can2gauge

can2gauge is a 52mm round digital gauge with a bright (1000 nits) 2.1" 480x480 touch screen. It reads almost anything your car will tell it (CAN bus, K-line, an OBD dongle, your OpenHaldex controller, your ECU or extra sensors) and you set every page from your phone over WiFi: no laptop or app needed.

*PRE-ORDER CURRENTLY, approx. 3 weeks for production*

Key features

• Body fits a standard 52mm hole, with the 79.2mm bezel sitting on the dash in front of it
• Up to 8 pages in 12 styles: needle, arc, bar, graph, single, dual, triple, quad, Haldex specific, gear, oil and custom
• Touch screen: swipe between pages, hold for the menu, tap and double-tap
• Data from CAN (VAG PQ / MQB / MLB, OBD-II, MaxxECU, or any of 108 DBCs), K-line (incl. ME7 logging), Bluetooth or WiFi OBD adapters
• Scan My Car: one button finds the values your car can show and suggests gauges and alerts
• OpenHaldex companion: live lock, target and mode, change mode from the gauge, and quick settings with a tap over WiFi
• Extra 0-5V sensors via adc2can; Aftermarket ECU data over WiFi via usb2ip
• Peak marker on every gauge: its highest reading, marked and shown as text
• Read and clear fault codes, data logging with graphs and CSV download
• 8 set-points for on-screen alerts, plus one 12V output (high or low side)
• Google Maps turn-by-turn on the gauge, with the can2gauge Link Android app
• Drag timer with a scoreboard of your best 10 times
• 71 colour themes, make logos on boot, night dimming from the dash lights, and Rev, the animated mascot
• Gauges daisy-chain and share data
• Over-the-air updates

What you need

• 12V ignition feed and ground
• CAN high / low, K-line, or a Bluetooth OBD adapter (sold separately)
• A 52mm hole with flat space around it for the 79.2mm bezel

Bluetooth OBD adapter (sold separately)

An adapter plugs into the car's OBD port, so there's no data wiring to do. It isn't included. It must be Bluetooth LE (often listed as "iPhone compatible"). These work well:

• OBDLink CX
• Vgate iCar Pro BLE 4.0
• Veepeak OBDCheck BLE / BLE+
• vLinker MC+ / BM+

Bluetooth Classic adapters, including the OBDLink MX+ and LX, won't work. Older VW KWP1281 modules and ME7 logging need the gauge's own K-line wire, not an adapter.

Setup

• Wire it in and power up: the gauge asks to be set up from your phone
• Join its WiFi; First Boot checks your car and suggests the settings
• Pick your pages, theme and logo, then apply

Good to know

• CAN IDs, scalings and protocols vary by car: check values against your own car before relying on them
• Never use diagnostics while driving
• To save power, the gauge's WiFi sleeps when nobody is using it: open the menu on the screen to wake it

Open source: firmware, PCB, enclosure and docs on GitHub.