Hi
Does anybody out there have docs for this old Bluetooth shield downloaded from back then?
At my school we have a number of this, But we do not have documentation, nor can I find example code. The company Wiki page for the shield exists, but the downloads are no longer accessible, it seems.
The reason I need the docs is that most of the shields register as "active", i.e. connected, when placed on an Arduino UNO. The LED marked D1 is not blinking. However, there are no devices which have connected to those shields, and the shields themselves do not broadcast a name. A few of the shields can be accessed, i.e. are visible and can be connected to and disconnected from. I would very much like to be able to use them all, i.e. to somehow reset the unaccessible shields.
Those devices are HC-06 simply stuck on a shield rather than the usual breakout board, surrounded by technobabble, and sold at an extortionate price. The Wiki you refer to tells you almost everything you need to know. What it doesn't tell you is how to use it but there really isn't much to know, and better photos of both sides of the shield might help with the details. To prove them working, I imagine all you need do is ensure the power is properly applied, and LED 6 flashing would confirm this. Bluetooth should then identify as LINVOR on an Android phone.
@Wawa Thanks - that website had eluded me. However, the datasheet appears to be identical to what is online, unfortunately. No further info - in particular, there is a pushbutton just by the switches and the D1 LED, which I would like to know a little bit more about. The schematics provide a little bit more, perhaps - but also has some odd discrepancies with respect to the datasheet.
I am pretty sure the module is an HC-06, though.
@Nick_Pyner "almost" is the key word here. The challenge for me is to find out how to reset the boards when they have been set up with new pin codes, names etc. and they no longer respond to pairing attempts or to AT-commands sent from the PC. I still have one board which sometimes appears to be visible from my phone when powered, but identifies itself in a peculiar way and announces a 6-digit access code to use but provides nowhere to put it. And sometimes it is gone. I have no idea what is going on.
If you really want to know what the button does, the best thing you can do is push it. It IS on a legitimate reset pin and therefore can do no harm, but nobody else uses it. The best function I can see for it is that it will break communications mode, thereby reverting to AT mode 9600 baud.
There are two LEDs on the board, just to add to the confusion, as opposed to the standard breakout boards that use only one. One is for power, that I assume responds to applied power as you might expect, and the other shows the state of the Device. It should flash when power is applied, telling you it is in AT mode but ready to connect, and it should go solid when communication is established.
AT+ORGL restores the factory default settings. The password is four digits only, default 1234, If you see anything else, I can only conclude that it is coming from somewhere else. In the light of that, I suggest you feed power to the shield via jumpers thereby ensuring that Arduino serves no other purpose than simply provide power for Bluetooth. I guess another option is to upload a blank programme.