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Industry Noor
Rotating Color RGB Light
December 10, 2020
![20201217_212010[544].jpg](https://static.wixstatic.com/media/7a2ee8_6b352ef3302e4b198ea469cb50ecd00a~mv2.jpg/v1/fill/w_538,h_311,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/20201217_212010%5B544%5D.jpg)
Description
This experiment consists of an arduino controlled RGB light which changes to a different color at the push of a button. The light colors change seven times until the light turns off.
![20201217_212026[545].jpg](https://static.wixstatic.com/media/7a2ee8_7b69f9e50ba84d6ba8770e98664c5217~mv2.jpg/v1/fill/w_461,h_346,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/20201217_212026%5B545%5D.jpg)
This experiment uses a pull-down resistor (10k resistance) for the button to control the flow of the current to prevent the high-impedance state (as opposed to 0 and 1 state). Notice the 10k resistor is connected to ground, making it a pull-down resistor.
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Additionally, three 220 ohm resistors are connected to RBG light to control current/brightness of light.
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Additional Data
Pull down resistor schematic (made in Multisim)
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