NodeMCU
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IoT based Smart Jar using NodeMCU ESP8266 and Ultrasonic Sensor Previously we built a smart container using weight as a measurement parameter to send alerts. Now in this IoT smart jar, we will check the level of a Jar using Ultrasonic sensor and send an alert email to the user. The level of Jar will also be displayed on a webpage hosted on NodeMCU ESP8266. This smart Jar allows us to keep track of the stocks,… |
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NodeMCU Data Logger to save Temperature and Pressure on Thinger.io Cloud Platform We previously used NodeMCU to log temperature data in the Google sheet. Now here we are going to send data to Thinger.io IoT cloud and display it in an attractive graphical format. A BMP180 sensor is interfaced with NodeMCU ESP8266 to collect the temperature, humidity, and altitude data, which will be sent to the Thinger.io platform. In this tutorial, we will learn how… |
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Automatic Hand Sanitizer Dispenser with COVID19 Live Updates Corona Virus (Covid19) is wreaking havoc in the world. Almost every country is suffering from the Corona Virus. WHO has already announced it a Pandemic disease and many cities are under lockdown situation, people can’t step out of their homes, and thousands have lost their lives. Many websites are providing live updates of the coronavirus cases like Microsoft’s Tracker, Esri… |
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Build your own Wi-Fi Repeater or Range extender using NodeMCU to connect all your IoT Devices We are in the Internet of Things (IoT) generation! These days, you can control your home gadgets/devices like air-conditioner, room heater, water heater, etc. remotely from anywhere and the device to do this can easily be built or purchased off the shelf. Over the course, we have also built a few IoT based home automation projects using Arduino, ESP, and Raspberry Pi. But… |
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Using Wi-Fi Manager on NodeMCU to Scan and Connect to Wi-Fi Networks 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… |
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IoT based Smart Parking System using ESP8266 NodeMCU 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… |
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IoT based Smart Irrigation System using Soil Moisture Sensor and ESP8266 NodeMCU 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… |
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Log Temperature Sensor Data to Google Sheet using NodeMCU ESP8266 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… |
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Internet Clock: Display Date and Time on OLED using ESP8266 NodeMCU with NTP 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… |
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Interfacing OLED Display with NodeMCU ESP8266: Displaying Bitmap image on OLED 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… |
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Programming NodeMCU ESP8266 Over-the-Air (OTA) using Arduino IDEWhat is OTA Programming?
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… |
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Bluetooth Module Interfacing with ESP8266: Controlling an LED 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… |
