RE: [Paparazzi-devel] Some questions!

[akochevar]

1.  Because we decode the PPM signal from the RF side of the RC receiver, PCM would not allow us to do this.

 

2.  The ADC, which for those who dont know stands for Analog to Digital Converter, is a 10 bit converter.  Thus, 2^10 = 1024.  We need both positive and negative for the IR, so the 1024 turns into +512 to -512.

 

AJ

> -------- Original Message --------
> Subject: [Paparazzi-devel] Some questions!
> From: Mohammad Ali Haji Pour <address@hidden>
> Date: Mon, May 12, 2008 2:50 am
> To: address@hidden
>
> Hi all,
>
> Sorry for the simple questions, but I am still way far in the field.
>
> 1. I was wondering why should we use PPM receivers, and not PCM?
>
> 2. And also I don't know the unit of the values that we get from the IR sensors. I think maximum is 512?
>
> Best Regards,
>
> Mohammad
>
>
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