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How to Send Command for any hardware device

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Sorry i'm new in software connect to hardware. i have refer link from this
https://bytes.com/topic/visual-basic...help-bluetooth
and it work well and connect successfully. but the problem is when i write or send some command to device . The device no response but have connected. so actually how to send command to device?? i just use myserialport.write("abc") .

Another is, i see most of they areusing arduino language to connect. so can use arduino language to connect zebra product?
Jan 2 '19 #1
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