Introducing the RainBoard: A simple RGB LED Rainbow fader using an Arduino Uno and a few simple components. Believe it or not, we will control 45-channels of RGB LEDs at 32 brightness levels using only 3 digital pins from the Arduino! How is this possible you ask? By using two magic concepts: Shift Registers, and
RGB LED Rainbow Fader using an Arduino Continue Reading
Connecting the LCD The first step is to wire up the LCD. The HD44780 has 16 pins: Pin 1 – Vss Pin 2 – Vdd Pin 3 – Vo Pin 4 – RS Pin 5 – R/W Pin 6 – E Pin 7 – DB0 Pin 8 – DB1 Pin 9 – DB2 Pin 10
Arduino LCD Metronome Continue Reading
This Instructable will show you just how easy it is to add extra inputs to your Arduino. You can use this technique to add hundreds of extra inputs to your Arduino with only two wires by using a fancy communication protocol called i2c (eye-squared-see). What I have used… PCF8575 SMD to DIP breakout board Teensy-Arduino (any Arduino
Using The PCF8575 i2c i/o Expander To Read Inputs With Arduino Continue Reading
If you need an Arduino to shut off from within your Sketch, this is the solution. We will explore wiring the Pololu Pushbutton Power Switch, programming the Arduino to shut off the power, and making the unit “power on” only. The Pololu Pushbutton Power Switch comes in two versions – the SV version geared towards
Power off from an Arduino Sketch using the Pololu Power Switch Continue Reading
What is a solar tracker? A solar tracker can increase the efficiency of a solar panel by up to 100%! It does this by always keeping the panel perpendicular to the incoming rays of sunlight. here’s an equation to prove this: P = AW sin θ P = power generated by the solar panel A
Arduino 2-axis servo solar tracker Continue Reading
Hello, in this instructable I’ll be showing you step by step how to build the TurtleDuino, an object avoidance robot, with an Arduino UNO microcrontroller on board. I designed the TurtleDuino using material from the hardware store (Home Depot) and all the electronics from sparkfun.com and jameco.com. Shopping List: Arduino UNO (Sparkfun.com) Ultrasonic Ping))) Sensor (jameco.com) 2
TurtleDuino Object Avoidance Robot using Arduino Continue Reading
This Instructable covers the assembly of a circuit capable of PWM-ing (pulse width modulating) a high-power RGB LED strip and programming an Arduino to cycle through a range of colors. In this context, “high power” is 9-12 volts. I will discuss how to mount a transistor to a heatsink and assemble the circuit. I will
RGB LED Strip Circuit with Arduino Continue Reading
The project This project follows on from the excellent work by ScotSEA and his Arduino reset program (see http://www.instructables.com/id/CatGenie-Resetting-a-SaniSolution-Cartridge/ ). I had never taken my Catgenie apart as Scott did, but had built a small contact board instead. I had previous updated Scott’s program to so that it output some debugging output to the computer
CatGenie: A smart, resettable SaniSolution cartridge Continue Reading
Aim: Switch relays from the ethernet or the internet, using your mobile, tablet or computer with a nice graphical user interface. Update V4.06 Please read the below steps to Step 2 if you are viewing this article for the first time. Please go to step 3 for the latest revision which is V4.06 Material: *
Ethernet Switching – with Arduino Continue Reading
I own two excellent AM transmitters – one is homemade with a single 6888 Tube and the other is a restored old KnightKit Broadcaster. Additionally, I have a high-quality solid state transmitter from SSTRAN that I use to broadcast music to my collection of repaired or refurbished antique AM radios. I desired a top-notch FM
An FM Stereo Broadcaster PLL using Arduino Continue Reading
Free Arduino projects, circuits, code and tutorials. Pick a board, pick a sensor, build something.
