This project demonstrates how to control a relay and an external LED using an ESP32 via a web server. The ESP32 connects to a WiFi network and hosts a web server that allows users to turn the relay on ...

This project demonstrates how to control a relay and a LED using an ESP32 microcontroller based on voice commands processed through a speech-to-text API. Users can turn the LED on and off by speaking ...

It also features a a built-in buzzer, an RGB LED, and is housed in a DIN Rail-mountable ABS case. Waveshare ESP32-S3-Relay-6CH specifications: Wireless module – ESP32-S3-WROOM-1U-N8 by default MCU – ...

Waveshare RP2350-Relay-6CH is a Raspberry Pi RP2350-based industrial 6-channel relay module with an isolated RS485 interface, 7 to 36V DC ... and demo code to control the six relays over RS485, test ...

Code Explanation. We explained Face Recognition with ESP32 in the previous article; here we will modify the same code to control a solenoid door lock. The complete code is divided into four parts. One ...

But with that, the ESP32 is up and running. These modules are small and compact enough that it’s actually possible to build an entire dev board setup inside a USB module for a Framework laptop, too.

Now if the ESP32 LED matrix project you have in mind requires full color and high refresh rates, don’t worry, we’ve got a solution for that.

ESP32 for professionals As you get further into the book the chapters cover complex applications such as web server projects and in chapter 13 the use of the ESP32’s Bluetooth capability — I found ...

Code Explanation. We explained Face Recognition with ESP32 in the previous article; here we will modify the same code to control a solenoid door lock. The complete code is divided into four parts. One ...