WiCAN PRO
FlagshipAdvanced OBD-II scanner: every legislated protocol, Wi-Fi, BLE, USB host, microSD and Home Assistant.
$89
OBD or USB Open source firmware
WiCAN
Open source ESP32-C3 OBD-II adapter with Wi-Fi, BLE and USB.
$42 USD per variant. Shipping $8 US, $18 worldwide at Crowd Supply.
- Two form factors: WiCAN-OBD plugs into the OBD-II port, WiCAN-USB has a USB port and screw terminals
- CAN 2.0A/B up to 1 Mbit/s with TCP and UDP over Wi-Fi, in access point or station mode
- Works with RealDash, SocketCAN, BUSMaster and SavvyCAN, plus an API for Python, C#, LabVIEW and more
- Battery-saving sleep mode under 1 mA when the vehicle is off
- Wi-Fi and CAN settings in a built-in web interface, firmware updates over Wi-Fi
- MQTT battery voltage alerts on WiCAN-OBD, USB-to-CAN and USB-to-UART bridge on WiCAN-USB
Works with
RealDashSocketCAN / slcanBUSMasterSavvyCANpython-canHome Assistant
WiCAN is the original MeatPi OBD adapter: an ESP32-C3 with a CAN transceiver, running open source firmware that exposes the vehicle bus over Wi-Fi, BLE and USB. It joins your existing Wi-Fi network or hosts its own access point, and dashboards such as RealDash connect to it on Android, iOS and Windows.
For new OBD-II projects we recommend WiCAN PRO, which adds a dedicated OBD interpreter and the full set of legislated protocols. WiCAN remains the right pick for RealDash dashboards, bench work over USB and projects that only need plain CAN.
Compare
WiCAN PRO or WiCAN?
Both run the open source WiCAN firmware. WiCAN PRO adds a dedicated OBD interpreter for the protocols beyond CAN, a USB host port, SD card logging and encrypted connections. The OBDLink MX+ column is there for reference.
| Feature | WiCAN PRO | WiCAN | OBDLink MX+ for reference |
|---|---|---|---|
| USB and hardware | |||
| USB host interface | Yes | No | No |
| Dual USB to serial | Yes | No | No |
| Button | Yes | No | Yes |
| SD card logging | Yes | No | No |
| Connectivity and software | |||
| Interface | Wi-Fi, BLE, USB | Wi-Fi, BLE | Bluetooth |
| WiCAN firmware | Yes | Yes | No |
| WireGuard VPN | Yes | No | No |
| HTTPS | Yes | HTTP only | Not applicable |
| MQTTS (secure MQTT) | Yes | MQTT only | Not applicable |
| Home Assistant Nabu Casa | Yes | No | No |
| Firmware updates with the latest features | Full | Limited | Not applicable |
| Improved web interface | Yes | No | Not applicable |
| Additional reverse engineering tools | Yes | No | Not applicable |
| RealDash CAN protocol (pins 6 and 14) | Yes | Yes | No |
| slcan and SocketCAN (pins 6 and 14) | Yes | Yes | No |
| Protocols | |||
| Medium speed CAN, MS-CAN (pins 3 and 11) | Yes | No | Yes |
| GM high-speed J1962 (pins 12 and 13) | Yes | No | Yes |
| Single wire CAN, GMLAN (pin 1) | Yes | No | Yes |
| SAE J1850 PWM | Yes | No | Yes |
| SAE J1850 VPW | Yes | No | Yes |
| ISO 9141-2 | Yes | No | Yes |
| ISO 14230-4 slow and fast | Yes | No | Yes |
| Instruction sets | |||
| ELM327 instructions | v2.3 | Emulation v1.5 | v2.3 |
| ELM329 instructions | v2.2 | No | v2.2 |
| STN instructions | Yes | No | Yes |
| VT instructions | Yes | No | No |
| Price | |||
| Price (USD, before shipping) | $89 | $42 | $139.95 |
Prices in USD before shipping, as listed by each seller. Scroll the table sideways on a phone.
Specifications
What is inside
Core
- MCU
- ESP32-C3
- CAN
- CAN 2.0A/B up to 1 Mbit/s
- Wireless
- Wi-Fi (AP and station), BLE
- Sleep current
- Under 1 mA
WiCAN-OBD
- Connector
- OBD-II (J1962)
- Power
- 7.5 V to 16 V from the OBD port
- Extras
- MQTT battery voltage alerts
WiCAN-USB
- Connectors
- USB and screw terminals
- Power
- USB, or 7.5 V to 36 V on the terminals
- Extras
- USB-to-CAN adapter, USB-to-UART bridge up to 6 Mbps, diode-protected USB
Documentation
Set it up, keep it updated
Goes with