Raspberry Pi

In previous tutorial we have discussed about MQTT Protocol and installed local MQTT server on our Raspberry Pi for controlling the GPIO locally. But the drawback of local MQTT server is that we cannot control the GPIOs from anywhere in the world, it only provides services locally. But if this MQTT server is hosted on some cloud then any appliances connected to Raspberry Pi…

Machine Learning and Artificial Intelligence are the trending topics in the industries now days and we can see their increasing involvement with the launch of every new electronics device. Almost every application of Computer science engineering is using Machine Learning for analyzing and predicting the future results. Already, there are many devices rolled in the market…

The popular operating system used in Raspberry Pi is Raspbian which is a linux based official OS for Raspberry Pi, using which we have build many Raspberry Pi Applications. We can easily install Linux and Windows operating systems on Raspberry Pi, but due to the lack of official support from Android, installing Android on Raspberry Pi has never been that easy. Some…

Raspberry Pi is one of the most famous low cost computer and powerful tool for prototyping different types of IoT and embedded projects. With the popularity of Raspberry pi in the IoT domain, Particle cloud started support for this board on its platform.

Particle Cloud is a very popular IoT platform which can help you to start with everything that…

MQTT is a protocol used to send and receive messages over internet. We previously used this protocol in Iot Electricity meter and Raspberry Pi Alexa to publish the data on internet. In this tutorial we will get to know more about the MQTT and the terms related to it. Here we will use the Raspberry Pi as local MQTT broker and control an LED connected to NodeMCU ESP12E through…

Choosing a communication protocol for communication between microcontrollers and peripheral devices is an important part of embedded system. It is important because the overall performance of any embedded application depends on communication means as it is related to cost reduction, faster data transfer, long distance coverage etc.

So far, we have…

In previous tutorial we interfaced the XBee module with Arduino Uno and made them communicate wirelessly using XBee module. Now we will interface XBee module with Raspberry Pi which will act as a receiver and make it communicate wirelessly with another XBee module (XBee explorer board) which is serially connected with the laptop.

Face Recognition is getting increasingly popular and most of us are already using it without even realizing it. Be it a simple Facebook Tag suggestion or Snapchat Filter or an advanced airport security surveillance, Face Recognition has already worked its magic in it. China has started using Face Recognition in schools to monitor student’s attendance and behaviors. Retail…

In this age of IoT (Internet of Things) where everything can be controlled remotely using your smartphone, why to carry keys with you. There are lots of technologies to support wireless controlling of devices like RFID, Bluetooth, Wi-Fi, LoRa. We previously built some door alarms and door controlling circuit to open and close the door wirelessly:

Microcontrollers work only with digital values but in real world we have to deal with Analog signals. That’s why ADC (Analog to Digital Converters) is there to convert real world Analog values into Digital form so that microcontrollers can process the signals. But what if we need Analog signals from digital values, so here comes the DAC (Digital to Analog…

Earlier day’s computer obtained input information from keyboards and mouse, now they have evolved to be able to process information from images and videos. The ability of a computer (machine) to extract, analyze and understand information from an image is called as Computer Vision. In recent years the capability of Computer vision has become sophisticated enough, not only to…