PIC16F84 Parmaktan nabız ölçer assemly led display

Bir önceki yazıda paylaşılan projeye alternatif pic16f84 ile yapılmış parmaktan nabız ölçüm projesi yazılım assemly ile hazırlanmış. Devrede Fotosel ve led arasına konulan parmak üzerindeki ışık yansıması ile ölçüm yapılıyor Parmaktaki atar damar atışlarına göre değişen kan hacminini Led display üzerinde görüntüleniyor.

Heartbeat Monitor (HeMon)

Here is a circuit from Keith Wilson in Germany for monitoring your heart. The text that follows is his:

The heartbeat monitor was originally designed many years ago….

One day whilst walking through the town centre in Manchester (probably on the way to Maplin!), I came upon a heartbeat measuring machine – here, you had to place a finger into a “thimble”-like sensor, and hey presto, your hearbeat was measured and shown on a large LED display! Back then, I only had a very vague idea as to how something like that actually worked, but after looking in magazines, and tinkering around, I came up with a small circuit.
For HeMon, the original circuit has been preserved, the PIC micrcontroller and LED display were added several years later.

Kalp Atışı Monitörü Devre Şeması

Kaynak: j.mp/bwUkHu