Measurement Computing Corp., Norton, MA, offers the USB-4301 and USB-4303 USB counter/timer devices. The USB-4301 is a 5-channel, 16-bit device with an 8-bit dedicated input port, and an 8-bit dedicated output port. The USB-4303 is a 10-channel version. Both devices have an impact-resistant ABS 5 by 3.5 by 0.4 in. enclosure with two rows of 24 screw terminals. Applications and source code for event counting, frequency measurement, square wave generation, single-shot pulse generation, and pulse-width modulation are included.
USB Counter/Timers from Measurement Computing
Measurement Computing Corp.