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Design an embedded control system responsible for temperature control, diesel engine control, and overall system diagnostics of a transport refrigeration system.

An eight bit CMOS microcontroller was selected to be the heart of this embedded system. The project’s software was developed using the “C” language. Along with the microcontroller and it’s hardware, an LCD display was selected to minimize power and maximize contrast under direct sunlight conditions. Internationally recognized icons were part of the custom display. Extreme environments and system integrity were paramount to the design.

The product was very well received in the field. It provided the customer with increased system capabilities with a decrease in system cost. Field service and system installation were enhanced via the extensive self-diagnostic capabilities.

68HC11 Microcontroller
Archimedes C compiler
Custom LCD display
Custom keyboard