evDash

evDash is an open-source EV dashboard for M5Stack devices. It reads live vehicle data from CAN/OBD2, shows real-time screens on a 320x240 touch display, and can log or upload telemetry over WiFi.

Use this firmware at your own risk.

• Discord: Join the community
• Release notes: RELEASENOTES.md
• Installation guide: INSTALLATION.md

What evDash does

• live EV telemetry on multiple screens (tiles, speed, cells, charging graph, debug, HUD)
• touch-first UI with menu paging, drag scrolling, and on-screen keyboard
• communication via CAN (MCP2515/COMMU) or OBD2 BLE4
• OBD2 WiFi adapter mode (marked as DEV)
• SD card logging and optional remote uploads (ABRP, MQTT, API, anonymous contribute)
• OTA update over WiFi

Supported hardware

Main boards

• M5Stack Core2 v1.0
• M5Stack Core2 v1.1
• M5Stack CoreS3 (active development)

Vehicle interface

• CAN via COMMU / MCP2515
• OBD2 BLE4 adapter (tested with Vgate iCar Pro BLE4)
• OBD2 WiFi adapter [DEV]

For long-term use, direct CAN is recommended over generic OBD2 adapters.

GPS modules

• M5 GNSS (NEO-M9N, typically 38400 bps)
• M5 GPS (NEO-M8N, typically 9600 bps)

Supported vehicles

This project is for battery EVs and EV/PHEV models with implemented decoders.

Fully supported:

• Hyundai Ioniq 5/6 (eGMP)
• Kia EV6 (eGMP)

Community/ongoing support:

• Kia e-Niro, e-Soul, EV9
• Hyundai Kona EV, Ioniq, Ioniq PHEV
• Renault Zoe
• BMW i3
• Peugeot e-208
• VW ID.3 / ID.4
• Audi Q4
• Skoda Enyaq

Support level varies by model year and ECU behavior. See RELEASENOTES.md for the latest parser and feature updates.

Quick install (binary)

Use the evDash Web Flasher: https://www.evdash.eu/m5flash or follow INSTALLATION.md.

Build from source (PlatformIO)

1. Install VS Code + PlatformIO extension.
2. Clone this repository.
3. Copy platformio.ini.example to platformio.ini.
4. Set your serial upload_port / monitor_port.
5. Build one target:

~/.platformio/penv/bin/pio run -e m5stack-core2-v1_0
~/.platformio/penv/bin/pio run -e m5stack-core2-v1_1
~/.platformio/penv/bin/pio run -e m5stack-cores3

6. Upload:

~/.platformio/penv/bin/pio run -e m5stack-core2-v1_0 -t upload

UI controls

Touch zones (normal screens)

• left third: previous screen
• right third: next screen
• center third: open menu

Menu controls

• top-left 64x64: exit/parent menu
• top-right 64x64: page up
• bottom-right 64x64: page down
• rest of area: select item
• drag: smooth vertical menu scroll

Screens

• blank (LCD off)
• auto mode
• tiles/basic summary
• speed + driving/charging indicators
• battery cell voltages and temperatures
• charging graph
• debug / diagnostics
• HUD (when enabled)

Anonymous contribute data

Enable Remote Upload -> Contribute anon.data to share anonymous command/response telemetry with the dev team.

Uploaded payload may include:

• ATSH + PID request identifiers
• raw response payloads
• timing fields like <ATSH>_<PID>_ms
• runtime state snapshot (SOC, temps, GPS, etc.)
• packet filter metadata when relevant

No direct personal identity fields are intended in this stream.

M5Core2 v1.0 vs v1.1

Both run evDash. The key differences are power and RTC behavior.

Topic	Core2 v1.0	Core2 v1.1
PMIC	AXP192	AXP2101
RTC backup battery	No	Yes
Onboard INA current sensing	No	Yes
Typical power LED color	Green	Blue

v1.1 is usually better for long-running logging setups and stable timekeeping.

No longer supported

• M5Stack Core1
• LILYGO TTGO T4 v1.3
• SIM800L GPRS module