Posted by Circuits Arena on Monday, 19 February 2018
Cricket Stump LED Flasher Circuit | Bails LED Flasher Circuit is the artlcle explaining Cricket Stump LED Flasher Circuit Here in this article simple and easy to build and Bails LED Flasher circuit is given below. ...
Cricket Stump LED Flasher Circuit
Here in this article simple and easy to build and Bails LED Flasher circuit is given below.
Here, the LED Flasher / Oscillator IC LM3909 outputs a pulse when power is applied to pin 5 and pin 4. Two ambient light sensors (ALS-PT19) in both corners of the bails when the bails are on the stumps The ability to detect the light and the sensor acts as an open switch (T1 and T2) so that the power supply does not enter the flashlight circuit can. When the ball hits the stumps, the bails can float in the air, exposing the sensors in the bails to the light and acting as a closed switch (T1 and T2) as that bias from the battery reaches the turn signal circuit connected LED lights up alternately.
Position of Sensor in Bails
Cricket stump LED flasher circuit BThis circuit contains IC1 LM3909, ALS-PT19 sensor, Four RED LEDs (5mm) and few passive components. It can be easily constructed and placed inside the tiny bails without requiring more space. Use CR927 battery or you can use tiny battery cell to make fit in your bails size.ails LED flasher
Sensor and Circuit position in Stumps
Each stump placed with ALS-PT19 as a sensor and switch for the Flasher/Oscillator IC LM3909, on top of the stumps two bails are placed to cover three stumps when the presence of bails light sensor (ALS-PT19) couldn’t get light hence it reacts as an open switch and the LEDs are in off state.
If the ball hits the stump then the bails might be floating in the air hence there is a lot of possibilities that light sensor exposes to the light hence the light sensor reacts as Closed switch device then this circuit gets the bias and produces pulse at output pin, then the LEDs connected at the output glows alternatively.
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