Circuit to indicate 1 to 10 based on pressed switch

graphled

I am looking for a circuit which can turn ON/OFF 10 LEDs based on the switch pressed (push to ON, release to OFF). It is like an LED graph.

My requirement is:

- Initially no LED is ON.
- If switch 1 is pressed then LED 1 turns ON LEDs 2 to 10 turns OFF
- If switch 2 is pressed then LEDs 1 to 2 turns ON and LEDs 3 to 10 turns OFF
- If switch 5 is pressed then LEDs 1 to 5 turns ON and LEDs 6 to 10 turns OFF
- If switch 4 is pressed then LEDs 1 to 4 turns ON and LEDs 5 to 10 turns OFF
- If switch 3 is pressed then LEDs 1 to 3 turns ON and LEDs 4 to 10 turns OFF
and so on...

The components can be ICs or transistors, doesn't matter as long as this can be achieved. But no Arduino please. Should be simple.

Thanks

Update 1:
Forgot to mention that the state of the LEDs should be maintained even after switch is released unless other switch is pressed. I hope this makes sense.

Best Answer

Here is a sketch for my solution. This is just an abstraction, and but you can use your imagination to see how more channels are chained toward the bottom. Be sure to put some base resistance in there!

Not 100% sure this will work, but it's a place to start.

Edit: Fixed the schematic

schematic

simulate this circuit – Schematic created using CircuitLab

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