ESP32 Wireless Module DC 5V 4 Groups Relay Development Board ( Relay)

The ESP32 is a versatile microcontroller with built-in Wi-Fi and Bluetooth capabilities. Relay modules are used to control high-voltage devices or systems using a low-voltage microcontroller like the ESP32. They essentially act as remote-controlled switches. Here are some general points you might expect from a module with a similar name: ESP32 Microcontroller: The module likely features an ESP32 microcontroller, providing wireless communication capabilities through Wi-Fi and/or Bluetooth. 4-Channel Relay: The "4ch" in the name indicates that it likely has four relay channels. Each channel can control a separate electrical circuit or device. Wireless Connectivity: Since it's based on the ESP32, the module is likely capable of wireless communication, allowing you to control the relays remotely through a network. GPIO Pins: ESP32 boards typically have multiple General-Purpose Input/Output (GPIO) pins. These pins can be used to control external devices, such as the relays on this module. Programmability: You can program the ESP32 using the Arduino IDE or other compatible programming environments. This allows you to customize the behavior of the module according to your project requirements. Power Supply: The module may require a specific power supply voltage and current. Be sure to check the documentation for the correct power specifications. Compatibility: It might be compatible with popular IoT platforms and frameworks, allowing you to integrate it into your smart home or automation projects. MCU: ESP32 FLASH :4MB PS RAM: 8MB Bus Interfaces :UART, SPI, I2C, CAN, 12S, SDIO Wireless : Wi-Fi 802.11 b/g/n Bluetooth : BLE V4.2 Onboard Functions : 4 Groups of relays Optocoupler Isolation : 16 Expansion GPIO