Im building an android app for a BLE device.
It is suposeed I need to send HEX commands to the device and the device return a result.
Im following this tutorial: [url removed, login to view]
I can connect to device but not capabale to send or receive commands. Im suspicious that the hex is send in text... but not sure.
I need you to help me send a command and receive the result on apk
Because is advisory service, the task is done trought Teamviewer
Device manufacturer provided this information:
Function : Get Time
Send : 0x71 00 00 00 00 00 00 00 00 00 00 00 00 00 00
CRC Parameter : N/A
Return : 0x71 AA 00 00 BB CC DD EE 00 00 00 00 00 00 00 CRC
AA=0x01 : The command completed successfully
AA=0x00 : Command execution failure or CRC check errors
BB CC DD EE is Little-endian format time , The unit is in
seconds , It is a relative time , Benchmark for at 0:00:00 on
January 1, 2000 .
For example : BB CC DD EE as 92 F3 74 1D ,then the time is
0x1d74f392=494203794 seconds , So“0:00:00 on January 1,
2000 ”+ “494203794”= “22:49:54 on August 29th, 2015”
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Hello sir, we have recently create one BLE app for send and receive data using BLE adapter i'm send data in any BLE service and service and user sent data using BLE adapter through my app and i'm receive 20 bytes be Plus