Android Question Phone receive data wrong from HC-05 Bluetooth

YIM bunchhat

Active Member
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Longtime User
Hi, I have a problem with serial Bluetooth. Before it work properly but now I don't know why it has problem. I use Asychstream to send/receive ,When I send data to Arduino via Bluetooth it is ok all data receive but when my Arduino send any data to phone , my phone got data with lose first Char and when I try with other app serial terminal data don't lose. I don't know why?
 
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