LTO 3900 mAh Battery Pack with BMS LTO 2.4 V / 3900 mAh battery pack with battery management system

Finally! After months of development and a few PCB versions, my LTO battery packs is available to purchase. 🥳

lectronz.com/products/lto...

PCBs for this LTO BMS are home and I'm soldering the main (blue on the photo) connector to all 90 pieces.
And how is your Sunday going? 🙂

Exciting news today. The manufacturer is ready to ship 200 LTO cells for my LTO battery back with BMS. 🥳

If all goes well, it will be available for your Meshtastic/MeshCore/Reticulum nodes by the end of this month.

lectronz.com/products/lto...

Phone notification from HomeAssistant app saying: "Brother in need! Running out of black toner in your Brother."

Okay, this is so cool. 😎

Two years ago, I set up a Home Assistant alert for low toner in my Brother laser printer. Then I completely forgot about it - until today, when I finally got the notification! 😅😁

#homeassistant

Meshtastic Solar Station by Vlastimil | Download free STL model | Printables.com The second version of the solar-powered Meshtastic station for ⌀28 mm, ⌀34 mm or ⌀40 mm antenna brackets. | Download free 3D printable STL models

Thanks 🙏 I published 3D printed files on Printables. Pictures there are older, I have to upgrade them, but files are up to date.

And I offer fully assembled station on my Lectronz store, too.

www.printables.com/model/102750...

Just got an email from a customer, and it turns out my Meshtastic Motherboard is more versatile than I thought! It works with Meshtastic, MeshCore, and also Reticulum. 💪

Any other LoRa firmware we can try?

Meshtastic motherboard (designed by me) running MeshCore room server firmware.

Screenshot from the MeshCore application connected via Bluetooth.

A quick test of the MeshCore firmware on my "Meshtastic motherboard". It works!

Should I call it "Meshtastic/MeshCore motherboard" now? 🤔😁

My new antenna is bigger than yours! 😎 #Meshtastic

Quansheng UV-K5 8. My new toy.

I bought a thing... 📻🎙️📡 #hamradio #quansheng

Looks like an interesting project. ⌛ Can you share more details, please? Why four Pi? Is it .are accurate than PTP?

I've built a pocket-sized Game Boy emulator using the RP2040 and shared all the details on my blog. Whether you're into retro gaming or love DIY projects, check it out here:

uart.cz/en/2616/pock...

#GameBoy #RetroGaming #RP2040

Multiplayer chess with everyone on the network? ♟️😁

Thank you! I thought it looked like the Mikrotik antenna.
Based on your measurements, it seems it's worth the investment.

You can use emojis, you know that? 😁 No words needed.

Good job with the measurements.

Some of them are clearly not for 868 band. I wouldn't expect most of them behaves this poorly.

May I ask which antenna the second one is? It seems to be the best suited for the 868 MHz band.

Another Meshtastic solar node is finished and ready for duty.

I built the first node of this design over six months ago, and it’s been working flawlessly ever since. Since then, I’ve refined the design, optimized the 3D-printed parts, and improved the electronics.

#Meshtastic #3Dprinting

Still need to 3D print an enclosure for this, but otherwise, it's working perfectly. It’s a simple upgrade anyone can make to those $5 LED chains.

This is exactly the kind of project my USB-C charger was made for. It’s not just a charger - it’s also a USB-UART converter, an UPDI programmer, and a tool for small, versatile mods like this one. I'm so happy with this design.

The best part? I can recharge the battery with any standard USB-C charger. No more fiddling with external AA battery chargers or throwing out alkalines. Just plug and go.

So, I grabbed one of my USB-C battery chargers (a design I made myself in KiCAD) and modded it to output 2.9V instead of its default 3.3V. Now the LED chain runs at constant brightness, powered by a 1000 mAh LiPo. Rechargeable, reusable, hassle-free.

The original chain used 2 AA batteries—no electronics, just direct power to LEDs. It worked, but dimming lights as batteries drained was annoying, and swapping batteries constantly? Not great for convenience or the environment.

Ever had one of those cheap LED light chains that dim as batteries drain? Me too. So, I modded mine into a USB-C rechargeable version with constant brightness. No more dead AA batteries. It's a neat little project, and here's how I did it. 🧵

Picture of the PCB panel with 6 Meshtastic boards.

🌞 Say hello to the solar-powered Meshtastic board with MPPT - now in revision D! 🚀
I made some tweaks to the PCB design based on user feedback. And since I was ordering a larger batch (50 pieces), I prepared it as a PCB panel - my first one ever!

Check it out here: lectronz.com/products/sol...

Thanks for your interest. Can you send me a DM, so we can talk about details, please?
I don't know why, but I cannot send you a DM for some reason.

Preparing a 915 MHz version shouldn't be a problem -- it's just a matter of swapping the RAK module. If there's enough interest, I can make a 915 MHz batch. However, I don't have much experience with shipping outside the EU.

From the meshtastic community on Reddit: I connected AI assistant to the mesh Explore this post and more from the meshtastic community

Earlier this year, I set up Llama on my old computer without a GPU and created a simple Python script to connect the LLM to Meshtastic.

www.reddit.com/r/meshtastic...

Yes, it is! A node can send location information at regular intervals with a predefined precision.

Sure, send me a message here, we can chat.

Meshtastic is an open-source project that turns small, low-power devices into a long-range, off-grid communication system using LoRa radios. Perfect for hikers, ham radio enthusiasts, or anyone who needs text and location sharing without cell service.
#Meshtastic

On the other hand, this should be the last hand-soldered batch. The next batch will be fully assembled by a PCBA service. Sooo... maybe no more soldering?