Cheap LoRa Gateway using Pi & RAK831

RAK831 LoRa Gateway

Lately, I have been working with LoRAWAN and I don’t have Lora gateway around. As you might be knowing LoRAWAN network requires a gateway to push data to the internet. As Lora is not an IP based protocol the gateway helps it in doing so. Basically, multiple LoRAWAN nodes transmit data to the gateway and the gateway transfers the concentrated data to server backend. Server backend which resides in the cloud contains a network server which helps in managing the network and the application server which is responsible for the data and…

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RPi GPIO Programming using Arduino Web IDE

RPi GPIO Programming using Arduino Web IDE

Recently Arduino has launched support for programming ARM-based SBCs by using the Arduino web editor and Raspberry Pi is one of the SBCs in the list. This video is all about the basic setup to get started with the programming of the Raspberry Pi GPIOs by using Arduino codes. The setup is pretty simple and will help you if you are more comfortable in the Arduino ecosystem as compared to python. More depth functionalities are yet to be checked.  

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Respeaker 2 HAT With Raspberry Pi

Respeaker HAT

This article is around Raspberry Pi and this Re speaker 2 Mics Pi HAT. ReSpeaker 2-Mics Pi HAT is a dual-microphone expansion board for Raspberry Pi designed for voice applications, like Amazon Alexa or Google Assistant. So if you are interested in playing around Alexa or assistant enabled applications with Raspberry Pi you can certainly try this out. We will set it up with Raspberry Pi and will check some demo applications. The board is developed around WM8960, a low power stereo codec. There are 2 microphones on both sides…

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Access Watchdog Timer of Raspberry Pi using JAVA

This tutorial is all about using the watchdog timer of Raspberry Pi by using JAVA. For this, we are going to use Pi4J library. Watchdog Timer: “A watchdog timer (sometimes called a computer operating properly or COP timer, or simply a watchdog) is an electronic timer that is used to detect and recover from computer malfunctions. During normal operation, the computer regularly resets the watchdog timer to prevent it from elapsing, or “timing out”. If due to a hardware fault or program error, the computer fails to reset the watchdog, the timer will elapse and generate a timeout signal.…

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NATASHA: AI assistant using Raspberry Pi

This video is around AI Assistant, Natasha with a voice interface. She can do all basic stuff, identify your voice, can read out text from images, can control devices in your home making them more interactive, and lots more.Apart from that, she can understand the local language, which in our case is Hindi. The whole project is developed in Python. This project is made open source.To view more of this project, and contribute to it, Check the GitHub link: bit.ly/2ldEI5X

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Firmata protocol with Raspberry Pi and Arduino

Firmata with Arduino and Raspberry Pi

Firmata is a protocol that is used to communicate with microcontrollers from any tablet/pc over the serial interface. There are implementations of this for other platforms too along with Arduino. You can find support for this if you are using any Arduino IDE released after 2008.Use of this protocol lets you access GPIO of Arduino from any host device natively without uploading the sketch each time you change the sketch. You can use Arduino as ADC for your Pi as it doesn’t have native ADC pins, you can also interface…

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OSMC on Raspberry PI with Setup and Control using Android App

osmc

A video about the installation of OSMC onto Raspberry Pi to make a complete media center for home entertainment. The video shows how to install OS as well as configuring it such that it can be accessed by Android App so that it can be controlled wirelessly. Check out the video for more details.

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IOT With Raspberry Pi using JAVA

IOT_Pi

This post features videos that I published to my YouTube channel in the series “IOT with Raspberry Pi “. This basically contains 4 videos around raspberry pi that show how to use Raspberry Pi as an IOT device. It starts from interfacing sensor to publishing the sensor data to cloud server using protocols like REST or MQTT. For the entire project I have used JAVA and on top of that used various libraries for specific tasks like Pi4J, Unirest, Eclipse PAHO etc (Links provided below). If you have watched any of the videos you…

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DHT12 Interfacing with Raspberry Pi using Pi4J

DHT12

This video around raspberry pi showing how to interface DHT12 humidity and temperature sensor with raspberry pi by using JAVA nad Pi4j. DHT12 its a temperature sensor with a 1-Wire and I2C interface to connect with external controllers and having 1-Wire interface makes it compatible with the older DHT11 sensor but with a higher accuracy. For this tutorial, we are going to use the I2C interface of the sensor and to interact with it, we will be using JAVA. One issue with the DHT12 I2C interface is that the device…

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Send data using MQTT from Raspberry Pi with JAVA

MQTT JAVA

This is the third video in the series “IOT with Raspberry Pi” and that’s using JAVA. The series comprises of Sensor interfacing using pi4J, REST API usage with JAVA, MQTT usage with JAVA and finally adding all to the same project and running over Raspberry Pi. last two videos shows how to interface DS18B20 1 wire temperature sensor with Raspberry Pi and send data to Thingspeak by using REST API with JAVA. If you have not checked those you can do that with the links down below. This video is…

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