Sonoff / SV Low Voltage WiFi Wireless Controller

Sonoff SV is a low-voltage Wi-Fi-enabled switch designed for smart home applications, supporting a DC power supply range of 5-24V. Its design allows for safe control of various devices, making it suitable for projects requiring low-voltage operation.

Key Features:

Low Voltage Support: Operates within a 5-24V DC range, ensuring compatibility with a variety of low-voltage devices.

Power Supply Isolation: Features a power supply isolation circuit, enabling control of both AC and DC power. Note that soldering is required to utilize this function.

GPIO Pins for Expansion: Provides access to GPIO pins (GPIO4, GPIO5, GPIO14), facilitating secondary development and customization.

App Integration: Compatible with the eWeLink app, allowing for remote control, scheduling, and status monitoring via smartphones.

Specifications:

Power Supply: 5-24V DC

Wireless Standard: 802.11 b/g/n

Security Mechanism: WPA-PSK/WPA2-PSK

Operating Temperature: -20°C to 70°C

Dimensions: 53 mm × 25 mm × 19 mm

Usage Considerations:

Custom Firmware Installation: Custom firmware such as Tasmota can be installed on the Sonoff SV for enhanced performance. This process requires technical expertise and may void warranties.

Safety Precautions: When modifying the device to control AC power, ensure proper isolation and adhere to safety guidelines to prevent electrical hazards.

The Sonoff SV is a versatile component for DIY enthusiasts aiming to integrate low-voltage devices into their smart home systems. Its customizable features and support for secondary development make it a popular choice for various applications.