Android : filter many CAN IDs when monitoring CAN Data with ELM 327 throught Bluetooth -

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i developping android app display can data using elm 327 in bluetooth. following elm 327 datasheet, can filter received data sending @ cra hhh (hhh = can id) before monitoring @ ma. objective display data specific can ids (for example 7a2, 250, 420...). try send many @ cra hhh commands last 1 used elm. question is: how can set many can id filters elm327?

the elm accepts can filter , maks commands @ cf , @ cm, solution?

cra hhh convenient way set mask , filter allowing receive messages single can id.

for example,

at cra 123

is equivalent to

at cf 123 @ cm 7ff

so, yes, right, receive list of specific can ids, have use @ cf , @ cm commands , forge specific (filter,mask) pair according needs.


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