Raspberry pi

In the previous tutorial, we learned how to use Raspberry Pi’s (RPi) serial hardware port for serial data communication over the universal asynchronous receiver/transmitter (UART) protocol. Most of the embedded devices have the UART port for exchanging console data. In fact, most of the sensor modules that are designed for peer communication with controllers/computers have the…

In the previous tutorial, we covered how to interface a SIM900A GSM-GPRS modem with Raspberry Pi, Arduino, and desktop computers. SIM900A can communicate data with the controlling device over the universal asynchronous receiver/transmitter (UART), I2C, or SPI protocol.  The modem is a piece of mobile equipment with an IMEI number that’s capable of all cellular…

In the previous tutorial, we covered the AT commands that are supported by a SIM900 GSM-GPRS modem. We’ve already discussed how to interface a SIM900A GSM-GPRS modem with Raspberry Pi, Arduino, as well as other microcontrollers and desktop computers. Now, it’s time to use this modem to make and receive calls, and send and receive…

In the previous tutorial, we learned how to interface a SIM900 GSM-GPRS modem with Raspberry Pi (RPi) and a desktop computer. We employed serial UART communication to “talk” with the SIM900 modem. By using bidirectional data communication with the modem via a standard UART interface, we were able to make/receive calls and send/receive SMS messages on RPi and…

In the previous tutorial, we covered how to interface a NEO-6M GPS module with Raspberry Pi (RPi). The module communicates with RPi over the universal asynchronous receiver/transmitter or UART protocol.  The UART is the most common point-to-point data communication protocol. But, it’s not the only serial communication protocol. In embedded electronics, I2C and SPI protocols are…

In the previous tutorial, we discussed the basics of the I2C protocol. In most of the embedded devices, either UART otherwise I2C is used for console messages. In this tutorial, we will discuss serial communication in Raspberry Pi using the I2C protocol. I2C in Raspberry Pi For serial communication over the I2C protocol, the Broadcom…

A peephole, spyhole, or peekhole is a small opening through the door that allows viewing from inside to outside. Such door holes allow seeing outside the door without opening it. Usually, these door holes have a fisheye lens to have a wider look of the outside. In this project, we have developed a digital version…

One of the main attractions of the Raspberry Pi platform is its camera module. At present, Raspberry Pi Foundation offers three camera modules: • Camera Module 2 • Camera Module 2 NoIR • Raspberry Pi High-Quality Camera The camera module 2 is a replacement for the original camera module in April 2016. The V2 module…

Raspberry Pi is a credit-card sized, single-board computer developed by the Raspberry Pi Foundation, a UK-based charity that works to ensure global access of computing and digital technology. It was initially developed as a low-cost microcomputer to impart digital skills to kids. It comes without any power supply or peripherals as it’s meant to be programmed…

Scratch is a programming tool for creating embedded games,stories and animations without using any written codings, rather using visually organized syntax which is in blocks with a drag-and-drop interface. One can use these blocks according to one’s requirement, scratch’s control of hardware is not only limited to the external inputs such as the keyboard and mouse.This article explains how to configure Scratch to extend its power to access GPIO(General Purpose Input and Output) of the Raspberry Pi.

Now voice control is not only limited to high end devices such as smart phones or iPhones. The Raspberry Pi, which is an open source hardware and completely customizable offers you the same. Plus, it’s cheap! You can customize it to play music, open gmail or maybe tell you some jokes.Here is a simple yet interesting example on how to customize your Raspberry Pi to light a led using voice control. In this tutorial we will learn how to install Voice Command, and making the configuration to turn a Led on and off.

This article is to make the procedure of setting up the WiFi. The Raspberry Pi is connected to Windows PC through Ethernet cable and the GUI is obtained using a VNC server. Although Raspberry Pi Model B comes with 100Mbps wired Ethernet, it is also essential to connect WiFi.The best arrangement is to purchase a cheap USB WiFi connector and utilize one of the USB ports to get to our WiFi home router. Setting up a Raspberry Pi utilizes the Raspbian OS to get to your remote system is simple – This article will guide you through the procedure.

This article is to provide step by step instructions for making Raspberry Pi as a web server where we can publish our web pages over local network. Apache is a prevalent web server application you can introduce on the Raspberry Pi to permit it to serve pages. All alone, Apache can serve HTML documents over HTTP, and with extra modules can serve element website pages utilizing scripting tools, for example, PHP. The fundamental services which are required to turn your Raspberry Pi into a web server are, Apache (the web server itself), PHP (scripting language).

This article is to make the process of transferring files from a Windows PC to Raspberry Pi easier. The Raspberry Pi is connected to a Windows PC through Ethernet cable and the GUI is obtained using a VNC server. Sharing files between Raspberry Pi and Windows is often very useful for Raspberry Pi users. Whether we need to transfer media files to the Raspberry Pi or want to share some software packages. This article discusses how to enable file sharing for a folder on the Raspberry Pi running the Raspbian OS.Microsoft developed the protocol called Common Internet File System (CIFS) for transfer of files between windows machines. The most popular implementation of CIFS in LINUX system is known as Samba and it allows Raspberry Pi to act as a CIFS file server, which allows a Windows PC to mount a folder on a Raspberry Pi and then allowing to modify(copy, delete, read and write) the files on it.

In this tutorial, we’ll learn how to interface the four-in-one BME680 pressure, gas, humidity, and temperature sensor with Raspberry Pi (RPi). This will include understanding how to log and retrieve data from a database. The BME680 can “communicate” with external controllers on either the serial peripheral interface (SPI) and I2C protocols. For this project, we’ll…

Home Security Systems are a need of the modern day houses. It is possible to design a simple home security solution by using Raspberry Pi and utilizing the power of Internet of Things. The home security system designed in this project is a simple and easily installable device built using Raspberry Pi 3, Web Cam and PIR Motion Sensor. The Raspberry Pi 3 Model B comes equipped with on-board Bluetooth (BLE) and Wi-Fi (BCM43438 Wireless LAN), so, it can be easily connected with a Wi-Fi Router to access a cloud service. 

This tutorial is about creating a QR code (quick response code) using Raspberry Pi B and Python 3.7. QR code is an optical machine-readable code. Optical means it can be decoded using any camera device. A direct competitor of QR code is Bar code. QR’s advantage over Bar Code is it’s faster to read and…

This tutorial will teach you how to scan QR codes using the Raspberry Pi module and the official Raspberry Pi camera. To attach the camera to the Raspberry pi, we use a dedicated header is available onboard. You can also use a USB camera with Raspberry Pi. The disadvantage is USB interface is slow. Also,…

In this project, our ultimate goal is to find and solve the different requirements in making a web controlled robot that recognizes and converts textual messages placed in real world to the computer readable text files. Our objective is to integrate the appropriate techniques to explain and prove that such capability, using their limited hardware and software capabilities and not to develop new character recognition algorithms or hardware for doing that.

This article is to provide step by step instructions for making Raspberry Pi as a webcam server where we can live stream video over a local network using python scripts and some required packages. A software package used in this tutorial is Motion which is an open source software with a number of configuration options which can be changed according to our needs.