bluetooth audio to mechanical device.

Projects General Guidance
1

Hello,

First off I'm a biologist and the only thing I know about electronics is the button end of the battery is the positive end. So please forgive for what will likely be dumb or obvious questions.

I'm trying to make a watch sized device that will take the audio signal from a laptop (chromebook) and activate a vibration motor, so no actual audio output. I am trying to build a prototype using a HC-05 (05).

I can get the 05 to pair with my phone, chromebook, and mac but it will not connect, I get an error or it says “not connected”. So I can't even get to the point of trying to connect the vibrator to the 05 to see if it will activate. I have also been able to TTY into the 05 to check parameters and change the name of the 05.

Everything I have found online regarding using the HC-05 is always associated with an arduino.

So is an arduino, or similar board, required to make any bluetooth module communicate with an audio source?

Is this project even feasible with or with out an arduino?

Thanks for any help or guidance.

2

The HC-05 is only a transceiver, an Arduino is required to process the data received by the HC-05.

3

Thanks for the clarification. So I can use the hc-05 connected to an arduino connected to the motor, which then needs programing?
So is it the arduino that actually connects to the laptop?
I've also looked at some instructables on bluetooth speakers that just have amplifiers, no arduinos. These instructables are sparse on the actual parts they use. Is that a possibility? I am not opposed to using arduinos. I'm just concerned about size of all these pieces.

4

Any controller can be used with a BT module. Also look for Arduinos with integrated BT.

5

I didn't know they came with integrated bt.

is this what you'r talking about?
https://www.amazon.com/DFRobot-Beetle-BLE-Arduino-Bluetooth/dp/B014KQHEH6/ref=sr_1_10?hvadid=241903167528&hvdev=c&hvlocphy=9022814&hvnetw=g&hvpos=1t1&hvqmt=e&hvrand=3191247056314405571&hvtargid=kwd-30165826293&keywords=arduino+bt&qid=1551801469&s=gateway&sr=8-10&tag=googhydr-20

6

Yes, like that.