Tag Archives: LED

How To Disable The Red LED On The Pi Camera Module

Posted on May 18, 2013 by Matt

The Pi camera module includes a red LED in one corner of the PCB. This lights up when the camera is active. It’s really useful in giving a visual indication that the camera is doing something and most of the … Continue reading →

Posted in Camera Module | Tagged , | 7 Comments

Raspberry Pi Status LEDs Explained

Posted on February 10, 2013 by Matt

All Raspberry Pi boards have status LEDs positioned in one corner next to the 3.5mm audio jack and USB port(s). The Model B has five status LEDs whereas the Model A has two. The Model A has PCB labels for … Continue reading →

Posted in Hardware | Tagged , | 2 Comments

16×2 LCD Module Control With Backlight Switch

Posted on August 3, 2012 by Matt

Following on from my article about controlling a 16×2 LCD module with Python and a Raspberry Pi I decided to make a few enhancements. These included : Adding a 10Kohm variable resistor to adjust the contrast Adding a 5Kohm variable resistor … Continue reading →

Posted in Hardware, Python, Tutorials & Help | Tagged , , , , , | 5 Comments

Control LED Using GPIO Output Pin

Posted on June 10, 2012 by Matt

The circuit below shows to turn an LED on and off using a Raspberry Pi GPIO pin configured as an output. It uses the output pin to turn on a transistor which allows the LED to draw current from the 5V … Continue reading →

Posted in Hardware, Python, Tutorials & Help | Tagged , , , | 8 Comments

Simple Guide to the RPi GPIO Header and Pins

Posted on June 9, 2012 by Matt

This page aims to give a general introduction to the General Purpose Input Output pins on the Raspberry Pi (Model B). The GPIO pins are available on the PCB via a header and allow you to interface the Pi to … Continue reading →

Posted in Hardware, Python, Tutorials & Help | Tagged , , , , , | 5 Comments