Sunday, February 9, 2020

LoRa Links

https://www.youtube.com/watch?v=v3JIx7ICmnI   [ESP32 LoraWan Gateway with Heltec/TTGO Lora32 boards - Part I]
https://www.youtube.com/watch?v=OfH80Gmgf-o&t=16s [ESP32 LoraWan Gateway with Heltec/TTGO Lora32 boards - Part II]
https://www.youtube.com/watch?v=eZhDvsJzwwI [ESP32 LoraWan Gateway with Heltec/TTGO Lora32 boards - Part III]
https://www.youtube.com/watch?v=sYPL85ViFPE&t=22s [ESP32 LoraWan Gateway with Heltec/TTGO Lora32 boards - Part IV]

https://github.com/ricaun/esp32-ttnmapper-gps [Code to make experiment on TTN Mapper with GPS and TTGO]

Getting LoRa working with the LimeSDR Mini (Experiments)

Clone these three repositories:
https://github.com/myriadrf/LoRa-SDR

https://github.com/pocoproject/poco

https://github.com/nlohmann/json


For poco and json make sure you install them so the LoRa-SDR installer can find them:
sudo cmake --build . --target install


but I get an error

https://discourse.myriadrf.org/t/failed-safe-load-module-error-with-lora-sdr-and-pothosflow-and/5744


here is a means to reinstall::
http://blog.reds.ch/?p=43

https://cyberspy.io/articles/pothossdr/



Wednesday, February 5, 2020

GNU Radio Companion with LimeSDR Mini Test

0) Attach cooling fan to battery

1) Plug in LimeSDR Mini. The LED blinks alternating yellow/red when plugged in.

2) Launch a virtual shell (Ctrl+Alt+T). Type LimeQuickTest. The LED on the LimeSDR Mini should start blinking green.

3) Launch GNU Radio Companion. Amateur Radio > SDR > grc.
Launch the file FM_Reciever.grc from
https://github.com/myriadrf/gr-limesdr/tree/master/examples


Future plans:

https://revspace.nl/DecodingLora , recordings (http://bertrik.sikken.nl/sdr/) ...wav at a different sample rate than can be played with media player like VLC.

Basic Setup with the LimeSDR Mini and Ubuntu 18.04 Bionic

To get the LimeSDR Mini working with Ubuntu 18.04 follow the following:
https://github.com/pothosware/PothosCore/wiki/Ubuntu

To get LimeSDR Mini working with GNU Radio Companion, also add:
https://github.com/myriadrf/gr-limesdr

But does the LimeSDR Mini work with GQRX?? Try SDRAngel.
https://discourse.myriadrf.org/t/limesdr-mini-gqrx/4537

Other Useful links:
https://github.com/pothosware/SoapySDR/wiki#installation