Advise on BLE

In Progress


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”

Compétences : Android, Bluetooth à faible consommation (BFC)

Voir plus : Design a logo with name G A I T A N O, Design a logo win name G A I T A N O, Hello i am 10th passed in a good percentage 90.08% i took 2years gap because of health issues so i cnt go for 11th n 12th i want, A database upgrade requires the execution of numbered scripts stored in a folder, Write a public class method chopMiddle that accepts a String parameter with 5 integers in it separated by commas (e.g. “1,2,3,, công việc tuyển dụng việc làm part time photographer thợ chụp ảnh jobs in việt nam, a written article on the topic an outcry in the country against the desire to get rich quickly bribery and corruption embezzleme, m i x p a n e l com, m e a n, i want to design a logo for my new youtube channel about drones this is one example for the drones, i want to design a logo for my new youtube channel about ( drones ) this is one example for the drones, i need urgent help to complete a onepage website pretty simple it has a prototype currently 20 completed, i need urgent help to complete a one-page website (pretty simple) it has a prototype currently 20% completed, design a logo for s u p e r n a n n y, a??n, write toolbar application android, convert cldc blackberry application android, call sending receiving application android, call feedback application android mobile, bluetooth obex application android, prting application android, webex application android, soundboard application android, database application android, application android sip voip

N° du projet : #14061439

Décerné à :


hi..we would like to work with you..we have a 5 year experience in android-ios and web application development.. we would like to give quality of work and client satisfaction is our motto. i read your concern well. Plus

100 $ USD en 1 jour
(13 Commentaires)