4‑Channel I²C Relay Expansion Module: This XL9535‑based relay control module uses I²C communication to expand relay outputs with minimal IO usage, making it ideal for microcontroller projects that require multiple relay controls with stable performance.
Scalable Addressable Design: Configurable address pins allow multiple modules to operate on the same I²C bus, enabling easy expansion for multi‑relay applications without increasing wiring complexity.
Optocoupler Isolation: Built‑in optocoupler isolation protects the control side from electrical noise and voltage spikes. 2500Vrms optocoupler isolation between input and output.
Wide Load Voltage Support: Powered by a standard 5V DC supply, the module can safely control high voltage loads, making it suitable for a wide range of control systems and electrical projects.
High‑Current Relay Output: Each relay can drive heavy loads up to 10A (resistive load) or 7A (inductive load), ensuring outstanding performance and reliable switching operation for a wide range of applications.
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