arduino

Arduino textin

Arduino text’in

Arduino text‘in. Key Features: 24 relays controlled by 4 I/O lines! Cell phone text using your Arduino. This project hacks a cell phone to text using normally open relays. After investigating cellular modules on the internet I decided it looks not only rather pricy, but also like a possibility that even after I had it

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Arduino Analog Inputs

Arduino Analog Inputs

This week is all about analog inputs for the Arduino. I’ll show you how you can use a voltage divider circuit (see episode 3) and a variable resistor to make an analog sensor. [box type=”note” color=” #202020 ” bg=”#ffbb00 ” font=”verdana” fontsize=”14″ radius=”20 ” border=”#000″ float=”right” head=”Attributes”]Thanks to Jeremy , for this articles[/box] We’ll also

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Arduino – Control a DC motor with TIP120 potentiometer and multiple power supplies circuit

Arduino – Control a DC motor with TIP120, potentiometer and multiple power supplies

A quick circuit showing how to control the speed of a DC motor with a potentiometer with your Arduino board. Also shows how to use a TIP120 transistor to allow the Arduino control a larger power supply. Transistors are 3 pin devices, which via the 3rd pin (Base) allow it to control the current passing

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