In this project, we will go over how to build a light detector circuit using an arduino. A light detector circuit is a circuit which can detect the presence or absence of light, depending on how we write our code to respond to the varying light levels. For example, if there is a great deal […]
How to Build a Light Detector Circuit Using an Arduino Continue Reading
In this project, we will build an infrared proximity switch circuit using an arduino. This is a circuit in which a switch activates when the infrared sensor detects an object in its proximity. The infrared proximity switch sensor is a reflection-type photoelectric snesor which sends and receives infrared beams. Infrared proximity switches work by sending
How to Build an Infrared Proximity Switch Circuit Using an Arduino Continue Reading
In this article, we will go over how to connect a force sensing resistor, or force sensitive resistor, (FSR) to a circuit to build many different types of useful circuits with them. Force sensing resistors are variable resistors which change resistance according to the pressure or force applied to them. Under no force, the resistance
How to Build a Simple Force Sensing Resistor (FSR) Circuit Continue Reading
In this project, we will go over how to connect a microphone to an arduino so that the arduino can detect whether there is sound in the environment or not. This circuit is only capable of detecting whether there is sound in the environment or not. It won’t be able to record the words that
Have you ever felt like the mail sound on your Mac just wasn’t enough? Simple sounds and alerts just don’t cut it for you? You want something more apparent and rewarding? If so, this is the Instructable you’ve been looking for. In this Instructable, I’ll show you how to hook up your Arduino to your
Create an Applescript/Arduino Alert flag. using arduino Continue Reading
In this project, we will demonstrate how to build temperature sensor circuit using a LM35 sensor. As a temperature sensor, the circuit will read the temperature of the surrounding environment and relay thi temperature to us back in degrees celsius. The IC we will use to measure the temperature is the LM35 IC. We will
How to Build a LM35 Temperature Sensor Circuit Continue Reading
Including voltage measurement via AC-AC voltage adapter and current measurement via a CT sensor. This guide details how to build a simple electricity energy monitor on that can be used to measure how much electrical energy you use in your home. It measures voltage with an AC to AC power adapter and current with a
Soldering SMD components isn’t as hard as you might think. In fact it’s easy. If you follow this instructables you’ll soon see just what great results you can obtain at home using just a hotplate. It’s not just being able to make small circuit boards that makes SMT soldering so good it’s also a nicer
Soldering an SMT MOSFET Driver with a hotplate Continue Reading
Today we’ll expand Arduino’s digital resources thanks to an I2C bus equipped shield and we’ll allow the management of the board via a bluetooth connection RN-42 through an Android systems. All Arduino boards feature a number of digital I/Os. For the simplest projects, such resources are usually more than sufficient, but in those where they
An I²C Bus powered Arduino IO Expander Board controlled via Bluetooth and Android Continue Reading
I’ve reached the point where I need to think how I’m going to control the motor & linear actuator for my solar tracker. Things to consider – Must be able to go forwards and backwards – so that makes 4 channels, 2 for each motor. Must be able to provide enough power to drive the
