If the switch is closed for half second and opened for next half second, then LED will be ON only in the first half second. In above figure, if the switch is closed continuously over a period of time, the LED will be ‘ON’ during this time continuously. We have previously talked about PWM many times in: Pulse width Modulation with ATmega32 , PWM with Arduino Uno, PWM with 555 timer IC and PWM with Arduino Due. We will generate PWM signal from Raspberry PI and demonstrate the PWM by varying the Brightness of a LED, connected to Pi. PWM is a method used for getting variable voltage out of constant power supply. PWM stands for ‘ Pulse Width Modulation’. In this Raspberry Pi PWM tutorial we will talk about getting PWM output with Raspberry Pi. We have discussed LED blinky and Button interface with Raspberry Pi in previous tutorials. Check these for Getting Started with Raspberry Pi and Raspberry Pi Configuration. By the end of tutorial series you will be able to do high profile projects by yourself.

In each tutorial we will discuss one of functions of PI. We will be covering all the basic functionalities of Raspberry Pi in these tutorials. With higher processor speed and 1 GB RAM, the PI can be used for many high profile projects like Image processing and Internet of Things.įor doing any of high profile projects, one need to understand the basic functions of PI. The PI is one of most trusted project development platforms out there now.

Raspberry Pi is an ARM architecture processor based board designed for electronic engineers and hobbyists.

Raspberri pi fritzing