Hello,
I am doing a lab using 2 555 timers. The first one produces a positive pulse for 25 seconds. The second one is used to flash an led. I have it working as such: When the logic switch A| is thrown, LED will flash for 25 seconds then go out. However, the final part of the lab is to have the LED stop flashing after 25 seconds and remain on constantly until the equipment is shut off using logic switch B|.
Can someone please help? Thanks in advance!
I've placed a picture of the diagram here: www.longworth.cc/lab3.jpg
Dave L
I am doing a lab using 2 555 timers. The first one produces a positive pulse for 25 seconds. The second one is used to flash an led. I have it working as such: When the logic switch A| is thrown, LED will flash for 25 seconds then go out. However, the final part of the lab is to have the LED stop flashing after 25 seconds and remain on constantly until the equipment is shut off using logic switch B|.
Can someone please help? Thanks in advance!
I've placed a picture of the diagram here: www.longworth.cc/lab3.jpg
Dave L
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