![](https://s3images.coroflot.com/user_files/individual_files/717749_ak6h3coi_h_mxskafg4wvkw3a.jpg)
An arduino circuit programmed to alternate between coloured LEDs at the click of a switch, this could be useful for products such as delayed timer switches in traffic lights that change the traffic light colours depending on if the button is pushed.
![](https://s3images.coroflot.com/user_files/individual_files/717749_30px0mrnscp7_0kly4eg7ljoa.jpg)
![](https://s3images.coroflot.com/user_files/individual_files/717749_qcbgza7nhlzpbmotzpjfcysmv.jpg)
An Arduino circuit programmed to control 3 LED lights and make them flicker in a pattern to resemble the colour and flickering of a candle.
![](https://s3images.coroflot.com/user_files/individual_files/717749_xxisj3zt58njah_jtx5v9_usc.jpg)
![](https://s3images.coroflot.com/user_files/individual_files/717749_vc9ilthpsn88agrfzwnnt3buc.jpg)
An Arduino circuit programmed to perform a pattern flickering between two LED lights, this particular circuit would be useful in warning or attraction lights.
![](https://s3images.coroflot.com/user_files/individual_files/717749_34wpalvagb970b8ym9_btdeiu.jpg)
An Arduino circuit programmed to perform as an electronic lock that could be installed within a door lock to only allow access when the correct sequence of buttons is pushed.
![](https://s3images.coroflot.com/user_files/individual_files/717749_tlgq2gqbuuihdmunricmyr6jy.jpg)
An electronic circuit that uses a capacitor and different value resistors to control a bright blue LED and keep the light on for two seconds then off for one as the capacitor charges.
![](https://s3images.coroflot.com/user_files/individual_files/717749_kjjenf800pyyxrwjikob2fgd9.jpg)
An electronic circuit that requires the use of a conductor to join two wires to complete the circuit and power the LED, in this case it is used as a touch sensitive light.
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