Latest Technical Articles

The LM35 is an ideal temperature sensor for measuring ambient temperature. It provides a linear output proportional to…

The LM35 is an ideal temperature sensor for measuring ambient temperature. It provides a linear output proportional to the temperature, with 0 V corresponding to 0 degrees C and an output voltage change of 10 mV for each degree C change. LM35s are easier to use than thermistors and thermocouples because they are so linear and require no signal conditioning.

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

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

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

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

This article describes what voltage and current dividers are and how they can be used.

This article describes what voltage and current dividers are and how they can be used.

These online sources not only help you find part data quickly, but can also help you determine availability and manage…

These online sources not only help you find part data quickly, but can also help you determine availability and manage bills of materials.

Qi (pronounced as "chee") charging is an optimized inductive charging concept also known as “wireless charging,”…

Qi (pronounced as "chee") charging is an optimized inductive charging concept also known as “wireless charging,” allowing you to charge your devices wirelessly. Compatible devices’ batteries are charged by using induction transfer without requiring separate chargers, cables or adapters... Simply place your compatible device on top of the wireless pad and watch your device charge. Finally--an end to cords!

In some Arduino applications, it is advantageous to be able to store and retrieve information locally. You can do this…

In some Arduino applications, it is advantageous to be able to store and retrieve information locally. You can do this with a Secure Digital, or SD, card. An SD card is a non-volatile memory card used extensively in portable devices, such as mobile phones, digital cameras, GPS navigation devices, handheld consoles, and tablet computers. Another type of SD Card is the Micro SD card. Measuring only 15 mm x 11 mm x 1 mm, it is the smallest memory card available. It is about one-quarter the size of a normal-sized SD card, or about the size of a fingernail.

A short introduction to some of the more popular interfaces used to connect test instruments to computers.

A short introduction to some of the more popular interfaces used to connect test instruments to computers.

This article explains how to measure a resistance value, even if the resistor cannot be removed from its circuit.

This article explains how to measure a resistance value, even if the resistor cannot be removed from its circuit.

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

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

In this tutorial we are going to see how to use Arduino Joystick Shield. There are different versions but we'll be using…

In this tutorial we are going to see how to use Arduino Joystick Shield. There are different versions but we'll be using v2.4, which has some interesting features and some extra buttons which can be used in your application in different ways.

The effect of noise and Power Supply Rejection Ratio (PSRR) in Low-dropout (LDO) regulators.

The effect of noise and Power Supply Rejection Ratio (PSRR) in Low-dropout (LDO) regulators.

Use MATLAB to write a program to control a servo motor connected to an Arduino.

Use MATLAB to write a program to control a servo motor connected to an Arduino.

Keypads allow users to input data while a program is running. This tutorial shows you how to connect a twelve-button…

Keypads allow users to input data while a program is running. This tutorial shows you how to connect a twelve-button keypad to an Arduino and how to use the library Keypad.h.

How to connect your Arduino board to MATLAB and actually control and get information on the Arduino.

How to connect your Arduino board to MATLAB and actually control and get information on the Arduino.

Understanding the relationship between resolution and accuracy will help you determine how small a voltage, current, or…

Understanding the relationship between resolution and accuracy will help you determine how small a voltage, current, or resistance—or how small a change in those values—that you can actually measure with your digital multimeter.

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

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

Learn about various power electronic devices which act as solid-state switches in the circuits, meaning they act as a…

Learn about various power electronic devices which act as solid-state switches in the circuits, meaning they act as a switch without any mechanical movement.

This project will help you get started with the Arduino, including a description of the different types of Arduinos, how…

This project will help you get started with the Arduino, including a description of the different types of Arduinos, how to download the Arduino software development environment, and describe the different shields that are available for the Arduino along with the accessories you will need to develop Arduino projects.