Re: [tuxdroid-user] Speech software suite: TTS & Recognition

[David B. <da...@ja...>]

On Sat, 24 Mar 2007 16:40:36 +0100, Florent THIERY <ft...@gm...>  
wrote:

>> There's 5 values for the PWM of the wings and the spinning. I think the
>> api already uses this but by default it's at maximum speed. 0 is  
>> stopped,
>> 1 is slow and 5 is maximum speed.
>
> Good news !!!
>
>> Though there are much chances 1 and
>> maybe 2 are too small values so the current won't be able to even start
>> the motor.
>
> Well, just suppress the support of the useless ones in the api
>
>> I think the daemon should control this and only provide the
>> speeds that make sense in the functions.
>
> In fact, i was thinking of linear speed modulation, so that the
> movements are less rough.
>
> 1 - 2 - 3 - 4 - 5 - 5 - 5 - 5 - 4 - 3 - 2 - 1

Well, movements look rough because I wanted to stop the movement on the  
switch. When the eyes are closed, they need to be stopped very quickly  
otherwise they reopen. So I had to do braking by reverting the motor fo a  
short time. The mouth is less critical as going a bit too far doesn't open  
the mouth sompletely but if we want the switch to have a correct meaning,  
it should be pushed so we again need to stop very fast. For the wings,  
there's maybe a slight braking but I'm not sure, and there's nothing for  
spinning.

So it should be possible to start more smoothly but stopping smoothly will  
be much more complex. That's to be inplemented in firmware anyway.