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I’m trying to use the CC41a BLE as a master to detect a Android Mobile(Redmi Prime,Motorola moto x play)

but when I do AT+INQ it only returns : “+INQS +INQE Devices Found 0”

In the same time these two mobile phones working as a master detect CC41a as a slave with the help of HM BLE Terminal App.

Do I needed to use any APP to make mobile as slave which can be detected by the CC41a master?
Does anybody have already succeed using AT+INQ command on those CC41A?

To which all mobile phones does CC41a will act as a master?

Sam Protsenko
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Aby George
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1 Answers1

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According to this website it's likely we have a knock off Chinese board that only connects to other CC41a devices in slave mode. The solution appears to be to buy a better board!

Signs of a knock off board include:

  • It's missing a crystal in the top left corner (placing the Bluetooth antenna on top facing you) See http://wiki.makespacemadrid.org/images/7/72/HM-10-fake.jpg

  • It needs CR+LF terminated commands to reply. Original HM-10 will reply to any un-terminated AT commands

  • Doesn't support usual commands like AT+ADTY3 or AT+DELO2 needed for best performance as a beacon.

  • When you issue an unsupported command you don't get any reply at all in a clone

  • First commands you try, like AT+VERR? or AT+VERS? following usual guides don't return anything.

  • AT+VERSION returns this firmware: +VERSION=Firmware V3.0.6,Bluetooth V4.0 LE

Adam
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