Heartbeat Monitor Circuit with LED and Photocell

Description

SPICE simulation of an heartbeat monitor which reveals the heartbeat from the finger. The finger, inside a light screen, between an high intensity led emitter and a photocell, provides the heartbeat signal, which, suitably amplified, is used as input for a microcontroller PIC16F84. Three 7 segments common cathode displays, drived by the PIC, show the heart rate.

• Project Type: Free
• Complexity: Intermediate
• Components number: 31-50
• SPICE software: Proteus
• Software version: 7+
• Full software version nedeed : Yes
• Screenshots simulation images: