Does your microcontroller project need to convey a bit more information than a standard 16 x 2 LCD can handle? If so, one of the best ways to establish a data communications session between a microcontroller-based deviceand human eyes is to pipe the human-to-device and device-to-human chatter through an RS-232 connection that you establish between the microcontroller’s USART and a personal computer’s serial port...
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The Design Cycle 200811 (Matrix Orbital LCD Panel driver routines)