Profile: DC Allen Ltd. is an electronic system designer and developer. We are an ISO 9001 quality assured company. Our electronic systems serve in applications like healthcare, instrumentation and signal processing applications. We specialize in embedded systems, instrumentation and control tasks. Our stepper motor controllers when used in conjunction with a compatible driver, provide flexible control of stepper motors with minimum processor overhead. They are designed to interface directly with full-step, half-step and microstepping drivers. They are able to generate step pulse trains at up to 30kHz and are controlled by means of a SPI serial interface. We also provide with scientific instrumentation and test equipments. Some of them are signal processing electronics and software for a pressure monitoring system in oil exploration applications, fiber optic cable blowing installation equipment and automated sash window controllers.