{"id":3932,"date":"2025-09-08T10:03:56","date_gmt":"2025-09-08T10:03:56","guid":{"rendered":"https:\/\/projectkitsandparts.com\/?post_type=product&#038;p=3932"},"modified":"2025-10-07T05:13:27","modified_gmt":"2025-10-07T05:13:27","slug":"heartbeat-detector","status":"publish","type":"product","link":"https:\/\/projectkitsandparts.com\/index.php\/product\/heartbeat-detector\/","title":{"rendered":"Heartbeat Detector"},"content":{"rendered":"<p>A <b>heartbeat detector<\/b> is a biomedical instrument that plays a crucial role in <b>health monitoring systems<\/b>, used to measure a person\u2019s <b>pulse rate<\/b> non-invasively. These devices are designed to detect the small physical or optical changes in the body caused by the <b>rhythmic contraction and expansion of the heart<\/b>.<\/p>\n<p>The most common method uses a <b>pulse sensor<\/b> with a <b>photoplethysmography (PPG)<\/b> principle:<\/p>\n<ul>\n<li>An <b>infrared (IR) LED<\/b> shines light into the skin.<\/li>\n<li>A <b>photodetector (photodiode or phototransistor)<\/b> measures how much light is absorbed or reflected, which changes with blood volume.<\/li>\n<li>Each pulse causes a small fluctuation in the signal, which is processed using filters and amplifiers to detect heartbeats.<\/li>\n<\/ul>\n<p>Other methods use <b>piezo sensors<\/b> that detect pressure changes in the arteries, or even <b>ECG electrodes<\/b> for higher accuracy.<\/p>\n<p>Heartbeat detectors can be standalone devices or part of larger systems, such as <b>fitness trackers<\/b>, <b>smartwatches<\/b>, or <b>patient monitoring systems.<\/b><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A <b>heartbeat detector<\/b> is an essential device for monitoring heart health, providing real-time data about a person\u2019s pulse rate. Whether in a hospital, gym, or a DIY electronics project, it demonstrates how <b>biomedical signals<\/b> can be measured and processed using <b>sensors and electronics<\/b>. It\u2019s a valuable tool for both <b>personal health awareness<\/b> and <b>professional medical diagnostics<\/b>.<\/p>\n","protected":false},"featured_media":3933,"template":"","meta":[],"product_cat":[467,468],"product_tag":[],"class_list":{"0":"post-3932","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-electronics-project","7":"product_cat-zero-pcb-project","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/product\/3932","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/media\/3933"}],"wp:attachment":[{"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/media?parent=3932"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=3932"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/projectkitsandparts.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=3932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}