Feature: 1. Premium Designs: Stable onboard 12F WiFi module comes with 4M byte flash large capacity, and the module also has RST reset button and a programmable key.2. For Development: The I/O port and UART program download port of the WiFi module are all led out, facilitating secondary development. And the ‑12F supports the use of multiple development tools and provides reference programs in a development environment. 3. Smart Operation: For controlling loads with operating voltage within AC 250V or DC 30V, the relay module is equipped with LED indicator and 3 onboard shift registers 74HC595 control relay switches. 4. Reliable in Use: Can be widely applied to the WiFi wireless control on various appliances, the development board is a must have for smart home. 5. Easy to Install: Light in weight and compact in size as well, the ESP8266 relay module is very convenient to install within minutes. Specification: Item Type: 24 Channel Relay Module Package List: 1 x 24 Channel Relay Module1 x 22P Single Row Pin Header 1 x Short Circuit Jumper
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