This simple device sits on your desk at work, ready to give you fist bumps throughout the day as you need them. A 3D printed “fist” is moved by a servo attached to a rack and pinion mechanism. An ultrasonic range finder detects when you place your hand near it, and an Arduino Uno controls […]
Desktop Fist Bumper using arudino Continue Reading
Hello everyone, and welcome to my Instructable! This instructable will show you how I made the first ever DIY Arduino controlled “LED Kaleidoscope”! What is an LED kaleidoscope? Well, our traditional kaleidoscopes used 3 mirrors joined as a triangle with stuff like sequins and stolen cake decorations at one end, to create an awesome pattern
Kaleiduino: A Battery Powered Arduino LED Kaleidoscope Continue Reading
This project is an update of my original Peak Power Tracker Battery Charger Project. It is designed to control a 12V solar panel charging a 12V lead acid battery. The updated version of this project uses the Arduino Duemilanove development board (from www.sparkfun.com) as the basis for the project. Then I used the Arduino Protoshield
Arduino Peak Power Tracker Solar Charger Continue Reading
I bought a solar powered garden light. The solar panel charges the batteries and when it gets dark the lights (3x LEDs) turn on until it either gets lights again or the batteries run out. It has a small amount of intelligence (turns on when dark off when light) but not enough! Time for some
Intelligent Solar Garden Light using an Arduino- Part 1 Continue Reading
It’s been a while since I’ve published my last Instructables. I’m back, and I’m 3D-printed-powered! Enjoy this mini retro arcade machine. It’s literally my first complete end-to-end 3D-printed project: I made the design, printed it, assembled the electronics, programmed it, and now to the tutorial 🙂 This guide will be updated soon with instructions to
Complete Arduino-based 3D-printed Battery-powered Mini Retro Arcade Machine Continue Reading
The following design is for a Solar battery charger ran by an Arduino Nano. It can handle a standard lead acid 12V battery, like for a scooter or a car. Furthermore the design has been tested and runs with 90% efficiency under 70ᵒC (158ᵒF). It can take up to 20V on the input site of
Arduino powered Solar Battery Charger Continue Reading
Imagine the ideal beach trip. The sun is shining, the skies are blue, the water is warm, and the humidity is low. You and your friends have everything you need to soak up the sun, sand and surf: a cooler filled with drinks and snacks, sunblock, flip flops, the coolest new swimwear, and the newest
Beach Buddy: 3-in-1 Solar Phone Charger, Boombox, and Sunburn Timer Calculator Continue Reading
Here’s a six word tragedy: My arduino needs four AA batteries. Really? Isn’t this 2012? Where’s my jetpack?!! Here’s a way to the future — a way to make a solar panel, from scratch, that can power any arduino off of sunlight or even light in your house. Sort of a peel-and-stick power source for
Solar powered arduino on the back of a playing card Continue Reading
Add a remote buzzer to Smoke Alarms that are too far away be heard. Also add an optional Microcontroller interface e.g. Arduino. This document describes how to: Modify an escape-light type smoke alarm to sound a remote buzzer Create the buzzer module Create a microcontroller alarm interface including PCB layout Use an Arduino code example
Remote Smoke Alarm Buzzer & Microcontroller Interface Continue Reading
When it comes to building the battery packs, Li-ion cells are one of the best choices without the doubt. But if you get them from old laptop batteries then you might want to do a capacity test before building the battery pack. So today I will show you how to make a Li-ion capacity tester
DIY Li-ion Capacity Tester ! Continue Reading
