1 Channel Relay Board Module 5V Low Level Trigger Relay Expansion Board LM2596 DC-DC Buck Converter Adjustable Step Down Power Supply Module The microcontroller's ADC converts these

The microcontroller's ADC converts these voltages into digital

and facility managers use this device to implement energy monitoring

and cost in multi-device control systems

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1 Channel Relay Board Module 5V Low Level Trigger Relay Expansion Board LM2596 DC-DC Buck Converter Adjustable Step Down Power Supply Module The microcontroller's ADC converts these1 Channel Relay Board Module 5V Low Level Trigger Relay Expansion Board 1 Channel Relay Board Module 5V Low Level Trigger Relay Expansion Board Product description: This module is in line with international safety standard, control areas and load area have the isolation groove. Have power and relay operation instructions, connect the light will on, disconnect the light will off. When signal input, the public end and often start conduction. Can be used