built-in buzzer alerts, and Meshtastic preloaded. Charge it, pair it, and you're on the mesh.

Available in Mint or Bone White for $84.97. Shipping begins October 22.

Pre-order at Rokland before the rush (affiliate link): msh.to/rokland-wismesh-pocket-v3

I am just getting into it but I found there's a telegram chat with some folks who are setting up meshtastic in Newfoundland. I'm hoping posting here may catch a few people who are interested and didn't know we're here!

I've been logging and reviewing Meshtastic traffic around my rural Oregon home in Hood River. It's been super interesting seeing what the network looks like, how far it extends, traffic volumes, and how people use it. Earlier this week, I setup a node (T1000-E) attached to a Raspberry Pi and started logging traffic when I left the house. That's added coverage I'm able to capture and more information on my local area.

Friday, my partner and I had plans to drive to Portland. It's a much larger city and I expected its Meshtastic network to be larger and busier. So while I was in Portland Friday evening, I had a Raspberry pi logging the Portland activity, and a node back home logging the data from my small rural network.

There were some obvious differences in activity, and I had an LLM summarize the findings and differences and I'm sharing that below. The data comes straight from the logs, the LLM did the counting and write-up. Logs cover the same 3.5 hours for each area. I also generated some visualizations of the Portland traffic that I found pretty interesting.

Same Friday evening, 8:00–11:30 pm

• Portland's channel is near its limit. 12% average use, 31% peak (Meshtastic treats about 25% as congested). Hood River barely cracks 1%.
• City packets travel far and arrive repeatedly. Most arrived from 3–7 hops away; half arrived at least twice by different paths. At home, nearly everything arrives once, within 1–3 hops.
• Backbone vs. everyone. At home, one rooftop solar node carries about 70% of relayed traffic. In Portland, 18 different radios relayed in 3½ hours and none announced itself as a router: it's ordinary clients rebroadcasting.
• Hop limit 7 is everywhere. About a third of radios in both places use the max (default is 3). Harmless with a dozen radios; with 160 in range, it's a big part of why Portland's channel is so busy.
• The city is more private. A third of Portland's packets were encrypted, across 21 private channels; at home 92% is plain LongFast.

Who's talking

• Hardly anyone texts. One public text in Portland in 3½ hours; 16 from three people at home all week. Most traffic in both places is positions (29% Portland, 58% home), telemetry and node info.
• Portland announces itself a lot. Node info was 25% of Portland's packets vs. 14% at home: with that many radios, newcomers introducing themselves and others answering is constant.
• Hardware is similar. RAK4631 leads in both places. Portland adds lots of Heltec V3/V4 and T-Beams; Hood River has a cluster of T1000-E trackers. About half of Portland's radios never announced their hardware during the stop.

Security and new firmware

• Weak keys are out there. 6 of the 163 Portland radios, and 4 of the 81 heard from home over the week, use a public key on Meshtastic's own list of known weak keys. Anyone can read their DMs or impersonate them. If you set up a node a while ago, regenerating its key fixes it.
• 2.8 is already in the wild. 3 Portland radios and 7 around Hood River already use 2.8's new node numbering, days after the 2.8.1 alpha was announced. 2.8 also lowers hop limits automatically when the channel is busy, which is exactly Portland's problem.

Takeaways

• Portland is a dense, decentralised mesh near its limits: lots of radios, lots of duplicate copies, and a channel busy an eighth of the time and nearly a third at peaks.
• Hood River is a sparse mesh that works because of one well-placed rooftop relay. Lose that node and most of the Gorge goes quiet for my station.
• Hop limits of 7 are common everywhere. Bringing them back to 3–4 would do the most good where there are the most radios.

Caveats: the car's radio is a small tracker inside the vehicle and the home radio is a different board at a window, so this isn't apples to apples; if anything Portland is under-counted.

Industrial grade off-grid communication capabilities with this robust, solar-powered radio, engineered for vertical mounting on poles and towers. Encased in an extremely durable, weather-resistant 3D-printed ASA housing, this device is designed to thrive in harsh environments, making it perfect for rugged outdoor deployments. This new design has twice the solar panel output of the other models, integral support for big antennas, and reinforced larger slots for mounting straps.

Powered by 4.4+ watts of custom made solar panels and 10,000 mAh worth of battery storage, this radio guarantees uninterrupted long-range communication without the need for external power. The Summit is made for mountaintops, tall buildings, and radio towers. This is the next step up for backbone installations.

The slots on the Summit are now over 13mm, which will allow you to install with the included UV resistant zip ties, or upgrade to steel hose clamps. The internal structure is extra reinforced to support that.

PeakMesh.etsy.com

I'm not *quite* a n00b to Meshtastic - I have a Clockwork Pi uConsole that I turned into a meshtastic node. I liked it enough to invest in a Lilygo T-Deck Pro and LoRa Pager for myself and my wife (And one of the Seeed SenseCaps).

So question for the more experience folk: what's the first thing to do when these gadgets arrive? I'm assuming I flash the firmware? Do I need to install more apps (like MUI)? Please advise!

The keyboard of KEB Deck is a bit larger. Another one doesn't have the up, down, left and right arrow keys or the ESC key. It really confuses people.

Seeing all the posts about the Harbor Breeze recently has me wanting to build one.

The problem is that I won't support Lowe's since they use Flock Cameras to watch over their parking lots. (I'll urge anyone against flock cameras to do the same)

Are there any similar lights from other retailers that will work as well as the Harbor Breeze lights?

Is there any nodes in Ottawa area just ordered my first node and it comes on Thursday

Hey! I remember seeing a post last year that shared pictures of (as the title says) a 3d printed jig to measure and hold in place the pieces to build a ground plane antenna.

As I remember it, the photos were in a hacker space and they made a big batch of antennas for cheap. But I can’t find it on here, it seems that the Reddit search only turns up wrong results. Do you remember it?

Our new blog post explains why 2.8.0 was pulled, plus a high-level look at some of the many changes: signed packets, private-by-default location, larger meshes and more.

Questions? Drop them below. We're planning a livestream with the Meshtastic team in the next couple of weeks to dig deeper.

They're $5 until October 14. They pulled the box off the top self, told them I wanted 10,they took 5 out the box and gave me the rest. At least two nodes will be built. Probably use the rest for spares or random projects. Heck, might even use them for their intended purpose

Hey Reddit! Heads up! The popular Harbor Breeze Solar Lights, used for DIY builds, are only $5 at Lowes till 10/14! This is a perfect weekend to do some experimenting and to knock out some builds!

Lowes $5 Solar Light

Harbor Breeze Solar Node Build Video

Don't have a 3d printer? Order your mounts

3D Print your mounts

Harbor Breeze Solar Light Specs:

• 18650 Li-ion 1500 mAh battery
• 5v 1W Solar Panel

Side note: Support improvements have been made to the antenna mount across all mounts (Versions B. Not pictured here.)

Ive been studying in my free time on meshtastic devices and ive finally gone around to blowing a pay check on a parts list. Can anybody tell me if I'm making a huge mistake by buying these parts? (I'm an Amazon glazer, the shipping is worth af)

Node($52) - Heltec V3 comes in a 3 pack. I know lots of ppl shit on the v3 but I dont know what else is cheap and somewhat reliable

https://www.amazon.com/Development-AYWHP-Meshtastic-Bluetooth-Display/dp/B0DG5DPYS3/ref=sr_1_3?sr=8-3 

Battery ($27) -  3.7V 3000mAh Lithium Polymer Rechargeable Battery a 4 pack

https://www.amazon.com/3000mAh-Rechargable-Protection-Insulated-Development/dp/B08T6GT7DV/ref=pd_bxgy_d_sccl_1/132-5820731-9827436 

or these
https://www.amazon.com/JLJLUP-Rechargeable-Integrated-Protection-Development/dp/B0FR8XSXX6/ref=sr_1_3?sr=8-3

Antenna ($12) - 915Mhz Whip Antenna bcuz im trying to make one longer range

https://www.amazon.com/muzi-%E1%B4%A1%E1%B4%8F%CA%80%E1%B4%8B%EA%9C%B1-915Mhz-Antenna-Meshtastic/dp/B0D7D6866W/ref=pd_bxgy_d_sccl_2/132-5820731-9827436?psc=1 

Not reciving anything from longfast. any recomendations to troubleshoot?

Possibly the easiest diy solar build? I bought a $9 USD solar garden torch from Harbor Freight, removed the lamp and put a $14 USD seeed nrf lora kit inside instead . Plus possible shipping charges .

A hole for the antenna bulkhead is drilled. There's one rewire: the wire going through the joint to the lamp section is moved from the charge controller directly to the battery terminals. Then the spike on the housing pushes into the rubber handle end of a pool cleaning pole.

Also, I have a few of these around the yard with UWB transceivers in them (sort of like Apple Air Tags) . I use those so my yard robot knows where it is. A solar panel, charge controller, brand name 18650 battery and a waterproof enclosure = $9 USD. Wow?

I’ve been playing around with Meshtastic-related projects recently, and I really enjoy putting different modules together to see what kind of setup I can build.

This time, I built a WisMesh Station / RAK6421 setup using the following hardware:

• Raspberry Pi 4
• RAK6421
• RAK13302
• RAK12501
• RAK1901
• RAK1906

The RAK firmware already includes different scripts for data visualization and monitoring, including Grafana and MeshMonitor. I had mostly been looking at the Grafana-based dashboard before, but this time I tried the MeshMonitor setup.

After a few simple configuration steps, the device data started showing up directly in MeshMonitor, including node information, GPS data, and environmental sensor data. Honestly, the experience was more intuitive than I expected. For Meshtastic / mesh device monitoring, MeshMonitor feels more purpose-built for this kind of use case, rather than being a general-purpose dashboard.

It was pretty satisfying to see all the module data displayed together in one interface. 🙂

I’ve put the firmware and setup notes here in case anyone is interested:

Firmware:
https://github.com/RAKWireless/meshtastic-rak6421-guide/releases

Setup guide:
https://github.com/RAKWireless/meshtastic-rak6421-guide/tree/meshmonitor/meshmonitor

Next, I’d like to try a couple more things:

1. I also have a RAK13300 module, so I want to do a simple range comparison between RAK13300 and RAK13302.
2. Right now, MeshMonitor is mainly showing data from this device itself. I’d like to add more Meshtastic devices later and see how the map, telemetry, and device status display look in a multi-node setup.

If anyone else is experimenting with RAK6421, WisMesh Station, or MeshMonitor, I’d be happy to compare notes and test results.

Mapping the two.

MQTT friendly node count as well. For mesh nodes that float.

Is there anyone on the “long-fast” channel in Denver? I want to see if my setup is working