![]() ![]() This finger heart rate sensor measures the pulse in your fingers by using an infrared IR LED and an optical transistor. The sensor has a great design allowing you to attach biomedical sensor pads for easily connect your muscles to the Arduino.įor an Arduino sensor it may seem quite expensive (costs approximately $40), but what it allows you to do, definitely worth it. This makes it possible to control stuff by contracting and relaxing the muscles. The myoware muscle sensor measures the electrical activity of a muscle, giving an output voltage between 0 and 5V (in case you’re powering up the sensor with 5V) depending on the amount of activity in a muscle. This sensor is really cool and I had no idea it could be so cheap to control things by measuring muscle activity. So, strong emotions will result in more sweating on the skin, resulting in changes on the skin electrical conductance.Īs the skin electric properties change with emotions, this kind of sensor is used in lie detectors (polygraphs) to detect changes in the person’s physiological state ( view on eBay). The sweat glands are controlled by the sympathetic nervous system that can be aroused by strong emotions. The skin conductance changes accordingly to the amount of sweat on the skin. This module allows you to measure galvanic skin response by measuring the electrical conductance of the skin. You can get one for approximately $3 ( view on eBay). ![]() There are an example code and a Processing sketch for visual data here. To measure the heart rate, you just need to clip the sensor in your earlobe or fingerprint. This sensor has an optical heart rate sensor with amplification and circuit for noise reduction, giving fast and reliable pulse readings. The sensor can be easily powered up using the Arduino 5V pin. It is very easy to use with your Arduino, as it only requires one analog data pin, VCC and GND. You can download the fingerprint images from the device and read and write fingerprint templates and a database. ![]() It can store up to 20 fingerprints and is capable of 360º fingerprint recognition. It does all the complicated stuff such as reading and identifying the fingerprints with an optical sensor and a 32-bit CPU. Fingerprint scanner (GT511C1R)įingerprint scanning can be easy if you use this sensor (GT511C1R). You can get one for approximately $15 ( view on eBay). There are libraries and full documentation to help you get started with this module. This is a cool and easy to use fingerprint reader. In this post I’ll share with you a list of 9 biometric sensors Arduino compatible that you can use in your bioengineering experiments. These are great for hobbyist projects since most of them are easy to deal with. ![]()
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