I am trying to make a traffic light and having a bit of trouble gating the circuit to change states. Is there something I am missing. Please help. |
by s3665153
September 09, 2018 |
Try using a 555 timer and a 4017 counter followed by diode logic to get the four states, 1234 red 5 red amber 6789 green 10 amber, |
by mikerogerswsm
September 09, 2018 |
I am hoping to only make use of D flip flops. |
by s3665153
September 09, 2018 |
Impossible - you will need first to generate a clock! |
by mikerogerswsm
September 09, 2018 |
If you look at a 4017 datasheet you will see a Johnson twisted ring of five D flip flops and some logic gates. You will need some glue logic instead of diodes to detect the 1234, 5, 6789 and 10 states. Also some lamp drivers. End. mike |
by mikerogerswsm
September 10, 2018 |
Thanks will do. |
by s3665153
September 11, 2018 |
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