FAQFAQ   GalleryGallery   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in   Forum RSS Feed   Hacked Gadgets Main Site 

reading data from a heart rate belt

 
Post new topic   Reply to topic    Hacked Gadgets Forum Index -> New Projects Currently Being Developed
View previous topic :: View next topic  
Author Message
sliders_alpha
Semi Newbie


Joined: 19 Jan 2009
Posts: 8

PostPosted: Mon Nov 28, 2011 10:35 am    Post subject: reading data from a heart rate belt Reply with quote

Hi,

so today I took my hammer and opened my "Kalenji hear rate belt"

I was expecting to find a microcontroller and some kind of 433MHz emitter, instead there is only analog circuit Sad

I identified 2 circuit, one is a monostable, the other is a quad NOR gate.

Does any of you see something interesting in this?
I mean, do you know any wireless transmitter design wich uses a monostable and some NOR gate?

all I have is an low cost digital oscilloscope, since i'm not in college anymore I can't get my hand on some frequency analyser, etc

thanks

top board


bottom board


chips


datasheets can be found here :
http://sliders.alpha.free.fr/reverse_engineering
Back to top
View user's profile Send private message

Display posts from previous:   
Post new topic   Reply to topic    Hacked Gadgets Forum Index -> New Projects Currently Being Developed All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Powered by phpBB © 2001, 2005 phpBB Group