Open Source Unsurv Offline Features ESP32, GNSS
https://www.electronics-lab.com/open-source-unsurv-offline-features-esp32-gnss/
A campaign has been launched on Crowd supply for Unsurv, which is an offline privacy-friendly, small, lightweight PCB (43 mm x 32 mm) loaded with an ESP32, GNSS reciever and NFC capabilities. It functions by using a combination of OpenStreetMap data on the SD card, and a custom Android app, enabling you to gather GNSS […]