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Modul oximetru shield, modul, senzor puls, Arduino

Total tranziții: 12.

Adăugat: 19-09-2025

Va fi sters: 26-09-2025

Detalii: Modul oximetru shield, modul, senzor puls, Arduino 4,99 RON 10 RON Livrare in Bucuresti: - la domiciliu propriu (Str. Margeanului) - posta, curier ... Sector 5 Bucuresti Telefon validat azi Livrare in Bucuresti: - la domiciliu propriu (Str. Margeanului) - posta, curier e contra cost. Livrare in tara: - posta de la 20 lei - fancourier de la 27 lei cu verificare colet gratuit Description 1.This project uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse. Pulse monitor works as follows: The LED is the light side of the finger, and phototransistor on the other side of the finger, phototransistor used to obtain the flux emitted, when the blood pressure pulse by the finger when the resistance of the phototransistor will be slight changed. 2.Choosing a very high resistance resistor R1, because most of the light through the finger is absorbed,it is desirable phototransistor sensitive enough. Resistance can be selected by experiment to get the best results. The most important is to keep the shield stray light into the phototransistor. For home lighting that is particularly important because the lights at home mostly based 50HZ or 60HZ fluctuate, so faint heartbeat will add considerable noise. 5en50r l3d al3x r3d Publi24_1553891192

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