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Following pictures show different steps of making an LED bracelet with small LEDs and pieces of copper wire. Hover your mouse on top of each of the pictures to see details about that step and click to have a closer look.
READ MORE »Posts in category Projects
How to make a LED bracelet with small 3mm Orange flat top LEDs and thin wires
Following pictures show different steps of making an LED bracelet with small 3mm orange LEDs and pieces of thin wire. Hover your mouse on top of each of the pictures to see details about that step and click to have a closer look.
READ MORE »12V Lamp on Arduino with a reed relay
Intro Arduino has a limited current sinking/sourcing capability (less than 40 mili Amps) on its pins. Whenever you intend to switch a device which needs high current or high voltage (like a lamp or a motor) an intermediate circuit is needed. In the simplest case this intermediate circuit is a relay. Relays Relay acts as a […]
READ MORE »Arduino driving a motor with Pololu MC33887 Motor Driver
Introduction There are different approaches to driving a motor when it comes to driving a motor with Arduino. If a simple relay is used to drive a motor it can only turn the motor on and off. In case a single transistor like TIP120 (BJT) or IRF510 (MOSFE ) is used, it is possible to control […]
READ MORE »“Simple note” an Arduino musical instrument
Introduction Simple note works like a musical keyboard. It has 8 buttons which you can use to plays notes (C D E F G A B C) similar to a piano. Pitch and duration of the notes (Octaves) can be adjusted by a potentiometers or hard-coded in the code. The video below shows the circuit […]
READ MORE »‘Micro sequencer’ an Arduino musical instrument
Introduction Micro sequencer plays a sequence of 4 randomly chosen tones on Arduino. Tempo (playback speed) and tone length (more like a tremolo) can be controlled via two analog inputs. Four buttons control the octave of the tones where another button is used to generate a new random set of tone sequence. The sequence can be […]
READ MORE »Charotor flying outside
Here is a short update : [youtube=http://www.youtube.com/watch?v=Elh7mwUq3f0&feature=player_embedded]
READ MORE »Model radio transmitters and HobbyKing 6 Channel transmitter guide
I believe making a PC based RX/TX is pretty inefficient as you would get used to the controls on a real TX device much sooner than a PC keyboard, so take my advice and buy one. There are two common modes for model airplane/helicopter radio transmitters. The main difference is that the mode 2 transmitters have […]
READ MORE »Building a Quadrotor – Master thesis
Here you can find the abstract and first pages of my thesis. It is about a Quadrotor which I earlier started to post about. This robot got me the highest score for my thesis and the robot was sold to the Qazvin Azad University only covering the expenses and nothing more and University demands to […]
READ MORE »Building a Quadrotor – Frame design
The frame of this quad rotor is made out of Carbon fiber. First I thought of using two of them in parallel to give it more strength, but then as I saw other project and based on the experiments I did I found it safe to start with only one and then increase to two just […]
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