Why Wii Nunchuck Arduino? You can create and build endless electronics design and project with the powerful Arduino, for example a robot. By attaching Wii Nunchuck Arduino, you create the opportunity to control Arduino using the way we most familiar with, the way we play games! Not to mention, Wii Nunchuck is cheap (~5 US […]
Wii Nunchuck Arduino Tutorial Continue Reading
These two chips provide an easy way to control either an array of 64 Led’s or up to eight digits made of 7-segment displays with a minimum of electronic components. Besides the chip itself you will need only a single resistor and one or two capacitors. Data is send to the chip using a SPI-compatible
A arduino library for the MAX7221 and MAX7219 Continue Reading
For my project, the Arduino output is not enough so digging on the net and asking to a friend some help, I managed to build an amplifier to feed my 3 computer fans. This circuit can be used as an amplifier to switch on and off a DC motor and to regulate its spinning speed
An amplifier for Arduino Continue Reading
Oscar Gonzalez gives us a simple tutorial for speed controlling a PC FAN and reading a LM35 temperature sensor with an Arduino microcontroller. He covers the use of an optocoupler, PWM (Pulse Width Modulation) and reading analog voltages with the Arduino. He even has a video showing the fan speed control in action. This article
Arduino temperature controlled PC Fan Continue Reading
Part 1. Analog Front-End. Opto-Isolator. Looking at the Power Quality Analyzer display, I was wandering, if there is any error in the measurement results, introduced by transformer. Overall THD picture doesn’t change much, suspiciously drawing same chart in the morning and in the evening, when electrical grid load significantly differs. Obviously, to estimate effect of
Power (Energy) Meter using Arduino Continue Reading
Biasing AC input using resistor divider and scaling up / down if necessary; Sampling fast and accurately using direct access to Control Registers of ADC and Timer1; Subtract whatever was added at step #1 from result of Analog / Digital conversion and Square; Average / accumulate, filtering following VU specification; Sqrt – take square root,
Audio VU Meter using Arduino Continue Reading
ow my Arduino can precisely measure audio input (VU meter), and obviously, next thing that comes to mind right after measurements, is regulation or control. There are many different ways how to electronically adjust audio volume or level of AC signal. I’ll name a few: Specifically design IC, Digital potentiometers. Mechanical potentiometers, driven by servo
True Analog Audio Volume Control using Arduino Continue Reading
ARDUINO MEGA 2560 REV3 The MEGA 2560 is designed for more complex projects. With 54 digital I/O pins, 16 analog inputs and a larger space for your sketch it is the recommended board for 3D printers and robotics projects. This gives your projects plenty of room and opportunities. Microcontroller ATmega2560 Operating Voltage 5V Input Voltage
MEGAshield KIT for Arduino MEGA 2560 R3 and Arduino DUE Continue Reading
In this Arduino tutorial I will demonstrate how to correctly connect the LM35 temperature sensor to the Arduino. I will also show you how to write the code necessary to obtain the temperature from the sensor. I will also elaborate on the LM35 sensor and demonstrate a simple entertainment cooler that I have designed to
Arduino Tutorial (LM35 Temp Sensor) Continue Reading
Arduino Tutorial #1: Uno Hardware In this video I look at the hardware for the Arduino and how it compares to that other microcontroller I’ve worked with, the Netduino. Arduino Tutorial #2: Getting Started n our second Arduino tutorial, we take a look at what is essentially the “hello world” of the microcontroller world. We
Arduino Video Tutorials Continue Reading
