Electronics on Vignesh Ragupathy

Raspberry pi – blinking led in morse

Sat, 07 Oct 2017 11:54:00 +0000

In my previous post i described how i created high available replicated storage with raspberrypi
In this post i will guide you how to interface raspberry pi to blink a led in morse code for the user input.The same signal fed into the LED can be send to a radio transmitter and we can transmit it in radio frequency . Recently i starter learning morse code and i am going to apply a license for Amateur radio operator.

Glusterfs ha storage with Raspberrypi

Sun, 01 Oct 2017 10:30:00 +0000

Overview

This post is about how to create a high available redundant storage (Glusterfs replicated volume) from Raspberrypi and a centos server. This is just for fun project, which i am experimenting with my new raspberrypi 2 device. This is not a perfect setup, like i am using a 2 nodes replicated volume without quorom,created brick from ext3 filesystem and on root directory etc.Do not use this setup in production 🙂