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Recent content by tobias1997
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Pedestrian Crossing Light Project
This is the circuit i have built so far. For the project i have to use a nand gate to detect / change the lights. As it is currently the green is on as soon as the battery is connected. So i need to use the Nand gate to trigger the the second timer once the first has been on then turned off. and...- tobias1997
- Post #7
- Forum: LEDs and Optoelectronics
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Pedestrian Crossing Light Project
i have the red LED connected to pin 3 of the first 555 and have now also connected pin 3 of the first 555 to pin 2 of the second 555. Both 555 timers are setup as mono-stable multi-vibrators. however when connected to the battery the green LED is default on, when the button is pressed the red...- tobias1997
- Post #3
- Forum: LEDs and Optoelectronics
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Pedestrian Crossing Light Project
I am attempting to design and implement a digital circuit for pedestrian traffic light in a way when a push button is pressed a red light become on and stays on for 10s showing the activation of the 'traffic light'. Then a green light becomes on and stays on for 5s which shows the pedestrian can...- tobias1997
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- Replies: 6
- Forum: LEDs and Optoelectronics
