ESP8266 Projects

The ESP Wi-Fi modules are microcontrollers with Wi-Fi and Bluetooth (not all models) capability, developed by Espressif Systems. It consists of many development boards like ESP8266-01, ESP8266, NodeMCU, ESP12, ESP32 etc. All the development boards can be easily programmed using Arduino IDE and can be used in a variety of applications like Home Automation, Internet of things (IoT), Smart devices etc.. The below list consists of a large collection of ESP8266 projects with circuit diagram, code and hardware demonstration.   You can also check out the Arduino ESP8266 projects if you have to interface an ESP with Arduino board.

Critical BLE Security Vulnerability Found in Major Battery Management Systems

We recently came across reports covered by news outlets about electric vehicles, specifically e-rickshaws, being remotely hacked and stalled in the middle of busy roads. The attackers were using Android apps, some of which were available on the Google Play Store under names like BAT-BMS, Epoch Li-on and Overkill Solar. These apps were apparently able to connect to some specific brands of the…

 DIY World Cup Live Score Gadget

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…

Drones are amazing little machines, but most of the time they are controlled using remotes filled with buttons and joysticks. While experimenting with our LiteWing drone, we started wondering, wouldn’t it be cool if the drone could simply listen to what we say? That idea eventually turned into this project. We built a voice controlled drone using ESP32 for the…

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…

By Angel Lalu

Smart home systems are increasingly adopting intelligent sensing technologies to understand indoor environments and automatically adapt to the user's needs. Among these technologies, cameras play a critical role in tasks such as human presence detection, room occupancy monitoring, and context-aware automation for…

Have you ever wanted to build your own IoT-based Weather Monitoring Station? Imagine monitoring real-time temperature, humidity levels, atmospheric pressure, rainfall detection, air quality index (AQI), and more—right from your local network. With the power of the Arduino UNO R4 WiFi, you can create a dynamic weather dashboard web page that displays all your environmental data in real-time…

WiFi-Controlled Smart Vacuum Cleaner

The maker, Rizwan's Ideas, made a video on DIY vacuum cleaner 3 years ago. A lot of people loved the original, but many wanted Wi-Fi and IoT features, so he decided to upgrade it with better tech and smarter controls. When he received the DIY Flexi Robot Car Kit from OSOYOO, it turned out to be the perfect base for his new and improved version. 

The kit comes with Arduino Mega,…

 DSTIKE Deauther Watch V4S IR

The DSTIKE Deauther Watch V4S IR is the latest version of the Deauther Watch X, a wearable device designed for Wi-Fi network testing. This upgrade enhances security research capabilities with an infrared (IR) transmitter, an improved battery, and a more ergonomic design for better portability.

Powered by an ESP8266 microcontroller,…

Building Tiny Battle Bot with ESP8266

An electronics enthusiast recently shared an impressive project called Tiny Battle Bots, inspired by the popular BattleBots game show. This creative endeavor combines 3D printing and custom PCB design to produce compact, soccer-playing robots. At the heart of the project is the ESP8266 microcontroller, which enables wireless control for precise movement and gameplay…

ESP32-C5

The ESP32 series of microcontrollers is one of the go-to choices for projects where performance and connectivity are a priority, all while providing a powerful processor and wireless capabilities at an affordable price. These MCUs quickly gained popularity due to their impressive set of features, built-in Wi-Fi and Bluetooth, and exceptional price-to-feature ratio. Compared to many traditional…