Good day
I need help with finding the correct componants to use to achieve the following:
1 push button to select 3 individual LEDs with every push..i.e.
Scenario #1: from off status,push #1 & LED #1 switches on. Push #2,LED #1 switches off and LED #2 switches on.Push #3,LED #2 switches off and LED #3 switches on.Push #4 all LEDs off.
Scenario #2:from off status,push #1 & LED #1 switches on. Push #2,LED #1 and LED #3 switches on.push #3,LED #1&3 switches off and LED #2 (only) switches on.Push #4 all LEDs off.
A list of parts names will be appreciated as well as a possible pointing into the right direction with a diagram will be appreciated. Keep in mind that the switch and pcb must fit in a +- 1square inch unit (if possible)
Regards
Ring counter to 4. I would use a 4017 IC. See datasheet, you maybe find close example.
Or count to 3 and at 4th button press generate a reset. Reset state causes all Led off. U can use an IC with less pins than 4017.
For led combinations use a logic gates connected to outputs of 4017.
U didnt write, how you can switch from scenario 1 to 2.
Sourav Gupta
PermalinkCost of the circuit? use a microcontroller with 8 pin, for example PIC12F675, can easily programmed to do so.
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Joined February 12, 2018 696Monday at 02:11 PM