embedded - Any higher level protocol over serial port communication ? -

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we running course in robotics , xbee favorite communication protocol student. in last 2 years helped them build around 62 various projects (40 more in pipeline).

all projects involve sending different kind of data bot. 1 byte command long string interpreted. face issue of addressing bot when 1 xbee used in broadcast mode send messages particular bot among several. students use creativity address issue each time.

i feel reinvesting wheel. wonder if higher level protocol proposals exist serial port communication , if there isn't specific protocol design wonder if if worth designing 1 student needs.

you can implement modbus ascii if want go standard protocol that's open.


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