In this project, We’ll try to get some information from the human body by using simple sensors and Arduino. You can use this information to create a lie detector machine. At the end of this article, you :Know Polygraph and basics of measuring and recording physiological indicators.Will be familiar w…By: Electropeak Continue Reading » Instructables:(…)
I have many old CD and DVD writer of PC and laptop.I tear down many of them. These employs highly accurate stepper motor(DVD and lens movement) and simple DC motor (For opening and closing tray). I use it for 3D printer and mini CNC machine. But only part it left is circuit board and DVD(…)
3D printer smoke detectorI built this smoke detector with the hope of feeling more at ease when leaving my printer overnight or going out while its still running. If you had to be around monitoring your printer for every print, you would never leave the house!The smoke detector is built with an atme…By: AnthonyH3 Continue(…)
I’m fortunate enough to have an old Coke machine that I use for, er, "refreshments". It holds about 30ish cans when full. The trouble is, how many cans are in it at any given time? When do I need to make a run to replenish the machine?A solution (apart from opening the machine all the(…)
Completed by Kristen Stevens, Karem Gonzalez, and Leslye SaavedraAn electrostatic polarity detector can be used to detect if an object is negatively or positively charged. We followed the steps from the following youtube video: https://www.youtube.com/watch?v=WptwVzK7cK0&t=255s. Materials: FDS8958A …By: kri2190522 Continue Reading » Instructables: exploring – featured
Hi. Today I am going to show you How To make AC detector.Speaking about AC or alternating currents, it is far more dangerous than DC. It can easily kill you if the voltage is 220v or 110v city power.Before touching any live wire always make sure no high voltage is available there.So, how you can(…)
For a couple years, I helped the Children’s Museum of Bozeman develop curriculum for their STEAMlab. I was always looking for fun ways to engage kids with electronics and coding. Minecraft is an easy way to get kids in the door and there are tons of resources for using it in fun and educational ways…By:(…)
As is tradition, finished product image first.Inspired from masteruan’s similar build, which I will link below, I set off to build my own micro sized Electro-Magnetic Field Detector. The goals were to make this as small as possible while retaining enough stability that it would not break in someone’…By: bcb10 Continue Reading » Instructables: exploring(…)
Building a "semi-directional" radiation and cosmic-ray detector is not an easy feat. I aimed to design, construct, and test a portable and versatile Silicon photo-diode Radiation Detector suitable for the 5keV-10MeV detection range to accurately quantify low energy gamma-rays emanating from radioact…By: wavelet_spaghetti Continue Reading » Instructables: exploring – featured
NO ONE enjoys water/liquid of any kind leaking into places that it just doesn’t belong. The worst part of that scenario is that it tends to happen where you currently ‘happen not to be’…your basement, a utility closet, maybe even your attic or garage. Setting up a WiFi connected sensor in a potent…By: johnnyfrx Continue(…)