Arduino Nano Questions

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1

Hey everybody, I'm totally new to this forum (and to arduino products for that matter) and I just have a few questions regarding the Nano.

  1. is it possible to have the Nano mirror a PWM input to one of its PWM outputs? The signal to my dodge ram dome light (dimmed via PWM) i would like to mirror to some foot well lights I installed. I will be adding more control in the future, but for now, just simple mirroring would suffice.

  2. is it possible to drive/control 2 outputs simultaneously? the same Nano that would be controlling the foot well lights, I would like to also control my under body lights. I would also like my underbody lights to be dimmed via PWM. The underbody lights would be using a different set of inputs for control, however, and not the aforementioned PWM input.

Here is a basic block diagram of the I/O's...

[dome light PWM input]                [             ]       [foot well lights PWM output]
                           ---->      [             ]         ---->
[underbody control input1]            [             ]       [underbody lights PWM output]
                           ---->      [    NANO     ]         ---->
[underbody control input2]            [             ]
                           ---->      [             ]
[underbody control input3]            [             ]
                           ---->      [             ]

So, I guess I'm asking, is the Nano is going to work for this situation?

2

The Nano has same chip as Uno, so 6 separate PWM outputs available.

The pulseIn() function can be used to measure pulse widths (high or low pulses), and thus read incoming PWM,
so yes your setup is doable.

3

awesome, thanks for the reply!