Pulse Width Modulation or PWM is a method of Digital to Analog Conversion. It helps in delivering analog average voltage using digital pulses of variable pulse width. By controlling the on time and off time, we can generate an analog average voltage using the digital pulses. PWM has a wide range of application. It is […]
The Arduino Guitar Pedal is a digital multi-effect pedal based upon the Lo-Fi Arduino Guitar Pedal originally posted by Kyle McDonald. I made a few modifications to his original design. The most noticeable changes are the built-in preamp, and the active mixer stage which lets you combine the clean signal with the effects signal. I
On his blog, Stephen Wolfram, worldwide known as the creator of Mathematica (a widespread computational software) and Wolfram Alpha (a knowledge engine), describes his experience at last NY Maker Faire, where he was supposed to give a public talk. One of his sons, Christopher (13 years old) suggested him a very cool way to improve
Send a Foosball down a ramp and try to score on the goalie! But scoring is not so easy – the goalie moves left and right to block your shot! This project was made for a class called “Thinks that Think” at CU Boulder for the Spring 2012 semester Step 1: Ramp Materials: Aluminum tubing, Basswood, Wooden
I needed a couple of AA batteries and found the display at the supermarket where they were all arrayed. Normally when I’m shopping in the supermarket, I tend to look at the price/kg or price/l when comparing similar products. In the case of the batteries, there was no such indicator. Fine, I thought, I’ll work
This was a 6 week project created for the Spring 2012 Things That Think course at the University of Colorado at Boulder. Our project is an autonomous Sunflower. As in nature, the highest priority for our flower is sunlight, necessary for photosynthesis. Our Arduino controlled sunflower is constructed using 3D printing and laser cutting technologies.
When I first became aware of Arduino, a theremin seemed like a natural project: sensor + actuator. It turned out to be quite affordable and fun to make. It is a naive design, using just one photocell and some hacked headphones. After some experimentation, I decided that a self-calibrating function was essential if I wanted
Charlieplexing is an ingenius method for controlling many LEDs without using many microcontroller pins. You can turn on or off one LED at a time. To light more than one LED at a time, you can scan the LEDs by turning a sequence of them on and off really fast. The number of LEDs you
If you can’t explore the Moon or Mars … you can always explore your neighborhood! The main goal of this project is to alter a remote controlled vehicle and control it via Internet Telerobotics using the Mobile Telephone Network (WWAN – Wireless Wide Area Network) 3.5G or 4G (Long Term Evolution) and as an alternative
Mobile Earth Rover One – 3.5G Exploration using arduino Continue Reading
Creating a robotics platform from scratch takes allot of work and a few dollars. Buying a ready built one is easy but costs allot of money (at least for me). So instead I decided to piggy back off of the companies who make remote control cars. This is a great because it comes ready made
Light Seeking R.C Car Hack (with Arduino) using arduino Continue Reading
