Taste The Code

I make weekly videos of electronics, code and general making

Meshtastic N39 GPS Tracker: Assembly, Setup, and a Real-Life Rescue Simulation

In this article I walk you through assembling and setting up the Meshtastic N39 kit with the Heltec V4 board, flashing the firmware, and testing GPS tracking in a real-world park scenario.

Dec 23, 2025 — 9 mins read

Trail mapping with GPS, ESP32 and microSD card

I made a device that can be used to map out trails in the wild and save the output as KML files on an SD card.

Jan 29, 2024 — 7 mins read

Helium-based DIY GPS vehicle tracker with RYS8839, RYLR993, and ESP32

I made a GPS tracker so I can test out the availability of the Helium network in my local area.

Nov 10, 2023 — 7 mins read

Review of a GPS Module Reyax RYS8839 and interfacing it on a PC

I tested out the RYS8839 GPS module from Reyax on my computer and was able to get a solid position through serial communication.

Oct 27, 2023 — 2 mins read

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