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Arduino Tutorials

4 Posts authored by: organtin
In certain cases you may need to use motors for different purposes. Depending on the experiment or the device you are building, the type of motor to use can be different. In this series of posts I will show you how to use those motors with Arduino.   Servo Motors Servo motors are motors for which you can control accurately enough the speed and the angle of rotation. They can be used to precisely move parts in your device. For examples, in physics experiment you can use a servo motor to ho ...
organtin

The RC circuit

Posted by organtin Mar 4, 2016
This time I am going to share with you an amazingly simple experience that is made possible using just an Arduino UNO board, a resistor and a capacitor. The RC circuit is a classic circuit in physics teaching and is composed by just a resistor R and a capacitor C in series. For details you can look at the Charging a Capacitor page of the HyperPhysics pages. Pupils study the charging and discharging of the capacitor when the circuit is connected to a battery. A rather simple mathematics gives the ...
A recent post appeared on the element14 community blog on the difference between different kind of motors led me to write this post. I am going to describe how to control a DC motor using Arduino UNO boards with a motor shield. There is a variety of methods to use an Arduino board to run a motor: they differ in complexity and cost. Using a motor shield makes running a motor relatively easy, even if it may be a bit expensive. However, the motor shield can drive other kind of motors and soon or la ...
My previous post was devoted to the illustration of a digital magnetoresistive sensor. A digital sensor provides just two states: on and off. Such sensors, then, can only tell you if there is a strong enough magnetic field close to the sensor or not.   In this post I'm going to illustrate the usage of a digital compass, namely a device from Digilent called PmodCMPS, to measure the intensity of a magnetic field. The device uses the HMC5883L digital compass IC from Honeywell to measure the t ...