The Grand Finale In a previous post on Building a Raspberry Pi Cluster, I wrote about how we built a cluster using several Raspberry Pis. This cluster was used for hosting the WSO2Con App. In this post we will take a look at the finishing touches & some interesting information from WSO2Con 2013. The project was […]
Building a Raspberry Pi Cluster – Part 2 Read More »
1. The circuit description This circuit is consist of the STC89C52 minimum main system and 32 colorful LED display components. It uses the STC89C52 Microcontrollers as the control chip and drives 32 I/0 to control the 32 F5 colorful LED.( We have finished the Microcontroller program for the DIY Kit) 2. Electrical parameters Working voltage: DC 5V PCB board
ICStation Heart-shaped Colourful Dazzle Light DIY Kit Read More »
Binary clocks show the time in an unconventional format. They display the hours, minutes and sometimes even seconds as numbers represented in the binary numeral system. Binary clocks and binary watches have grown quite popular today. More and more people work in IT and become familiar with the binary numbers, the native language of our
Raspberry Pi Binary LED Clock Read More »
Looking for a first project to try out on a Raspberry Pi, I though what better than a Spectrum Analyzer? (Sometimes this display is erroneously referred to as a graphic equalizer–that let’s you change the sound, not display it) I was able to get it doing 2048pt FFTs and decoding mp3s in real time, and
Raspberry Pi Spectrum Analyzer with RGB LED Strip and Python Read More »
This tutorial demonstrates how to attach a LED to the expansion connector on your Raspberry PI and to make it blink with a simple C++ program. First of all, in order to programmatically switch a LED on and off we need to connect it between a general-purpose input/output pin (GPIO) and the ground. Then we
Creating a “Blinking LED” project for Raspberry PI Read More »
One of the classic electronic analogy to “Hello World” is to make an LED blink. Raspberry Pi has 8 General Purpose Input/Output pins( 4,17,18,21,22,23,24,25) which can be configured as input/output and turned on/off via software.In this Instructable I will be using python to control the LED, as coding in python is very simple yet it’s
LED Blinking with Raspberry Pi Read More »
This is the first project regarding 8051 and of course one of the simplest, blinking LED using 8051. The microcontroller used here is AT89S51 In the circuit, push button switch S1, capacitor C3 and resistor R3 forms the reset circuitry. When S1 is pressed, voltage at the reset pin (pin9) goes high and this resets
Blinking LED using 8051 Read More »
We add to Raspberry Pi a TFT touch screen to display the system console, movies and favorite photos or control a relay board … at your fingertips, literally! To avoid using an HDMI monitor the cost well above that of Raspberry Pi, in previous articles we have always gone the way of connecting remotely to the
Touch Display for Raspberry Pi Read More »
The subject here is connecting the Raspberry Pi to a MM5451 LED display driver. This is written in Python to demonstrate bitwise programming and shift register operation. Using only two input pins (clock and data) for serial date input produces 35 open drain outputs. The 35 outputs are 15mA sink. The MM5451 comes in a
Connect-Program Raspberry Pi and a MM5451 LED Display Driver Read More »
Description Electronic Dice Kit Instructions Electronic dice kit is based on the NE555 oscillator circuit and fun circuit CD4017 counter display kit. Can simulate the dice, make fun of the game. One. Kit parameters: Supply voltage: 4.5-5V Dimensions: 74 * 35mm Two. Function play: When a power-up, 7 LED will randomly display a number of
ICStation Electronic Dice DIY Kit 7pcs 5mm Red LEDs Read More »
