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Brief Explanation

1、 Size: 6.8CM * 2.1CM

2、 Main chips: NE555

3、 Working voltage: 12V DC

Product Characteristics

1. Connect the power relay to draw and disconnect at a fixed cycle of 1-10 seconds. Specifically, after supplying a 12V power supply to the relay, the relay will immediately draw and connect. The output terminal of the relay is in the following states: normally open and connected to the common, normally closed and disconnected from the common; After a delay of 1-10 seconds (adjustable), the relay is released. At this time, the state of the relay output terminal is: normally open and disconnected from the common, normally closed and connected to the common; As long as the module is continuously powered on, this state will remain in a fixed cycle of 1-10s for suction and release.

2. The delay time is adjustable, ranging from 0 to 10 seconds

4. Adding a potentiometer can increase the delay time

5. Increasing capacitor C1 can increase the delay time

6. Equipped with an input power indicator light

7. Equipped with relay engagement indicator light

8. Can control equipment with AC voltage below 220V/10A. (Control equipment 2000W)

9. Equipped with relay continuous current protection.

10. Delay time formula: T＝1.1RC。 For example: capacitor 100uf, resistor 100K T=1.1 * 100000 * 0.0001=11 seconds

Applicable occasions: microcontroller learning, electronic competitions, product development, graduation project

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