Hi everyone,

I have been looking into external devices to help me lucid dream. I've seen a few posted on here but I wanted to make one of my own. I was first going to make a mask with LEDs over the eyes using an arduino kit, but that was coming in at about £50. A cheaper solution was to take a vibrating bluetooth bracelet and make it vibrate at certain intervals and see what happens.

I bought this bracelet: http://www.lm-technologies.com/home/...tooth-bracelet

I picked it up from Best Offer By for about £13 delivered so it was worth a punt.

It's quite loose on my wrist which is good because I didn't want the sensation to be too strong against my arm. It's my first night tonight so if it is too strong, I'll probably put a sweat band or something underneath it to reduce the sensation.

I'm a software developer by trade, and thought it would be fairly trivial to use linux and a bluetooth adaptor to emulate a phone, and make the bracelet vibrate whenever I wanted it too. It turns out that it's not easy at all, and there is no one else out there that has attempted something similar. (If anyone out there has done any work with bluez-utils / hcitool and emulate a bluetooth phone class, I would love to hear from you! )

So I have resorted to pairing the bracelet with my phone as it is intended, and writing a quick bash script in linux which generates a call using the asterisk software pbx at my work. This will "one bell" me at a predefined time. I have timed the call so it disconnects after one ring and therefore one vibrate.

If it works, I will look more into emulating a phone via a bluetooth adaptor so times can be easily set by a user (and not require a bloomin' pbx). If it doesn't I'll make the LED mask!

I'll update this with my progress if anyone is interested