This section covers electronics projects based on NodeMCU ESP8266 board. The NodeMCU is basically an open source firmware, and also commonly used term for the popular ESP8266 Development Board, which is a low cost, development board designed for IoT applications.
IoT based devices are getting increasingly popular among us, it is estimated that there will be around 1.5 billion devices connected to the internet by the year 2022. Hence, the engineers of the future are keen to learn how to build IoT devices, supporting that there are numerous development boards to enable quick IoT prototyping. We have used various popular boards…
Most of us are familiar with the Python programming language. Python is a very powerful programming language and used to build many applications from the Internet of Things to Artificial Intelligence (AI). By seeing the popularity of python, this community developed the reimplementation of Python which is called MicroPython.
So in this tutorial, we…
ESP32 series microcontrollers are low-cost, low-power system-on-chip microcontrollers that come with integrated Wi-Fi and dual-mode Bluetooth. The ESP32 series comes with Tensilica Xtensa LX6 microprocessor in both (dual-core and single-core) variations, and it has inbuilt antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power management…
There are many human identification systems that use signatures, fingerprints, voice, hand geometry, face recognition, etc. to identify persons but none of them can detect and recognize the persons in public areas such as airports, retail stores, and railway stations except the Face Recognition System.
Face recognition systems can, not only be…
With growing popularity of Smart Cities, there is always a demand for smart solutions for every domain. The IoT has enabled the possibility of Smart Cities with it’s over the internet control feature. A person can control the devices installed in his home or office from anywhere in the world by just using a smartphone or any internet connected devices. There are multiple…
Most of the farmers use large portions of farming land, and it becomes very difficult to reach and track each corner of the large land. Sometimes there is a possibility of uneven water sprinkles. This results in the bad quality crops, which further leads to financial losses. In this scenario, the Smart Irrigation System using the Latest IoT technology is helpful and leads to…
There are many IoT clouds available to store and monitor the data from various sensors. With increasing popularity of IoT, more number of sensors are used every day and these sensors produce anonymous data which are useful to control other devices on the IoT network. These data can be studied further and used to modify design or improve the system performance. The…
RTC or Real Time Clock is the most commonly used module in Electronics and embedded devices to keep track of time. But the problem with RTC is that the microchips in computers are not that much accurate and they can only provide the time of local device. On the other hand, using the internet to fetch the time from NTP servers is better solution for getting time as it is more…
In this tutorial we will interface OLED Display with NodeMCU ESP8266. NodeMCU is an open source IoT platform that includes firmware which runs on the low cost Wi-Fi enabled ESP8266 Wi-Fi SoC from Espressif Systems. It has GPIO pins for connecting other peripherals and it supports serial communication using SPI, I2C and UART pins. It also has pins for ADC and PWM. We…
MicroPython is a lightweight version of the Python programming language developed for programming microcontrollers, SOCs, and other embedded system devices. It was created to enable developers to leverage the “easy to learn and use” nature of python for embedded systems development. With Python now the major introductory language in most schools and with it being one of the…
OTA Programming (Over the Air) is a process which allows devices to upgrade their firmware or software wirelessly without any physical access. It uses wireless technology like Wi-Fi, Bluetooth, GPRS or 4G/3G rather than wired serial communication. OTA is used to reprogram the devices like microcontrollers, cellphones, computers, set-top box etc. OTA…
This comprehensive guide shows you how to interface the HC-05 Bluetooth module with the ESP8266 NodeMCU using Arduino IDE. Nowadays, Bluetooth has become an integral part of digital devices, and it comes built-in in most of the devices such as smartphones, laptops, PC, cameras, Watches, Fitness Bands and many more. Bluetooth has always been the dominant protocol in wireless…
