Controlling Raspberry Pi GPIO using Android App

Raspberry Pi is very popular for IoT projects because of its seamless ability of wireless communication over internet. Raspberry Pi 3 has inbuilt Wi-Fi and Bluetooth, and Bluetooth is a very popular wireless communication Protocol. So today we are going to Control Raspberry Pi GPIO Pin through an Android app using Bluetooth.

Here we are using Raspberry 2 Pi Model B which don’t have inbuilt Bluetooth, so we are using a simple USB Bluetooth dongle. Apart from that we only need a resistor (220R) and a LED to demonstrate the GPIO controlling. Here we are using RFCOMM Bluetooth protocol for wireless communication.

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SQLite Database on a Raspberry Pi

This article will introduce you to SQLite, which is an in-process light weight library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. SQLite is the most widely deployed SQL database engine in the world and its source code is in the public domain.

What is SQLite?

SQLite is an embedded SQL database engine. Unlike most other SQL databases, SQLite does not have a separate server process. SQLite reads and writes directly to ordinary disk files. A complete SQL database with multiple tables, indices, triggers, and views, is contained in a single disk file.Read More

Run a Web Browser in Kiosk Mode

This guide provides a very lightweight setup for a Raspberry Pi in kiosk mode: Instead of stripping down a full desktop environment like PIXEL or LXDE, we start without any GUI at all and install only the bare minimum needed to display a web browser in full screen.

Start With a Fresh Install of Raspian Lite:

Download and install Raspbian Lite. In contrast to Raspian Desktop, Raspian Lite has no desktop environment preinstalled and is generally much lighter and smaller in size.Read More

Find the IP Address of Raspberry Pi using a Python Script

The main problem while working with Raspberry Pi is to know the IP address of the Raspberry Pi, which will be needed to login into it using some SSH or file transfer client. So today we will share some Python scripts to find the local IP address of your Raspberry Pi on the network and display it on the 16×2 LCD Screen. We will also add the script in the Crontab so that it can be run on every 10 minutes and we will have the updated IP address every time.Read More

Web Server using Flask to Control GPIOs

n this project you’ll create a standalone web server with a Raspberry Pi that can toggle two LEDs. You can replace those LEDs with any output (like a relay or a transistor).

In order to create the web server you will be using a Python microframework called Flask.Read More

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