ESP8266 WIFI relay module 5VDC 10A/250VAC

The OKY3033-1 is an ESP8266 WiFi relay module designed for IoT applications, operating at 5VDC and capable of switching up to 10A at 250VAC. Here's a summary of its product data:

**Key Features and Specifications:**

* **Model:** OKY3033-1 (OKYSTAR)
* **Operating Voltage:** DC 5V
* **Communication:** WiFi (ESP8266 module, ESP-01 or ESP-01S)
* **Load Capacity:** 10A/250VAC, 10A/30VDC
* **Maximum Transmission Distance:** Up to 400m in open environment (depending on WiFi signal strength and setup).
* **WiFi Standards:** 802.11 b/g/n (2.4 GHz)
* **Module Size:** 37 x 25mm or 45 x 28mm (specifications vary slightly across sources)
* **Microcontroller:** Included on board
* **Relay Type:** SPDT (Single Pole Double Throw)
* **Relay Lifespan:** 100,000 cycles (some sources claim continuous pull of 10 million times)
* **Baud Rate:** 9600 or 115200 (check the specific module)

**Functional Overview:**

* The module integrates an ESP8266 WiFi module and a microcontroller, enabling wireless control of the relay.
* It can be used for smart home, IoT, and DIY projects.
* It allows you to control devices remotely via a smartphone app or web application within a local area network (LAN).
* In AP (access point) mode, the module can be connected by up to 5 clients simultaneously.
* It supports serial communication via AT commands for configuration.
* Some versions have an optocoupler for electrical isolation.
* LED indicators for power and relay status are typically included.

**Typical Applications:**

* Smart Home Automation
* Remote Control
* Internet of Things (IoT) projects
* Industrial Automation

**Important Considerations:**

* Some modules might require configuration using AT commands via a USB-to-TTL adapter.
* The ESP8266 module may need to be flashed with custom firmware for specific applications.
* Ensure proper electrical connections for safe and reliable operation.

Please note that specifications may vary slightly depending on the specific vendor and version of the module. Always refer to the product datasheet for the most accurate information.