Arduino IDE

With football fever reaching its peak, DHK DUDE from youtube built this pocket-sized, real-time World Cup score gadget for his desk. Powered by a Wemos D1 Mini microcontroller, this custom IoT gadget utilizes built-in Wi-Fi to seamlessly connect to the internet, fetching live match telemetry, group fixtures, and team data directly through web APIs. Like every maker…

Imagine driving into a crowded parking area and not knowing whether a space is available or not. This project solves exactly that problem by building a smart, automatic parking space detection system using the ESP32-CAM and the CircuitDigest Cloud API. With just a button press, the device captures a real-time image of the parking area and sends it over the internet…

In this tutorial, we are going to see how you can create a custom Graphical User Interface(GUI) using  LVGL and our favourite Arduino IDE. You can use any kind of microcontroller for this project; the only thing you need to do is to include the right pins in the Arduino code. Here, I’m using an ESP32-C3 based smartwatch for the demonstration. This has a display, touch, controller and…

We use WhatsApp almost every day so much that it has become an unavoidable part of our routine. From a simple “good morning” message to a friend to a “good night” text to family, most of our daily communication happens through it. Beyond just messages, we constantly share moments from our lives by capturing photos on our phones and instantly sending them to others.…

Traditional alarm clocks have remained fundamentally unchanged for decades. The ESP32 speaking alarm clock built in this tutorial replaces the beep at a scheduled time and expects the user to interpret the reason for the beep. While functional, this approach lacks intelligence and context. Modern embedded systems enable the creation of smarter devices that…

With the rapid growth of IoT-based monitoring systems, staying informed about what’s happening in real time has become extremely important. Whether it’s detecting an intruder, monitoring equipment, or tracking activity, users need instant alerts without constantly checking dashboards or screens. Email notifications offer a simple and reliable way to receive detailed…

In our everyday lives, environmental conditions like temperature and humidity can have a big impact, whether it’s in your home, office, greenhouse, or server room. Imagine leaving your room for a few hours and suddenly discovering that the temperature had got too high or the air had become too humid. Keeping track of these changes in real time can be challenging,…

In recent years, the demand for smart security and automated monitoring systems has increased significantly due to growing safety concerns and the need for real-time surveillance. Traditional security systems often require continuous human supervision, which can be inefficient and time-consuming. With the advancement of embedded systems and Internet of Things (IoT)…

In this tutorial, we will learn how to send an email from your ESP32 microcontroller. This feature allows important details such as sensor data, time of occurrence, images, and system status to be sent through email in a clear and reliable format. It is especially useful for event-based alerts, maintaining records, and monitoring systems over a long period. By…

This guide shows you how to build a motion detection system that sends instant WhatsApp alerts using the compact XIAO-ESP32 development board. When the IR sensor detects movement, the board immediately transmits a notification to your phone through the CircuitDigest Cloud platform. This wireless approach eliminates the need for GSM hardware or SIM cards, relying…

This project shows how to send instant WhatsApp alerts from a Raspberry Pi Pico W using WiFi and CircuitDigest Cloud WhatsApp API. The Pico W reads data from a rain sensor and, when moisture is detected, sends a notification directly to your WhatsApp. No GSM module, SIM card, or cellular hardware is required and everything works over a secure HTTPS request. The same WhatsApp notification…

In this tutorial, you will learn how to send WhatsApp messages from Arduino UNO R4 WiFi using the CircuitDigest Cloud Whastapp API. Instead of using a GSM module, SIM card, or complex WhatsApp Business API setup, this method allows your Arduino to send alerts over WiFi using a simple HTTPS request. This makes it much easier and more cost-effective to add real-time…