Project Description I need to be able to control turning on and off an RGB LED utilizing the Raspberry Pi. I also should be able to turn it on and off using an Android device. Design The design is made up to utilize three different components: Raspberry Pi / LED Hardware, Web Service, and Android […]
Controlling a RGB LED attached to a Raspberry Pi through Android Read More »
This instructable will attempt to explain, in simple terms, what a shift register is, and how you can use it with the Raspberry Pi to expand the GPIO port by running eight outputs with just four GPIO ports. To start with, what is a shift register? Wikipedia has a technical definition of shift registers, but
Using a shift register with Raspberry Pi Read More »
About a month ago my dad bought a soldering iron and we both learnt to solder by making an LED cube controlled by an Arduino. It was a cool project to show my friends and really easy to build so I have decided to make one for the Raspberry Pi and an Adafruit Cobbler because
Raspberry Pi 3×3 LED Cube Read More »
During the daily device driver development routine, we often need to understand the behavior of the GPIO pins to understand if there is I2C traffic or if our driver is handling the coming interrupts and so on. Sometimes is not enough to mount the debugfs interfaces and read out the values or cat/grep the /proc/interrupts
Debug GPIO with LED Read More »
The following example demonstrates the simple control of a GPIO pin on the Raspberry Pi. Source Code The source code for this example is included in the github repository: https://github.com/Pi4J/pi4j/tree/master/pi4j-example/src/main/java/ControlGpioExample.java /* * #%L * ********************************************************************** * ORGANIZATION : Pi4J * PROJECT : Pi4J :: Java Examples * FILENAME : ControlGpioExample.java * * This file is
Simple GPIO Control using Pi4J Read More »
Itead Studio made an SDK for linux system of Allwinner A10/20 chip before, which provided users with the underlying hardware driver interface for quick development of upper software, thus those who are not familiar with hardware can easily make a variety of creative applications combined with hardware and software. Now, Itead SDK has been ported
Use Itead SDK to Drive a 1602 LED Read More »
Scope: To use the Raspberry Pi’s GPIO Pins to turn an LED on and off, and to introduce the basic GPIO functionality of the pi. BOM: – 1 raspberry pi (I’m using rev B) with Raspbian OS installed – 1 LED – 1 1kohm current limiting resistor – Breadboard – Hookup wire – Example program
Using the Raspberry Pi’s GPIO Pins to Drive an LED Read More »
This project involves using a Raspberry Pi to drive 8 AC outlets which are connected to Christmas Tree light sets. The AC lights are simple one color strands of lights, but to give a more dynamic range to the light show there is also a 25 programmable RGB LED star. One of the benefits of
Raspberry Pi Christmas Tree Light Show Read More »
The Raspberry Pi Model B+ is a credit card sized computer with a Micro SD Card as a hard drive and 512MB of RAM. You install a Linux based software onto the SD Card and insert it to the bottom of the Pi. There are GPIO ports on the right hand side of the Pi
Raspberry Pi – Model B+ Setup Read More »
With my new toy Raspberry pi I’ve done several testing projects from instructables, adafruit etc. But after a while it became boring and I’ve started looking for something actually useful for me. My previous playground was my new phone several weeks ago which came with new feature NFC reading. Thought and thought together gave me
Attendance system using Raspberry Pi and NFC Tag reader Read More »
