USB-PIO offen
USB-PIO oben

24 Channels. Digital. Output & Monitoring.

Record and output digital TTL signals. The USB-PIO features three 8-bit bidirectional ports. The port lines are led out to a 25-pin D-Sub female connector.

Extra Small. Extra Red. Extra Low-Priced.

The unique idea of the USB-PIO: The data acquisition system is accomodated in the D-Sub connector housing. Not only the size is extra small but also the price.

Plug & Play.

The connection to the PC is realized via USB. The USB-PIO provides all typical USB features (e.g. Plug&Play, Hot-Plug). Up to 127 devices can be connected and installed during operation.

Powered by USB.

The device is supplied with power via the USB interface. This reduces cabling efforts to a minimum and makes mobile measurements a lot easier.

Open for Everyone.

Widely supported: The USB-PIO can be used under Windows XP/7/8/10 as well as under Mac OS X, Free BSD, and Linux. The complete software for installation and programming of the USB-PIO is included for free.

NextView. Try for Free.

The device is supported by NextView, the software for data acquisition and analysis. A fully functional 30-day trial is included with delivery to directly test the functionality of the USB-PIO.

Get Connected.

Various optocoupler and relay cards are available at bmcm to electrically isolate the digital lines. Particularly easy for the USB-PIO, as only a 25-pin D-Sub extension cable is needed for connecting.

The most important functions in a nutshell. For technical details see the relating data sheet (PDF).

  •   24 digital channels (TTL/CMOS)
  •   3 ports (8-bit), bidirectional
  •   bus-powered
  •   USB 2.0, full-speed
  •   device integrated in compact D-Sub housing

Hardware and Software from One Hand

Drivers, programming support for Windows, Mac OS X, FreeBSD, and Linux, as well as a 30-day full version of the measurement software NextView are included with all DAQ systems for free and can be downloaded from this website.

bmcm Driver Package

USB data acquisition hardware always requires the installation of a device driver to be accessible by software. By providing a free bmcm driver package, the device installation has to be done only once - additional DAQ hardware is installed automatically. 

Simply NextView

For all who want to start right away: View and store signals, configure the measurement system, process measuring data and much more. 
Test all features of the data ac­qui­sition software 30 days for free! 

Simply LIBAD

Programming leanly and quickly: Use bmcm data acquisition systems in your own programs. The hardware independent programming interface (API) LIBAD is available as DLL in 64 Bit (Windows 8+) or 32 Bit (Windows XP+, MacOS, Linux).

Or LabView VI's

You are using LabVIEW™? Also possible with data acquisition hardware from bmcm. LabVIEW VI's for our DAQ systems are included with the delivery as well or free for download. 


Digital I/O device (USB), 16/16 Digital I/O, isolated, 2 counters


Digital I/O module (USB), 24 Dig I/O, OEM version


USB data acquisition system (160Hz, 12 bit)


Optocoupler/relay card (IN: 5..30V, OUT: 6A/60V)


Relay card (OUT: max. 6A/60V)


D-Sub 25 connecting cable (male/female)

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