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.
In the Internet, all the websites are hosted on a computer and this computer is called a server. Since this particular server is used to serve web pages and web requests, we call it a web server. Instead of using a computer, we can also use an ESP32 to respond to web requests, thanks to the ESP32’s built-…
In the previous parts(Part 1, Part 2, Part 3) of this project, we investigated different aspects of our smart watch projects and learned to integrate and test each individual part. In this we are going to use what we have learned to create our own smartwatch from scratch, using a combination of hardware and software components. Throughout…
Do you remember the old classic 8-bit games? Perhaps you enjoyed your leisure time in front of an early home computer or video game system. They were so nostalgic, and every kid in that era loved them. Now they are replaced with modern high-end graphics and game dynamics. Yet many people still love to play those classic games.…
If you are thinking about building yourself a burglar alarm or you are thinking about Automating lights in your room, then you should definitely consider using an HC-SR501 Passive Infrared Sensor or PIR sensor for your project, because as the name suggests a PIR sensor allows you to detect when a person or animal moves in or out from the range of your sensor. And you…
Want to give your project a sense of sound! Then follow along because in this project, we are interfacing a sound sensor to build some interesting projects with it. The KY-038 sound sensor we are using uses a condenser-type microphone to detect sound waves, which gives us a perfect balance of stability and reliability. So in this article, we decided to interface…
A servo motor is a type of motor that is used to control the precise movement of a device. It typically consists of a DC motor, a control circuit, and a feedback mechanism. The feedback mechanism is used to provide information about the position of the motor shaft to the control circuit, which then adjusts the power to the motor accordingly. This feedback loop…
If you are an electronics engineer or a beginner and want to build an obstacle avoidance robot, you need to first learn how an obstacle avoidance system works! which makes this project of ours super important, because in this project we are going to interface a HC-SR04 Ultrasonic Distance Sensor module with ESP32 and we are going to know every little detail about the…
In the last tutorial, we look at the ESP Rainmaker platform and how we can use it with the ESP32 through Arduino IDE. In this part of the tutorial, we will investigate the RainMaker cloud platform a bit deeper and will try to add voice assistant functionality to it. This setup can be used to build IoT based Smart home, Voice controlled…
In this tutorial, we are going to look at the ESP RainMaker. ESP RainMaker is the end-to-end platform for the ESP chips from Experessif. It is designed as a successor to Experessif’s ESP Jumpstart platform. ESP RainMaker enables customers to quickly design, build and deploy AIoT solutions based on enterprise-level cloud computing without…
Fog and Lights is a combination that has the potential to amuse adults and kids alike, so we decided to venture into the realm of ultrasonic mist maker modules and got our hands on one without much trouble. When we first tested a tiny-looking ultrasonic humidifier module, we were intrigued by the capabilities this small module possessed.…
In the last part, Designing Smartwatch using ESP32, we have looked at how to interface the BH1750 ambient light sensor and the MAX30102 Heart rate sensor for our smartwatch project. In this part, we will be looking at how to interface some other types of sensors to our smartwatch. So, here we will be interfacing the HMC5883L/QMC5883L…
In the last part, DIY Smartwatch using ESP32, we have looked at how to make some interesting watch faces for our smartwatch project. In this part, we will be looking at how to interface some sensors to our smartwatch and will be interfacing the BH1750 ambient light sensor and the MAX30102 Heart rate sensor. We will be looking at…
