101–110 of 176 posts
Howdy, as the founder of the Serval Mesh adhoc networking protocols and hardware, what I would look for in a new radio is: 1. True packet radio mode, that doesn't hide the radioness of the link etc, but lets the programmer use it's strengths. 2. UART link, ideally using 3DR/RFD900 compatible connector (then we can include it directly in our existing systems, and so can others). 3. Field-flashable, but with robust pro…
Hi ya'll, so we've spent a few weeks making device software and an android app to convert a $30 chinese gps/radio into a long range mesh radio for hikers. It is working fairly well now (though still an alpha) and we'd love more people to try it and/or have fun coding on it. We got about 30 users (and some devs from this hackaday article) but we'd love more users and devs to join this happy-happy project: https://hack…
What frequency band are you using? ISM is the only one that permits store-and-forward / automatic operation, as the gotenna people found. You say a few miles per node - I am having trouble seeing how that's possible without elevating all the nodes
Not sure if this is "good" advice, but this would make for a very appealing kickstarter: cool gadget with very useful functionality for popular activities (music festivals, hiking, skiing) that could even help in an emergency. It hits a lot of the right notes. Possible that when you're further along you can have a kickstarter for a commercial version that's officially created by the open-source project. The more (mut…
There are already a couple of companies doing similar kickstarters I think. But we want this to be a non profit open source project for fun. We are using a GPL license, but if someone wants to eventually sell devices (as long as they obey the GPL) with our code we think that's great.
I have a hardware design that might be an interesting starting point. It's based around nrf52 (Cortex M4F with BLE and nice SDK), 400mah battery, microphone, speaker, 3*4 RGB LED matrix, gyro/accelerometer, NFC. Very small device, 35mm across. Can extend the top of the PCB, add a small OLED screen and a LORA radio. Hitting $30 price point shouldn't be a problem. Email in profile :-)
You could check for any lessons learned there. I think you can discount any flight users, because they would like to be seen too by other airplanes.
This is awesome! It looks like it could do several things for which I wanted to have a device. Offline GPS tracker with very long run time for hiking. I'd like up to one month run time. On the other hand I only need low time resolution, one waypoint each minute. It also does not need to send the location anywhere, storing it local is fine. Offline/Online GPS tracker for paragliding. Battery for one day, but also high…
https://forums.garmin.com/outdoor-recreation/inreach/f/gpsma...
Earlier quoted context omitted.
What frequency band are you using? ISM is the only one that permits store-and-forward / automatic operation, as the gotenna people found. You say a few miles per node - I am having trouble seeing how that's possible without elevating all the nodes
Can you use MURS for this? Or potentially GMRS if the operators are licensed?
OP is also talking about using off the shelf LoRa boards and their project is more about the software, so they are stuck with the bands available on the commercial LoRa transceivers those boards use.
Howdy, as the founder of the Serval Mesh adhoc networking protocols and hardware, what I would look for in a new radio is: 1. True packet radio mode, that doesn't hide the radioness of the link etc, but lets the programmer use it's strengths. 2. UART link, ideally using 3DR/RFD900 compatible connector (then we can include it directly in our existing systems, and so can others). 3. Field-flashable, but with robust pro…