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5V Low-Level Trigger 1-Way Relay Expansion Board Module
This module 5V relay£¬ low level trigger Product description: 1£¬ The module in line with international safety standards£¬ control area and the load area has a separate slot; 2£¬ The use of Song Le genuine relay; 3£¬ With power and relay action instructions£¬ pull up bright£¬ off is not bright; 4£¬ The signal input signal£¬ the common side and often open will be turned on; 5£¬ Can be used as a single-chip development board module£¬ can be used as home appliances control; 6£¬ Control the DC or AC signal£¬ you can control the 220V AC load; 7£¬ There is a normally open and a normally closed contact; 8£¬ Blue KF301 terminal control line is more convenient.