I've recently purchased a couple of HC-06 (at least the seller claimed them as HC-06) Bluetooth modules and I've been having trouble with detecting them as a device.
As far as I've seen on forums, all you need to do to pair your HC-06 with another device via Bluetooth is to power it up appropriately and find it as you'd find any other Bluetooth peripheral. I can't even detect it however! Red blinking led on the board (shows it's unpaired) and blank results on my scanning for devices.
I've noticed that the board is a bit different than anything else I've seen online so I was wondering if anyone can give me some insight on it. Here's a picture of the board itself :
The picture looks just like an HC-06 to me. If you have seen others with six pins, they are HC-05s not HC-06s. It might not be you. My first tablet would not look at my HC-06. I blame the tablet. If the LED is flashing, there is nothing to suggest a problem with HC-06. Beg borrow or steal another Android to test it.
Nick_Pyner:
The picture looks just like an HC-06 to me. If you have seen others with six pins, they are HC-05s not HC-06s. It might not be you. My first tablet would not look at my HC-06. I blame the tablet. If the LED is flashing, there is nothing to suggest a problem with HC-06. Beg borrow or steal another Android to test it.
Tried it with two android devices, an ASUS laptop and an Iphone 6. Didn't find it on either of these devices.
I actually said Android and for good reason. It is the most bulletproof way to connect with SPP bluetooth. The ASUS may be appropriate, so long as it will happily talk to other bluetooth. I guess the iPhone may be able to pair with HC-06, but I'm not sure and it is a bad choice.
I have experience on HC-05 and not HC-06; yet, I have to remind you about the logic sifter circuit for the RX-pin of HC-06. The connection diagram is depicted below.
Well, it is only $3-50 for another one to "test-by-substitution" and, since you have tested with Android, it is about the only option left - if only to prove HC-06 is innocent. As I said in reply #1, the flashing LED should be all you need, Arduino does nothing more than supply the power and no code or other wiring need be considered.
I would suggest you get an HC-05. They are the same price these days, more versatile, and not really that hard to configure. The tablet I was suss about worked OK with an HC-05. The HC-06 was fine with every other Android I have had, and is the bluetooth I use most.
Red blinking led on the board (shows it's unpaired) and blank results on my scanning for devices.
Yeah, I know about the divider and all that. Well, I suppose I'll pick another one from a different seller with the hope he isn't a cheat. Thanks for the info guys!