The device application circuit of the monostable control circuit works as shown in the figure. It can be used as a time-delay energy-saving lighting for corridors and stairways. Before going upstairs, press one of the buttons AN1-ANn downstairs. The 2 pin of the time base integrated circuit IC NE555 is set by the low level trigger, and its output pin 3 immediately becomes high level. As a result, the 4 terminals of the controller DM are also at a high level, so the illumination lamp H is lit at this moment. Release the button, because IC NE555 works in monostable mode, its 3 feet should continue to output high level for a while. At the same time, the power supply charges C2 through R2. When the voltage across C2 reaches 2/3 power supply voltage, NE555 automatically resets, its 3 feet return to low level, and the 4 feet of controller DM become low level, which leads to internal circuit. Turned off, the light H is automatically turned off. In this way, when you go upstairs, you can press any button of AN1-ANn to illuminate the lights; when you go downstairs, press any one of them to illuminate the lights. AN1-ANn can be set according to specific needs. The monostable continuous working time can be determined by the values ​​of R2 and C2.
LED Flashing Badge (LED Flashing pin)
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2.Press the play button to flash.
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7.Export to:
