I finally decided to fork out for a SRC Bluetooth collar for my Schuberth crash helmet.
It's a brilliant bit of kit. Connects to my mobile phone easily. Will talk to a GPS or PMR radio. Has a built in FM radio (not great quality, but it works) and you can listen to your MP3s whilst you ride.
The big downside that I've found so far is that the charging socket is REALLY rubbish. I think they must have used a cheap connector or it's a slightly different standard to your usual Micro USB connector. I find it really difficult to connect the charger and not all standard Micro USB plugs will fit (thanks to the silly cowling)
My solution to this was to get hold of a PowerMat charging system. They're usually quite expensive and are used for charging small devices like your mobile phone or hand held gaming system.
I found them for sale on Amazon for about £5!... So I immediately ordered one and also a "PowerCube" (bit of an inaccurate name as it isn't a cube... but I guess 'PowerSquare' sounds a bit naff). Total cost for the Mat and Cube was £9.43 (That's about $15 USD)
So.... Bits needed:
The device you want to make wireless (in this case, a Schuberth C3 Helmet with SRC Bluetooth)
A Micro USB cable.
Heat Shrink tube (at least 40mm or 1.5in wide)
A needle and thread.
My apologies for the blurriness of some of these pics. Especially the finished product pics. Really need to get a better camera.
This pretty much goes without saying, but I take absolutely no responsibility for anything that goes wrong when recreating this project (including but not limited to : Frying USB devices due to wrong polarity. Alien Abduction. Soldering Iron burns. Piers Morgan. Any damage to your helmet)
This Instructable is not endorsed by Schuberth helmets in any way and is completely unofficial.
Step 1: Rip apart that PowerCube
Carefully prise apart the PowerSquare... err... I mean PowerCube.
You should find inside a circuit board held in place with glue.
Try and cut away some of the glue from the edges and very carefully prise out the circuit. Don't allow it to flex too much when doing this.
You can throw away the casing... you don't need it now.