{"id":6550,"date":"2013-10-19T18:24:09","date_gmt":"2013-10-19T18:24:09","guid":{"rendered":"http:\/\/178.62.14.192\/?p=6550"},"modified":"2013-10-19T18:24:09","modified_gmt":"2013-10-19T18:24:09","slug":"experimenting-with-the-easy-pulse-and-raspberrypi","status":"publish","type":"post","link":"https:\/\/www.recantha.co.uk\/blog\/?p=6550","title":{"rendered":"Experimenting with the Easy Pulse and #RaspberryPi"},"content":{"rendered":"

\"\"<\/p>\n

As part of my Picorder<\/a>\u00a0project, I bought an Easy Pulse from Embedded Lab<\/a> (via Elecrow<\/a>). It’s a red PCB with a plugin fingertip sensor (see above). The\u00a0example code you can download is in C<\/a> and my Picorder code is in Python. Plus, their code does a lot of messing about with filtering and removing bits and pieces that I really couldn’t be bothered with. Most of theirs is to do with plotting the pulses on a graph as well, and I don’t need that. So, I wrote my own version in Python. I’m once again using the Key Lime Pi from Nwazet<\/a> which is essentially an MCP3008 ADC slapped onto a Pi cobbler breakout board. (I’m being very ungenerous there – it’s a brilliant, brilliant product. You can buy it in the UK from Pimoroni<\/a>).<\/p>\n

\"\"<\/p>\n

Anyway, so we’ve got Fingertip sensor->Easy Pulse board->Key Lime Pi->Raspberry Pi. The Python code is available at:<\/p>\n

https:\/\/github.com\/recantha\/picorder-v3\/blob\/master\/test-ep.py<\/a><\/p>\n

I would have pasted it here but WordPress isn’t playing ball!<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

As part of my Picorder\u00a0project, I bought an Easy Pulse from Embedded Lab (via Elecrow). It’s a red PCB with a plugin fingertip sensor (see above). The\u00a0example code you can download is in C and my Picorder code is in…<\/p>\n

Read more →<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[20,37,39],"tags":[],"class_list":["post-6550","post","type-post","status-publish","format-standard","hentry","category-gpio-boards","category-picorder","category-programming"],"yoast_head":"\nExperimenting with the Easy Pulse and #RaspberryPi - Raspberry Pi Pod<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.recantha.co.uk\/blog\/?p=6550\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Experimenting with the Easy Pulse and #RaspberryPi - Raspberry Pi Pod\" \/>\n<meta property=\"og:description\" content=\"As part of my Picorder\u00a0project, I bought an Easy Pulse from Embedded Lab (via Elecrow). 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The\u00a0example code you can download is in C and my Picorder code is in…Read more →\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.recantha.co.uk\/blog\/?p=6550\" \/>\n<meta property=\"og:site_name\" content=\"Raspberry Pi Pod\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/recantha\/\" \/>\n<meta property=\"article:published_time\" content=\"2013-10-19T18:24:09+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2013\/06\/EasyPulseV1.1Board3.jpg\" \/>\n<meta name=\"author\" content=\"Michael Horne\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@recantha\" \/>\n<meta name=\"twitter:site\" content=\"@recantha\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Michael Horne\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=6550#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=6550\"},\"author\":{\"name\":\"Michael Horne\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263\"},\"headline\":\"Experimenting with the Easy Pulse and #RaspberryPi\",\"datePublished\":\"2013-10-19T18:24:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=6550\"},\"wordCount\":196,\"commentCount\":2,\"publisher\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=6550#primaryimage\"},\"thumbnailUrl\":\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2013\/06\/EasyPulseV1.1Board3.jpg\",\"articleSection\":[\"GPIO boards\",\"Picorder\",\"Programming\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.recantha.co.uk\/blog\/?p=6550#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=6550\",\"url\":\"https:\/\/www.recantha.co.uk\/blog\/?p=6550\",\"name\":\"Experimenting with the Easy Pulse and #RaspberryPi - 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Until now, I just haven't had the time to record video. The Picorder is a Pi\/Arduino combination taking readings from 2 temperature sensors, a hall-effect magnetism sensor and an ultrasonic distance sensor which it then\u2026","rel":"","context":"In "Arduino"","block_context":{"text":"Arduino","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=55"},"img":{"alt_text":"SAMSUNG","src":"\/blog\/wp-content\/uploads\/2013\/03\/060320131-300x225.jpg","width":350,"height":200},"classes":[]},{"id":21005,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=21005","url_meta":{"origin":6550,"position":1},"title":"The PicoPicorder – a work-in-progress prototype using a Raspberry Pi Pico and lots of components from Pimoroni and Adafruit!","author":"Michael Horne","date":"5 April 2021","format":false,"excerpt":"During March, and for the past week as well, I've been working on the latest iteration of my Picorder project. This project, which has been my \"go-to project\" for the past 9 years (gulp!) is now running from a Raspberry Pi Pico and uses lots and lots of sensors and\u2026","rel":"","context":"In "Audio"","block_context":{"text":"Audio","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=4"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2021\/04\/PicoPicorder-prototyping-stage_sm.jpg?fit=1200%2C898&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2021\/04\/PicoPicorder-prototyping-stage_sm.jpg?fit=1200%2C898&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2021\/04\/PicoPicorder-prototyping-stage_sm.jpg?fit=1200%2C898&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2021\/04\/PicoPicorder-prototyping-stage_sm.jpg?fit=1200%2C898&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2021\/04\/PicoPicorder-prototyping-stage_sm.jpg?fit=1200%2C898&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1169,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=1169","url_meta":{"origin":6550,"position":2},"title":"Raspberry Pi and Arduino – thank you Dr Monk!","author":"Michael Horne","date":"3 January 2013","format":false,"excerpt":"Very informative post on Dr Monk's blog about connecting an Arduino to the Pi and reading serial information using Python. Helped me have a very successful evening getting a Hello World experiment working. Saved my Pi from the bin, too! Dr. Monk's DIY Electronics Blog: Raspberry Pi and Arduino.","rel":"","context":"In "Arduino"","block_context":{"text":"Arduino","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=55"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":60,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=60","url_meta":{"origin":6550,"position":3},"title":"Connect up a 16×2 LCD to GPIO","author":"Michael Horne","date":"4 October 2012","format":false,"excerpt":">Project \u2013 Raspberry Pi - 16x2 LCD - Fritzing: Above is a link to my Fritzing page showing my circuit diagram for connecting a 16x2 LCD module to the Raspberry Pi.I based it on\u00a0http:\/\/www.raspberrypi-spy.co.uk\/2012\/07\/16x2-lcd-module-control-using-python\/\u00a0but wanted to play around with the Fritzing software anyway.I've now taken it apart and will re-assemble\u2026","rel":"","context":"In "Making"","block_context":{"text":"Making","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=50"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/fritzing.org\/media\/projects\/thumbs\/header\/LCD_bb.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":1978,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=1978","url_meta":{"origin":6550,"position":4},"title":"PiSerial #Arduino Communication Library from Code and Life","author":"Michael Horne","date":"8 February 2013","format":false,"excerpt":"Libraries for communicating between the Raspberry Pi and the Arduino are starting to become something of a fashion. And there's a new kid on the block: PiSerial. Read about\u00a0PiSerial on Code and Life. \u00a0","rel":"","context":"In "Arduino"","block_context":{"text":"Arduino","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=55"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4911,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=4911","url_meta":{"origin":6550,"position":5},"title":"Picorder, version 2 – #RaspberryPi has sensor-y overload","author":"Michael Horne","date":"2 July 2013","format":false,"excerpt":"Pardon the pun in the title, couldn't resist. Here is a two-part video I've just shot of the Picorder version 2. I'm just about to work on version 3, so it seemed the perfect time to document my work so far. 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