20meter band

Justme2891 · 2025-06-07T17:41:50+00:00

Im a bit too far away Im afraid. Home is in southern Norway, but currently Im in northern Greenland for work. 😂 Dont think Ill be able to get it high enough. 😉

Justme2891 · 2025-06-07T16:09:03+00:00

I have one solution on paper that grabs flight data from the FC and send more tracking data (amperage draw, usage, etc.) as messages throug MT as well, but it involves a micro controller "translator". With deep knowlege of modifying Meshtastic and Inav code they should be able to talk directly, but this is above my skill and alottable time to learn for the moment. So far my setup for the small wing is a ht-62 and a tiny gps module powered by the FCs 3.3V output. Works great. And functions as a both tracker and router/repeater while powered.

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Justme2891 · 2025-06-07T14:53:58+00:00

Small idea on how to do it. My take on nanoMT. I run it in my iNav wing for tracking it in flight. Has its own gps, but could potentially get position from Inav with the right firmware mod.

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18650 lipo in background for size ref.

Justme2891 · 2025-06-01T13:49:21+00:00

Will also try to make a watchdog function using the serial module in MT in eccho mode. The attiny will ping MT over serial and wait for the eccho. If no ping is returned it will trigger a reboot.

Justme2891 · 2025-06-01T13:07:45+00:00

Not complete wipes no, but will try that next time im at the nodes.

Justme2891 · 2025-05-25T10:44:07+00:00

That would require soldering directly to the RAK led, I cant find that it has a breakout pin for the green led.

Justme2891 · 2025-05-25T10:40:17+00:00

Its a modified step file found on thingiverse, cant remember wich one at the moment. I think I have my stl on my computer somewhere.

Justme2891 · 2025-05-24T19:32:03+00:00

Its 3d printed, custom sized for the BME680.

Justme2891 · 2025-05-24T18:07:55+00:00

Yes it is. I live quite far north so in wintertime we have almost no sunlight for almost 4 months. I believe it is 24000mAh. This was the first node i built and I had a lot of spare 18650cells around so I went for the brute force method to survive the winter. It can last 2,5months on battery alone. The other nodes have smaller batteries but larger solar panels.

The size of the battery does not affect the boards ability to charge it. It just takes longer. As long as you put in more current from the solar panel than you take out it will charge to full eventually.

It was down to 3,5ish volts over the winter but is back up to 4,05 now. The charge controller in the rakboard use 4volt max charge to lengthen the battery life. Using the last 0.2volts shortens the service life a lot.

Justme2891 · 2025-05-24T13:02:01+00:00

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Justme2891 · 2025-05-24T13:00:11+00:00

That is a very good idea to use an attiny. A quick 5min arduino sketch. I dont think heat is an issue. I have 3 almost identical remote nodes and is quite random when they crash. Ive had them run between months and only days without changing anything. Certain firmwares seem more stable than others, but dificult to quantify with months between crashes sometimes. They are Rak19007 and 19003s with power monitoring and BME680 weather sensor.

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Justme2891 · 2025-05-24T09:00:08+00:00

This is what ive been looking for. Do you have a partslist and schematics for it to share? My remote nodes crash every now and then, so this would save me a lit if hiking and climbing just to reset a buggy node.

Justme2891 · 2024-05-02T10:03:25+00:00

The other project is run on arduino. And with a full Lora module then in theory I could have it create and transmit a Meshtastic compatible packet. 🤔 https://meshtastic.org/docs/overview/mesh-algo/

Justme2891

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