Hi, for my physics task I have to build a pedometer. When connecting my HC-05 Bluetooth module to the Lilypad Arduino it blinks fast, which is a good thing I think? My problem is that I am not able to detect the module with my Phone (samsung). I know the module works because I managed to connect before and now I am not anymore. The module doesn’t show up in the list of Bluetooh devices. Is there an easy solution or should I buy a new module? Please help my task is due to begin march.
I am using:
a 3,6V battery,
3-axis accelerometer (upto 5V)
Arduino Lilypad (arduino uno to upload the code),
HC-05 bluetooth module
What did You change that made the connect drop off?
BT is not my native playground so I suggest searching this forum for " Arduino BT phone". Try Google with the same kind of argument.
If it can be done, it has been done!
What's that? Since you have a Uno, I suggest you test it on 5v with that.
You only need power to pair with the phone, and you have said nothing to suggest you need to replace the HC-05. Indeed, the fast flashing suggests it is fine.
We are using a 3,6V because of the accelerometer. I also tried it with 4,5V and whilst connecting the lilipad to uno to a pc, so 5v it still doesn’t work.
The terms that I hear with Bluetooth are pair and connect. You pair the HC05 with a Bluetooth capable device like a phone or tablet. Then you connect the paired HC05 to a Bluetooth app like Serial Bluetooth Terminal.
So when you say that the HC05 does not connect, do you mean that it won't pair with the device or that it will pair, but not connect to your app?
Either something is wrong in the wiring and a circuit is toast, or an accidental move of a cable is the reason.
Sorry but Your colourful picture mostly show the dimension of things, and their anonymous pins. Not useful.
Apart from being out of focus, there is nothing wrong with your well-annotated diagram, but there is nothing relevant about it either. You've got the flashing LED, it signifies power on ready to connect, and that should be all you need. The only function of Arduino is to provide power, and my only question is: is there enough of it? It may be possible to flash the LED but not have the steam to send a signal.
Your post #8 is incoherent. I meant power Bluetooth directly from the Uno 5v pin, something everybody understands, and Uno connected to a kosher power source. No need for the comms connections.
Apart from a buggered module, your problem may be at the phone end, but I guess you already know that you sniff for Bluetooth in the phone settings, not in a BLE terminal.
