Category Archives: Games

Story Our skin is amazing! It provides a medium for us to experience the sense of touch. It keeps infections out and keeps innards in but I bet you didn’t know that our skin changes conductivity depending on many different things one being our mood! It is called Electrodermal activity (EDA) and there’s a really interesting Wikipedia page you can read here. The basics are that our skin changes its conductivity depending on how we feel. So tody we are going to make a Lie Detector using Arduino. This lie Detector will detect if the person on whom we are testing this is telling a lie or not. We start by connect our Arduino to the subject. Then connect the Arduino to a computer with the graphing software (I’ll go over this in detail later). Lets start by asking the subject some easy questions. We know they will answer truthfully…

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Introduction I am Maqueen Hello, my name is Maqueen, is a graphical programming robot for STEM education, which inherits playability and simple operation of micro:bit. The Mini-body, interesting features and plug-and-play allow children to quickly learn graphic programming in entertaining, nurturing children’s interest in science and logical thinking. What are the features of Maqueen? Support for Makecode, will support Scratch and python later. Small size, flexible movement. All-metal miniature gear motor, good quality, strong driving force. Line patrol, ambient light, LED lights, ultrasonic interface, buzzer, I2C interface, mechanical expansion screw hole, etc. … full-featured, highly expandable. Exclusive customized POM bearing wheel, flexible and reliable, strong obstacle crossing ability. Easy to install, easy to use. Function Diagram Specification Supply Voltage: 3.5V~5V DC ( Three AAA batteries or 3.7V lithium battery ) Infrared Grayscale Sensor(High-low level) x 2 Buzzer x 1 Infrared Receiver (NEC decoder) x 1 LED Lights (High-low level control)…

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DIY Cheap & Portable Power Supply Version 1.0 There are a lots of power supplies in market but those are too expensive for a Arduino Beginner or a Hobbyist. So I decided to make a Good Looking and Cheap power supply out of cheap modules. the power Supply must be handy as well as Powerful. So I started with making a voltmeter using 7107 IC (4- 7 Segment display Compatible). I created a circuit Diagram using EasEDA.com and created a Schematics and Then created a PCB design for the same and ordered my PCBs from jlcpcb.com because they provide best quality PCBs in the market. All the Schematics and PCB Design can be downloaded from www.robocircuits.com link to files – http://www.robocircuits.com/digital-voltmeter-without-arduino/ Then for making the Power Supply I printed a 3D Enclosure for the PS and get it printed by a local 3D printer. Then I grab some components 1. Voltmeter – http://www.robocircuits.com/digital-voltmeter-without-arduino/ 2. Buck Conveter – https://amzn.to/2RfWbcG…

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