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MicrocontrollersMonitoring the real world with a computer presents problems of electrical interfaces. Using microcontrollers allows you to interface easily to digital and analog signals at a reasonable cost. Microcontrollers can be programmed to scan binary and analog inputs then send XML encoded data out its RS232 port.------------ | Client | | Computer | RS232 ------------------- | |------<------<-------| Microcontroller | ------------ XML Stream | | ------------------- | | | TTL | Analog CMOSHere is a HC11 program that does the job. The program scans digital and analog inputs, then sends XML encoded data using the RS232 port once per second. XML.asm |
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