Software PWM for controlling LEDs
LED’s brightness can be controlled with Pulse Width Modulation or PWM. Arduino only have so many PWM ports. Did you ever wonder how to control
Creating A Simple Relay Board Using Eagle
Here we just do a really simple relay board with two terminal blocks and an omron relay. Below you will see the schematic. I chose
LDR light sensor tutorial
Recently I received a question from a good friend of mine. He wanted to automate blinds on his office window and he wondered how he
Attendance Logger
I made this project long time ago. It was build as proof of concept while working for local tech company. Since then I have used
Virtual Color Mixer
This example demonstrates how to send multiple values from the Arduino board to the computer. The readings from three potentiometers are used to set the
Switch-case example, showing how to take different actions based on the characters received in the serial port
An if statement allows you to choose between two discrete options, TRUE or FALSE. When there are more than two options, you can use multiple
How to use a while loop to calibrate a sensor while a button is being read.
Sometimes you want everything in the program to stop while a given condition is true. You can do this using a [while loop](http://www.arduino.cc/en/Reference/While).
Building A 16×32 NeoPixel Display
Earlier this year while attending a FabNow Conferance in Ft. Worth I came across a few exibits with Neo Pixel Rings. I was fascinated with
Visualizing Music With FFT
The following videos are displaying patterns generated by a Processing program doing real-time FFT (Fast Fourier transform). Basically it is visualizing music in the frequency
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