Written by A quick update! Seems there are a lot of new things going on on the E-bike community: endless-sphere.com ! Adrian has done a friction drive (on tire drive, http://www.endless-sphere.com/forums/viewtopic.php?f=28&t=22187&p=322985#p322985) with nice documentation. It makes it kinda possible to have something running quickly! he also has the sketch for the design (attached to this mail, probably […]
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How to make a LED bracelet with small LEDs
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 »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 »How to make a LED bracelet with small 3mm Yellow flat top LEDs and thin brass tubes
Following pictures show different steps of making an LED bracelet with small 3mm yellow LEDs and pieces of brass tube. Hover your mouse on top of each of the pictures to see details about
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 »A line-follower robot at Valand!
Introduction: If you are interested to build a Line Follower robot with an Arduino here is how to do it. You will need two wheels, two continuous servos as the motor, infra red sensor array, An Arduino board, and some other components that are pictured below: Schematics Here is the schematics for the robot. It’s […]
READ MORE »Cheaply convert a normal bike to an Ebike
Hi, After working with the powerful and efficient BLDC motors now I am starting to think about using them as an engine for my bike. I live somewhere uphill where I have to pedal about 1 KM on a 15 Degree steep road to get back home. This is the sole reason behind me not […]
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