Arduino Powered Four Letter Word Generator

Build an Arduino-powered version of the "Four Letter Word Generator" (FLW). This version generates "words" on the fly - it does not use a list. The "original" version from the 1970's used B7971 nixie alphanumeric tubes. These tubes are getting hard to find and they're certainly expensive. They also require interfacing with high voltage and an understanding of multiplexing. This version uses a slightly more ...

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antiAFK – Sending random keyboard commands

Hey everyone, back with another project. The antiAFK is something I originally started working on almost a year ago, but its only been since 2014 started that I've been making real progress on all my projects. Plus, I just finished my MSc the other day so now I've got all the time to work on my OSHW!   The antiAFK is essentially a stripped down Arduino Leonardo with the intention of sending occasional ...

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HSM-20G Interface with Arduino Uno

The HSM-20G is an analog humidity and temperature sensor that outputs analog voltage respects to relative humidity and temperature. However from this sensor relative humidity is found along with temperature. Relative humidity is the percentage of moistures of airs for a particular temperature [1]. Feature: 1. Storage range: -20°C to 70°C 2. Operating range: 0°C to 50°C Application: HSM-20g is considered as ...

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BJT In Reverse Avalanche Mode

Transistors operating in their avalanche regions are often used to generate fast rise pulses (seeavalanche pulse generator using 2N3904). Many transistors can also avalanche when the connections to collector and emitter are reversed. When operating in reverse avalanche region, these transistors are sometimes referred to as negistors. Because the asymmetry and doping differences between the base-emitter and ...

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Real-time room temperature on your Website using Arduino

This is how to push high resolution real-time data from Arduino-based temperature sensor to your web page without any server-side coding. Arduino is a great device for collecting, storing and transferring data from various sensors but there are times you need to make your data accessible from any place over the internet, like I did for room temperature in my study. That’s when this solution may come handy. ...

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How To Make a PC Control Robot

Do you ever tried to control your robot using your PC or laptop? Controlling a robot using PC or laptop is often being a fun for the student or hobbyist. Thus during this article you will be tend to learn how to control your robot using your PC or laptop. Here it is assumed that you know How To Send Serial Data From Arduino To Laptop or PC and How To Receive and Send Serial Data Using Arduino Board. Thus le ...

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Arduino Controlled Nerf Vulcan

Yes, this is exactly what the title says it is. This instructable will teach you how to control any Nerf Vulcan, with your Arduino. The provided tutorial will just shoot for 2.5 seconds, stop for 2.5 seconds, and so on. It is like a "hello world" program for controlling your Nerf Vulcan. It can easily be expanded to do whatever you want, you could use a proximity sensor to make security system, you could us ...

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How to Make a Cheap Battery for Storing Solar Power

A new kind of battery invented by Jay Whitacre, a professor of materials science at Carnegie Mellon University and founder of the startup Aquion Energy, could make renewable electricity more practical and economical around the world. Aquion is about to start full-scale production of the batteries at a new factory in Mount Pleasant, Pennsylvania. Whitacre says his batteries’ most promising near-term applicat ...

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PSoC 4 Pioneer Kit Community Project#042 – Hangman Game

Hello! It has been our Friday tradition for the past few weeks to end with a game. This week we have the Hangman game. In this game the user will be using two Pmod boards, an LCD and Button board to display outputs and generate inputs for the system. The user will be presented with a  word that has some letters filled. The user will need to guess letters to complete the word. The words you will be trying to ...

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Build a big crane game using Arduino

How to build a whole room crane game.  Based on the arcade style 'Crane Game' or 'Claw Machine'.  This is a continuation of a previus instructable titled CRANE GAME in which we built a 2-axis crane game in a door frame.  We have now added a third axis and wireless control.  And made it big. A few technical and functional improvements: Less wires - controllers and batteries move with the motors and are signa ...

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EasyPlug: The Sensor Shield for Arduinos

Get straight to the action. Connect sensors to your Arduino in literally 2 seconds. $35,000 Stretch Goal: On-board sensor tester If we hit this goal, we will include on-board LEDs that can be controlled from your Arduino board using your PWM/IO pins. This will let you quickly see how each sensor responds (ie. more you press a pressure sensor the brighter the light). Think of it as an incredibly easy way to ...

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Battery powered device hardware design tips

I'm working on a prototype product(Wifi motion sensor) that will be powered from a battery source, it has a mega328(arduino bootloader, with sleep mode on and wake on interrupt,and WDT in case it hangs up), a PIR motion sensor , and a CC3000 break out board. Power saving is done in software, but what type of battery should I use? I initially used 2AA with LT1302-5 boost converter, but I think it was not abl ...

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