Cant connect the HM-10 bluetooth to Arduino Uno

Curnelious picture Curnelious · Nov 21, 2014 · Viewed 14.5k times · Source

I have tried everything, really, everything. The HM-10 module(bluetooth), has its led and its blinks, than if you connect to it from their app, the led stop blinking and you get the UUID on the iDevice.

Problem starts when you try to program the module from its UART and send "AT" to get "OK" , from the arduino serial monitor(on mac ) .

So, i was trying to connect its tx/rx via ttl converter to the arduino uno and send commands from the monitor, didn't work.

than i was trying to connect it directly and used this link : How to use BLE Shield based on HM-10 bluetooth module?

didn't work(no respond for "AT" ) .

I have also tried this : http://www.seeedstudio.com/wiki/Bluetooth_V4.0_HM-11_BLE_Module

and this: http://www.instructables.com/id/Control-RGB-lights-from-Android-with-Arduino-Bluet/step1/Assemble-test-configure-your-Bluetooth-LE-module/

With no respond .i dont get any respond from the module (module rx goes to tx on arduino )

I dont really know whats the deal with this module, maybe its broken ( if so, how can i connect to it from my iPad and get its UUID ?? ) .

Is there anything else i can do ?? is there an option that i have put it in some mode that it can't respond anymore ?

Answer

Christian Lacdael picture Christian Lacdael · May 16, 2015

I discovered my device is : BLE-CC41-A, a HM-10 rip off

The commands overlap a bit, but are different, a good command to help you out is:

AT+HELP/CR/LF

Doc for the BLE-CC41-A: http://img.banggood.com/file/products/20150104013200BLE-CC41-A_AT%20Command.pdf