타임 딜레이 릴레이 모듈 -NE555
(TIMER RELAY CLICK)
개요
- 본 제품은 타임 딜레이 릴레이 모듈 -NE555입니다.
- NE555 타이머를 기반으로 디자인되었으며, SRD-5VDC-SL-C 릴레이를 장착하고 있습니다.
- SPI 인터페이스를 가지고 있습니다.
특징
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HOW DOES IT WORK?
Timer Relay Click is based on the NE5555, a precision timer from Diodes Incorporated. It works so that when the trigger is in a LOW logic state, it will start a delay regarding the threshold and then activate the relay. The TPL0501, a 256-tap single-channel digital potentiometer from Texas Instruments, determines the threshold. By setting a desired value on this digital potentiometer, you are setting a threshold on the NE5555 for the delay. When you hit the onboard trigger button, you activate the relay regarding the delay you set by the digital potentiometer.
Timer Relay Click uses a 3-wire SPI serial interface of the TPL0501 to allow the host MCU to set the threshold. Besides the trigger button, you can trigger the NE5555 over the TRG pin of the mikroBUS™ socket. When the timer hits the threshold and after delay activates the relay, it will also turn the TIMER LED On. The relay itself can withstand up to 10A and 220VAC/28VDC.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.
SPECIFICATIONS
Type Relay Applications Can be used for developing and controlling high-power applications that require delayed timing On-board modules NE5555 - precision timer from Diodes Incorporated Key Features Time-delayed operation, trigger control by the host MCU or over the button, digital potentiometer for setting the threshold, screw terminals for connecting the load, long mechanical life of the relay, and more Interface SPI ClickID Yes Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V