[TriEmbed] Raspi, Python and PWM

Rodney Radford ncgadgetry at gmail.com
Wed Sep 9 20:21:51 CDT 2015


I use servo blaster for generating pwms on the Raspberry pi.

It sets up a linked list dma structure to automatically generate pwm
signals with no cpu intervention and can control over 20 servos with easy
control from python, C and via the command line.

There is a kernel driver and user daemon. I prefer the daemon as it is not
kernel version dependent.
On Sep 9, 2015 9:08 PM, "John Rock via TriEmbed" <triembed at triembed.org>
wrote:

> I’ve been working through the Adafruit tutorials for the Raspi.
>
>
>
> Tutorial #8 is about driving a servo off the Raspi PWM pin #18.
>
>
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> I have supposedly installed the Occidentalis extensions to Raspian, which
> looked like it completed successfully.
>
>
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> I am not able to access the folder structure in the code in the tutorial.
>
>
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> Anyone out there a Python / Linux / PWM expert that has been able to
> control a servo from the Raspi PWM pin #18?
>
>
>
> John Rock
>
>
>
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