External Hardware Development

Universal Control Module

The NP-II-ECU operating system allows the downloading of user applications and parameters as well as real-time control from a host PC using software described below. The device is powered through an internal rechargeable battery, which can provide five hours of continuous operation, and an external battery pack that can provide an additional five hours of operating. The NP-II-ECU design incorporates multiple safety features, including two levels of battery charge warnings, coupling status warnings, and internal error messages. The NP-II-ECU is housed in a wearable enclosure which includes input switches and output LEDs that can be configured to maximize function for each specific application. The external controller measures approximately 16 x 9 x 5 cm.