Interfacing RC522 RFID Module with ESP32: UID Scanner & Access Control System Radio-Frequency Identification (RFID) technology is a cornerstone of modern security, access control, and inventory tracking. In this project, we interface an RC522 RFID module with an ESP32 microcontroller…
Smart Air Quality & Gas Leakage Monitor Using ESP32, MQ-135, and OLED Display For home and workplace safety, real-time detection of hazardous gas leaks and air quality monitoring are crucial. In this project, we construct a small air monitoring node…
Biometric Access Control: ESP32-C3 OLED & AS608 Fingerprint Scanner Using the little ESP32-C3 board and its integrated 0.42-inch OLED display, create an intelligent biometric authentication system. When paired with an AS608 optical fingerprint scanner, this project updates real-time progress messages…
Precision Dual-Button Servo Angle Controller with WeMos D1 R32 and SG90 Take charge of your automation and robotics projects with your hands! In this lesson, an SG90 micro servo motor will be controlled by a WeMos D1 R32 board, which…
Touch-Controlled 12V DC Fan with ESP32 and L298N Motor Driver Sleek capacitive touch controls can take the place of mechanical buttons! In this project, an ESP32 employs its native capacitive touch sensing hardware (GPIO4) to construct a toggle switch that…
Wireless Temperature and Humidity Monitoring with ESP-NOW: Automating a 12V DC Fan via ESP32 Discover how to use two ESP32 microcontrollers and the ESP-NOW protocol to create a peer-to-peer wireless climate monitoring and control system. A DHT22 sensor on a…
Non-Contact IR Temperature Monitoring & Remote LED Control via ESP32 & Bluetooth Do you need to manage an output indicator while wirelessly monitoring the temperature without making physical contact? When used with an ESP32, the MLX90614 Infrared (IR) Thermometer makes…
Building a Pocket-Sized Environment Monitor with ESP32-C3, DHT22 & 0.42″ OLED When building micro-DIY projects, finding the sweet spot between a tiny footprint and functional data display can be a fun challenge. In this project, we are building an ultra-compact…
DIY ESP32-C3 Retro Mini Game: Play Space Trash on a 0.42″ OLED Display You can play retro arcade games directly on a small microcontroller, so they’re not limited to vintage consoles! In this project, we’re creating Space Trash, a fast-paced,…
DIY ESP32 Bluetooth Audio Receiver with MAX98357A I2S Amplifier Create a wireless Bluetooth sound system out of any passive speaker! This guide will teach you how to use the MAX98357A I2S Class-D amplifier module to construct a high-quality ESP32 Bluetooth…
