High-speed dual-channel USB-CAN adapter with SocketCAN and RealDash support.
See price on Tindie
v2 Open source firmware
Ollie v2
An all-in-one USB to isolated UART x2, CAN, RS485 and RS232 converter.
$62 USD. Shipping $8 US, $18 worldwide at Crowd Supply. DB9 v2 connector $10 extra.
Stocked by Mouser. Crowd Supply orders placed now ship in late November 2026.
- Two isolated UARTs up to 6 Mbps, with 1.8 V, 3.3 V, 5 V or target-set levels on a slide switch
- Isolated CAN 2.0A/B up to 1 Mbit/s, SocketCAN and BUSMASTER compatible, with a termination switch
- Isolated RS485 up to 500 kbps with bias and termination switches, and isolated RS232 at 235 kbps
- ESD protection on every interface, so a fault on the target side cannot reach the computer
- RGB activity LED, USB-C connector and a plastic enclosure
- Optional DB9 v2 pluggable connector for CAN, RS232 or RS485, plus an OBD-II to DB9 cable
- Windows drivers and a Linux script that name each COM port by its function
Works with
SocketCANBUSMASTERpython-canLabVIEWC# and .NETESP32 and Arduino auto-flashing
Ollie v2 combines the interface modules that usually clutter a bench into one isolated box: two UARTs, CAN, RS485 and RS232, each galvanically isolated from the computer, so a mistake on a high-voltage target does not take your laptop with it. Slide switches select UART voltage levels, CAN termination and RS485 bias, and the screw terminals take bare wires. The optional DB9 v2 connector plugs in for CAN, RS232 or RS485 cabling.
Compared with the original Ollie, v2 lets the UART level follow the target, adds an RGB activity LED, a USB-C connector and a plastic enclosure, ships with Windows drivers and a Linux script that label each COM port by function, and moves to parts chosen for ongoing production. Support for USB Full Speed downstream targets was dropped, since modern debuggers use USB High Speed.
Specifications
What is inside
Interfaces
- UART
- Two isolated ports, up to 6 Mbps, 1.8 V, 3.3 V, 5 V or target level
- CAN
- CAN 2.0A/B up to 1 Mbit/s, termination resistor switch
- RS485
- Up to 500 kbps, bias and termination switches
- RS232
- Typical 235 kbps
Protection and build
- Isolation
- Galvanic isolation on every interface
- ESD
- Protection on every interface
- Connector
- USB-C
- Enclosure
- Plastic, included
- Indicator
- RGB COM port activity LED
Accessories
- DB9 v2
- Pluggable DB9 for CAN, RS232 or RS485, $10. Not compatible with the original Ollie
- Cable
- OBD-II to DB9 serial cable, 110 cm, $10
Software
- Drivers
- Custom Windows drivers, Linux COM port identification script
- CAN tools
- SocketCAN, BUSMASTER
- APIs
- LabVIEW, C#, VB.Net, Delphi, Python
Documentation
