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Beyond the DMM: Components and Circuits for Measuring Current and Voltage

Beyond the DMM: Components and Circuits for Measuring Current and Voltage

Learn about devices and techniques used for in-circuit monitoring of currents and voltages.


Feel the Rainbow: Sensing Color with an Arduino

Feel the Rainbow: Sensing Color with an Arduino

Since different colors reflect different levels of light, you can use a photoresistor or a phototransistor to sense different colors.


Projects Jun 26, 2015 by Tim Youngblood
Reading Sensors with an Arduino

Reading Sensors with an Arduino

The ease with which an Arduino can obtain sensor values is one of the features that makes it so useful.


Projects Jun 18, 2015 by Tim Youngblood
Remote Viewing: Communicating with an Arduino via Infrared Light

Remote Viewing: Communicating with an Arduino via Infrared Light

An infrared (IR) light sensor allows the use of an Arduino to receive and decode signals from a TV remote control.


Projects Jun 14, 2015 by Tim Youngblood
Create a Motion-Sensing Alarm with an Arduino and IR Sensors

Create a Motion-Sensing Alarm with an Arduino and IR Sensors

Infrared (IR) sensors are normally used to measure distances, but they can also be used to detect objects. By connecting a couple of IR sensors to an Arduino, you can make an intruder alarm.


Projects Jun 02, 2015 by Tim Youngblood
An Arduino-Controlled Light Sensor

An Arduino-Controlled Light Sensor

Monitoring the output of a light-dependent resistor, or photoresistor, allows the Arduino to know how light or dark it is. When the light falls below a certain level, the Arduino turns on a couple of LEDs.


Projects Jun 01, 2015 by Tim Youngblood