The article, “LoRa GPS Tracker,” featured in the 6/2020 edition of Elektor described how to collect the tracking data from a TTN server using Node-RED and then visualize it on a map. In principle, this should work, not only with a PC, but also with a Raspberry Pi. Indeed this is possible, but there are one or two hurdles that need to be overcome. One of our readers found a good solution and describes how he ported the Node-RED flow to the single board computer.