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how to make a backup beeper with a pitop

 a can someone please help?


im trying to make a backup beeper with lights


it would have a ultrasonic rangefinder, and if you got closer, a beeper would go 


beep, beep, beep, beep,      and show a yellow led


if you got even closer, abeeper would go


beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeep, and show a red led


if you were far enough away, it would go silent, and show a green led.


please, help.


(also on a pi-topPROTO+)

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