Learn how to build your own DIY sensors. It’s easy, it’s fast and it costs almost nothing. Additionally, you will learn a lot about sensors.<\/p>\n\n\n\n
Check out our Video<\/a> if you do not feel like reading.<\/p>\n\n\n\n\n<\/iframe>\n<\/div><\/figure>\n\n\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-work\">How do sensors work<\/h2>\n\n\n\n<p>There are countless types of sensors. Sensors for measuring temperature, light, sound or forces, to name just a few. Every sensor is built differently and research is being done constantly on how to make them even better.<\/p>\n\n\n\n<p>Nevertheless, most sensors work on a similar principle. They are basically a variable resistor that responds to the input being measured.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Resistance-R.jpg\" alt=\"Resistance - R\" class=\"wp-image-2058\" style=\"width:346px;height:239px\" width=\"346\" height=\"239\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Resistance-R.jpg 958w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Resistance-R-300x207.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Resistance-R-768x531.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Resistance-R-18x12.jpg 18w\" sizes=\"auto, (max-width: 346px) 100vw, 346px\" \/><figcaption class=\"wp-element-caption\">Resistance – R<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Let’s look at temperature sensors as an example. For many materials the resistivity increases with rising temperature. In addition, most metals conduct heat very well, which means that they react fast to temperature changes.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Copper-Cu-1024x541.jpg\" alt=\"Copper - Cu\" class=\"wp-image-2057\" style=\"width:437px;height:230px\" width=\"437\" height=\"230\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Copper-Cu-1024x541.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Copper-Cu-300x158.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Copper-Cu-768x406.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Copper-Cu-18x10.jpg 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Copper-Cu.jpg 1253w\" sizes=\"auto, (max-width: 437px) 100vw, 437px\" \/><figcaption class=\"wp-element-caption\">Copper – Cu<\/figcaption><\/figure>\n<\/div>\n\n\n<p>So if you measure the resistance of a very thin copper wire, it will increase almost in realtime when the temperature rises.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"420\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Temperature-Sensor-Example-1024x420.jpg\" alt=\"Temperature Sensor Example\" class=\"wp-image-2154\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Temperature-Sensor-Example-1024x420.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Temperature-Sensor-Example-300x123.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Temperature-Sensor-Example-768x315.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Temperature-Sensor-Example-1536x630.jpg 1536w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Temperature-Sensor-Example-2048x840.jpg 2048w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Temperature-Sensor-Example-18x7.jpg 18w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Temperature Sensor Example<\/figcaption><\/figure>\n<\/div>\n\n\n<p>This change in resistance can be measured to calculate the temperature.<\/p>\n\n\n\n<p>Now that you know how most sensors work let’s build our own sensors!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"requirements\">Requirements<\/h2>\n\n\n\n<p>These materials are very cheap and you probably have most of them at home.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Pressure Sensor<\/strong><\/td><td><strong>Flex Sensor<\/strong><\/td><td><strong>Vibration Sensor<\/strong><\/td><\/tr><tr><td>Cardboard<\/td><td>Cardboard<\/td><td>Resistor (10 k\u03a9)<\/td><\/tr><tr><td>Aluminum foil<\/td><td>Aluminum foil<\/td><td>Copper wire (single strand)<\/td><\/tr><tr><td>Tape<\/td><td>Tape<\/td><td>Bolt or screw with ~ 3mm \u00d8<\/td><\/tr><tr><td>Glue<\/td><td>Glue<\/td><td>Hot glue gun<\/td><\/tr><tr><td>Scissors<\/td><td>Scissors<\/td><td><\/td><\/tr><tr><td>Copper wire<\/td><td>Copper wire<\/td><td><\/td><\/tr><tr><td>Pencil<\/td><td>Pencil<\/td><td><\/td><\/tr><tr><td>Paper<\/td><td>Paper<\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"pressure-sensor\">Pressure sensor<\/h2>\n\n\n\n<p>Cut two 2×2 cm squares from the cardboard, one 2×2 cm square from the paper and two 2×2 cm squares from the aluminum foil. For the contacts you can use the copper wire or jumper wires. Cut 4 cm off the copper wire or jumper wire and make sure to remove the insulation. Finally, use the pencil to shade both sides of the paper square completely black.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong><span style=\"color:#9b51e0\" class=\"tadv-color\">Note<\/span><\/strong> If you have Velostat at home you can use that instead of the shaded paper square.<\/p>\n<\/blockquote>\n\n\n\n<p>Now everything is ready for assembly.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1299-1024x502.jpg\" alt=\"Pressure sensor\" class=\"wp-image-2104\" style=\"width:353px;height:172px\" width=\"353\" height=\"172\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1299-1024x502.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1299-300x147.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1299-768x377.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1299-1536x753.jpg 1536w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1299-2048x1005.jpg 2048w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1299-18x9.jpg 18w\" sizes=\"auto, (max-width: 353px) 100vw, 353px\" \/><figcaption class=\"wp-element-caption\">Pressure sensor<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Take a cardboard square and apply glue to one side. Glue a contact so that it is slightly next to the center and protrudes about 2 cm. Cover everything with one of the aluminum foil squares.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Pressure-sensor-and-Flex-sensor-1024x982.jpg\" alt=\"Pressure and Flex sensors\" class=\"wp-image-2108\" style=\"width:400px;height:383px\" width=\"400\" height=\"383\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Pressure-sensor-and-Flex-sensor-1024x982.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Pressure-sensor-and-Flex-sensor-300x288.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Pressure-sensor-and-Flex-sensor-768x736.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Pressure-sensor-and-Flex-sensor-13x12.jpg 13w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Pressure-sensor-and-Flex-sensor.jpg 1434w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><figcaption class=\"wp-element-caption\">Pressure and Flex sensors<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Now build an identical copy with the remaining cardboard, contact and aluminum foil. After that put the shaded paper square between the to aluminum foil squares like a sandwich – a cardboard, wire, aluminum foil, paper, aluminum foil, wire, cardboard sandwich.<\/p>\n\n\n\n<p>To conclude the build, wrap everything firmly with the tape.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"flex-sensor\">Flex sensor<\/h2>\n\n\n\n<p>The flex sensor is similar to the pressure sensor the only difference is the size. For the flex sensor you need to cut anything into rectangles instead of squares.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1300-1024x447.jpg\" alt=\"Flex sensor\" class=\"wp-image-2093\" style=\"width:467px;height:203px\" width=\"467\" height=\"203\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1300-1024x447.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1300-300x131.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1300-768x335.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1300-1536x670.jpg 1536w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1300-2048x893.jpg 2048w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1300-18x8.jpg 18w\" sizes=\"auto, (max-width: 467px) 100vw, 467px\" \/><figcaption class=\"wp-element-caption\">Flex sensor<\/figcaption><\/figure>\n<\/div>\n\n\n<p>I used 1×6 cm rectangles because I need this format for a future project.<\/p>\n\n\n\n<p>Any guesses what that could be? Leave them in the comments \ud83d\ude00<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"vibration-sensor\">Vibration sensor<\/h2>\n\n\n\n<p>Building a vibration sensor is very easy. Wrap the copper wire around a screw to obtain a spring. Then straighten one of the sides. This serves as contact later. The spring should be very wobbly. I was using 0.6 mm \u00d8 copper wire and found 5 cm to be a good final length for the spring.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Vibration-sensor-577x1024.jpg\" alt=\"Vibration sensor\" class=\"wp-image-2107\" style=\"width:256px;height:454px\" width=\"256\" height=\"454\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Vibration-sensor-577x1024.jpg 577w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Vibration-sensor-169x300.jpg 169w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Vibration-sensor-768x1364.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Vibration-sensor-7x12.jpg 7w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/Vibration-sensor.jpg 773w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><figcaption class=\"wp-element-caption\">Vibration sensor<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Now glue the resistor into the spring with the hot glue gun. One of the leads will be the second contact. The other lead needs to be perfectly centered while the glue dries so that it doesn’t touch the spring.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1298-1-1024x386.jpg\" alt=\"Vibration sensor\" class=\"wp-image-2101\" style=\"width:479px;height:180px\" width=\"479\" height=\"180\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1298-1-1024x386.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1298-1-300x113.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1298-1-768x290.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1298-1-1536x580.jpg 1536w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1298-1-2048x773.jpg 2048w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1298-1-18x7.jpg 18w\" sizes=\"auto, (max-width: 479px) 100vw, 479px\" \/><figcaption class=\"wp-element-caption\">Vibration sensor<\/figcaption><\/figure>\n<\/div>\n\n\n<p>In a motionless stadium the resistor and the spring don’t touch and hence the current can’t flow. Once the sensor vibrates due to impact, the resistor and the spring touch and close the circuit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"testing\">Testing the sensors<\/h2>\n\n\n\n<p>The quickest and easiest way to test the sensors is to use a digital multimeter.<\/p>\n\n\n\n<p>Plug the black probe into <strong>COM<\/strong> and the red probe into <strong>\u03a9<\/strong>. Then turn the dial to <strong>\u03a9<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1297-1-768x1024.jpg\" alt=\"Test sensors with a digital multimeter\" class=\"wp-image-2095\" style=\"width:386px;height:514px\" width=\"386\" height=\"514\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1297-1-768x1024.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1297-1-225x300.jpg 225w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1297-1-1152x1536.jpg 1152w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1297-1-1536x2048.jpg 1536w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1297-1-9x12.jpg 9w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/04\/IMG-1297-1-scaled.jpg 1920w\" sizes=\"auto, (max-width: 386px) 100vw, 386px\" \/><figcaption class=\"wp-element-caption\">Test sensors with a digital multimeter<\/figcaption><\/figure>\n<\/div>\n\n\n<p>To test a sensor connect one probe to one of the contacts and the other probe to the other contact. Then you can press or bend, or shake the sensor to see if it is working.<\/p>\n\n\n\n<p>Of course each sensor will behave differently, but you can for example measure the flex angle of a flex sensor and note down the corresponding resistance. Then you can read out the resistance of that sensor using an <strong>ADC<\/strong> (<strong>A<\/strong>nalog <strong>D<\/strong>igital <strong>C<\/strong>onverter) to measure the corresponding flex angle.<\/p>\n\n\n\n<p>Here are some project ideas for the sensors in case you need some inspiration.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Build a floor mat with integrated Pressure sensors that triggers the lights if a person steps on it<\/li>\n\n\n\n<li>Build a protractor from a Flex sensor to measure angles<\/li>\n\n\n\n<li>Hook up a Vibration sensor to your laundry machine so that you get notified when the laundry is done<\/li>\n<\/ul>\n<div class=\"shariff shariff-align-center shariff-widget-align-left shariff-buttonstretch\"><ul class=\"shariff-buttons theme-white orientation-horizontal buttonsize-medium\"><li class=\"shariff-button twitter shariff-nocustomcolor\" style=\"background-color:#595959\"><a href=\"https:\/\/twitter.com\/share?url=https%3A%2F%2Fpicockpit.com%2Fraspberry-pi%2Fdiy-sensors%2F&text=DIY%20Sensors\" title=\"Share on X\" aria-label=\"Share on X\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#000; color:#000\" target=\"_blank\"><span class=\"shariff-icon\" style=\"fill:#000\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\"><path fill=\"#000\" d=\"M14.258 10.152L23.176 0h-2.113l-7.747 8.813L7.133 0H0l9.352 13.328L0 23.973h2.113l8.176-9.309 6.531 9.309h7.133zm-2.895 3.293l-.949-1.328L2.875 1.56h3.246l6.086 8.523.945 1.328 7.91 11.078h-3.246zm0 0\"\/><\/svg><\/span><span class=\"shariff-text\" style=\"color:#000\">share<\/span> <\/a><\/li><li class=\"shariff-button facebook shariff-nocustomcolor\" style=\"background-color:#4273c8\"><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fpicockpit.com%2Fraspberry-pi%2Fdiy-sensors%2F\" title=\"Share on Facebook\" aria-label=\"Share on Facebook\" role=\"button\" rel=\"nofollow\" class=\"shariff-link\" style=\"; background-color:#3b5998; color:#3b5998\" target=\"_blank\"><span class=\"shariff-icon\" style=\"fill:#3b5998\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 18 32\"><path fill=\"#3b5998\" d=\"M17.1 0.2v4.7h-2.8q-1.5 0-2.1 0.6t-0.5 1.9v3.4h5.2l-0.7 5.3h-4.5v13.6h-5.5v-13.6h-4.5v-5.3h4.5v-3.9q0-3.3 1.9-5.2t5-1.8q2.6 0 4.1 0.2z\"\/><\/svg><\/span><span class=\"shariff-text\" style=\"color:#3b5998\">share<\/span> <\/a><\/li><li class=\"shariff-button telegram shariff-nocustomcolor\" style=\"background-color:#4084A6\"><a href=\"https:\/\/telegram.me\/share\/url?url=https%3A%2F%2Fpicockpit.com%2Fraspberry-pi%2Fdiy-sensors%2F&text=DIY%20Sensors\" title=\"Share on Telegram\" aria-label=\"Share on Telegram\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#0088cc; color:#0088cc\" target=\"_blank\"><span class=\"shariff-icon\" style=\"fill:#0088cc\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 32 32\"><path fill=\"#0088cc\" d=\"M30.8 6.5l-4.5 21.4c-.3 1.5-1.2 1.9-2.5 1.2L16.9 24l-3.3 3.2c-.4.4-.7.7-1.4.7l.5-7L25.5 9.2c.6-.5-.1-.8-.9-.3l-15.8 10L2 16.7c-1.5-.5-1.5-1.5.3-2.2L28.9 4.3c1.3-.5 2.3.3 1.9 2.2z\"\/><\/svg><\/span><span class=\"shariff-text\" style=\"color:#0088cc\">share<\/span> <\/a><\/li><li class=\"shariff-button reddit shariff-nocustomcolor\" style=\"background-color:#ff5700\"><a href=\"https:\/\/www.reddit.com\/submit?url=https%3A%2F%2Fpicockpit.com%2Fraspberry-pi%2Fdiy-sensors%2F\" title=\"Share on Reddit\" aria-label=\"Share on Reddit\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#ff4500; color:#ff4500\" target=\"_blank\"><span class=\"shariff-icon\" style=\"fill:#ff4500\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\"><path fill=\"#ff4500\" d=\"M440.3 203.5c-15 0-28.2 6.2-37.9 15.9-35.7-24.7-83.8-40.6-137.1-42.3L293 52.3l88.2 19.8c0 21.6 17.6 39.2 39.2 39.2 22 0 39.7-18.1 39.7-39.7s-17.6-39.7-39.7-39.7c-15.4 0-28.7 9.3-35.3 22l-97.4-21.6c-4.9-1.3-9.7 2.2-11 7.1L246.3 177c-52.9 2.2-100.5 18.1-136.3 42.8-9.7-10.1-23.4-16.3-38.4-16.3-55.6 0-73.8 74.6-22.9 100.1-1.8 7.9-2.6 16.3-2.6 24.7 0 83.8 94.4 151.7 210.3 151.7 116.4 0 210.8-67.9 210.8-151.7 0-8.4-.9-17.2-3.1-25.1 49.9-25.6 31.5-99.7-23.8-99.7zM129.4 308.9c0-22 17.6-39.7 39.7-39.7 21.6 0 39.2 17.6 39.2 39.7 0 21.6-17.6 39.2-39.2 39.2-22 .1-39.7-17.6-39.7-39.2zm214.3 93.5c-36.4 36.4-139.1 36.4-175.5 0-4-3.5-4-9.7 0-13.7 3.5-3.5 9.7-3.5 13.2 0 27.8 28.5 120 29 149 0 3.5-3.5 9.7-3.5 13.2 0 4.1 4 4.1 10.2.1 13.7zm-.8-54.2c-21.6 0-39.2-17.6-39.2-39.2 0-22 17.6-39.7 39.2-39.7 22 0 39.7 17.6 39.7 39.7-.1 21.5-17.7 39.2-39.7 39.2z\"\/><\/svg><\/span><span class=\"shariff-text\" style=\"color:#ff4500\">share<\/span> <\/a><\/li><\/ul><\/div>","protected":false},"excerpt":{"rendered":"<p>Learn how to build your own DIY sensors. It’s easy, it’s fast and it costs almost nothing. Additionally, you will learn a lot about sensors. Check out our Video if you do not feel like reading. How do sensors work There are countless types of sensors. Sensors for measuring temperature, light, sound or forces, to…<\/p>\n","protected":false},"author":3,"featured_media":2151,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[220,3],"tags":[184,190,189,191,188,187,186,185,192],"class_list":["post-2054","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-raspberry-pi-projects","category-raspberry-pi-how-to","tag-diy","tag-flex-sensor","tag-pi","tag-pressure-sensor","tag-raspberry","tag-raspberry-pi","tag-sensor","tag-sensors","tag-vibration-sensor"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DIY Sensors | PiCockpit<\/title>\n<meta name=\"description\" content=\"Learn how to build your own DIY sensors. It's easy, it's fast and it costs almost nothing. 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