Uploaded July 2025 | Updated September 2026, 53 minutes ago

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In this video, I demonstrate how to build a digital fuel gauge using my custom J1850 VPW module and an Arduino-compatible RP2040 microcontroller board. This project taps into the GM Class 2 data bus (J1850 VPW) to decode fuel level data and display it on an LCD.

GitHub link: github.com/garnerm91/J1850/tree/main/ExampleGauge
Amazon links:
TXS0108 level shifter amzn.to/41ehUo2
RP2040 amzn.to/454HPzP
ST7789 1.69in display amzn.to/46y5laV
My Module: ebay.com/usr/mattus.i8wvojtcv