Heart Beat Rate Meter


Hey guys I was just looking at the diagram for this circuit and was wondering what is the photocell being used, I am unfamiliar with a 220E.

01000100



D1 is LED which is ultra bright and R1 is LDR value is 220....

this is a scanning mechanism these two are placed together as when you place thumb these two should have to be under your thumb....



LED will illuminate thumb and LDR will detect light and a s... Read Compelte post
Posted by coolmirza143 on Wed Feb 16 2011, 03:31 pm

Downloads

Comments

oprfid123
Tue Aug 16 2022, 07:14 am
Quincysmono
Sun Aug 14 2022, 07:28 pm
Geralddor
Sun Aug 14 2022, 05:05 pm
Scottcrads
Sun Aug 14 2022, 07:55 am
SteverPak
Sat Aug 13 2022, 08:25 am
mumesueteenly
Fri Aug 12 2022, 06:03 am
WarfaceHab
Fri Aug 12 2022, 04:53 am
Valeria_pt
Fri Aug 12 2022, 03:38 am