In this tutorial, we will build a simple yet powerful data logger using the ESP32 microcontroller. The device will: Read temperature data using a sensor (e.g., DS18B20 or DHT11/22). Store the data on an SD card. Provide real-time monitoring via a web server using WebSockets.

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The ESP32, a popular microcontroller, features an internal temperature sensor. While primarily intended for monitoring the chip’s temperature rather than ambient conditions, it can still be useful in certain applications, such as monitoring device performance or debugging. This tutorial will walk you through how to use the ESP32 internal temperature …

The Arduino UNO R4 WiFi has a vibrant 12×8 LED matrix for creating visual patterns, animations, and more. To help you design and implement custom patterns for the LED matrix, we’ve developed a tool that simplifies the process.

A rotary encoder is a versatile device often used as an input knob to control volume, scroll menus, or adjust values. It can detect rotation direction and the amount of rotation, making it perfect for Raspberry Pi projects.

What is a Resistor? It limits the flow of current in a circuit, which is an essential function of most circuits, and it is a passive two-terminal electrical component. Their resistance values are typically stable over a wide range of environmental conditions due to their construction of metal wires or …

What is an AC Capacitor? An AC capacitor is an electrocomponent that, in basic terms, stores electrical energy for a short period or releases energy stored in some other form. This type of apparatus is present in electronic devices or electrical appliances operating on alternating current supply for correct working …

The ESP32-C3 is a standout microcontroller in the ESP32 series, developed by Espressif Systems, designed to offer low power consumption, enhanced security, and wireless connectivity. Built with a RISC-V core, this chip is gaining popularity among developers looking for a cost-effective yet robust solution for IoT applications. Let’s dive into …

This tutorial guides you through building a heart rate sensor project using an ESP32 and a MAX30102 breakout board. The heart rate data is dynamically displayed on a web page hosted locally by the ESP32, enabling real-time updates without the need to refresh the page. Devices connected to the same …

In this project, we’ll build a fun “Tug of War” game using an Arduino, a LED bar graph display, and buttons. The game mimics a classic tug-of-war, where two players compete to press their button rapidly to pull the “rope” (represented by a LED) to their side.