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“DIY Laser Scanning Microscope made from a defective Blu-Ray Player. A Blu-ray player must be able to detect the microscopically tiny pits on DVDs in order to play back a film. Therefore, the question arises: Can a Blu-ray player also …
“The Stomp Shield for Arduino from Open Music Labs use an Arduino Uno and four opamps as a guitar effects box. Similar to the previous instructable that shows how to port the Electrosmash Uno Pedalshield, I have also ported the …
“I am a Biomedical Engineering (BME) graduate student at Purdue University. As a BME, I really enjoy making quick and easy projects that highlight some sort of physiological quantity. Heart rate is such an activity. There are numerous projects that …
“When I first built the Heart rate measurement through fingertip project, the infrared LED and photodiode used for finger photoplethysmography were actually from salvaged parts, and therefore, I could not provide specifications for them in the article. As a result …