GPS TRIP METER / ESP32 APPLICATION
Radbuzz
GPS map / trip meter / speedometer for VESC-based electric vehicles
About this project
About this project
A trip computer for VESC-driven electric mopeds and motorcycles, built around a Waveshare 4.3-inch ESP32-P4 touch display. It draws an OpenStreetMap map (currently OpenCycleMap) from a UART GPS, shows a speedometer from both VESC data and GPS, trip distance and average consumption, a Tesla-style power bar, range estimation and a colour-coded trip log on the map. Over Bluetooth it reads BMS status from em3ev KingShark and Ali new energy packs; through Gadgetbridge it takes navigation instructions from Google Maps or OsmAnd and forwards calls, SMS and email to the screen. Hardware also needs a rotary encoder, a CAN adapter such as the SN65HVD230, and a DC/DC converter from the VESC's 12 V outlet. The map needs a Thunderforest key, built in or as osm_key.txt on the SD card. Written in C++23 with LVGL; it also builds for Qt or unit tests on a desktop.
From the README
From the README
- Input
- UART-based GPS (UBLOX Neo-6M / Neo-7M tested)
- Dependency
- A CAN-bus adapter to communicate with the VESC
- Build
- Written in clean and modern C++ (C++23)
- Setup
- Get an API key for thunderforest
Hardware
Boards: ESP32
ESP32-class board. Verify the exact board revision, display, power source and wiring in the upstream build guide.
Media credit & rights
Upstream project media · rights remain with its owner · Credit: SimonKagstrom
Screenshots from the upstream README. Code and firmware were not executed. License notices are included.
View original source ↗ Copyright & removal · Reviewed
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