Open source USB to GPIB converter (for Test and Measurement instruments)
4 months ago
- #Open Source
- #GPIB-USB
- #Test Equipment
- New firmware version V2.2 released on 30th Nov 2025.
- User manual for UsbGPIB V2 added under Tutorials on 23rd Nov 2025.
- Pre-built GPIB-USB converters available via Elecrow for hassle-free setup.
- Project goals include USBTMC protocol support, small size, affordability, and compatibility with various test equipment.
- ATMEGA32U4 microcontroller chosen for 5V I/O support and internal 3.3V regulator.
- Two PCB revisions available: REV 1 with USB Type-B and REV 2 with USB Type-C.
- 3D printable housing designs provided for both revisions.
- Device only appears in device manager when GPIB device is connected.
- Supports standard USBTMC Test and measurement class for compatibility with VISA tools.
- Firmware allows configuration of read termination, auto ID query, and string length for VISA resource names.