AVR Servo 01

[SWIPChina]

oh  cool hehe see my vedio.. welcome

[tonignostico]

scusa posso farti una domanda.....vanno bene questi servi? devo montarli

su un elicottero classse 50 raptor, mi fai sapere, grazie anticipatamente....

[philbx1]

@tonignostico

No, non mi fiderei di questi servi su qualche cosa che potesse lasciare la terra! 

[Shaunakde]

I bought an unbranded servo off the streets. Will it be safe to assume that it has a center pulse of 1.5ms?

[philbx1]

@Shaunakde

Hey, thanks for the question, but I have only ever looked at 1 type of servo - the ones on my video.

You can probably assume that an RC servo's center pulse will be 1.5ms though. Ref. wikipedia Servomechanism

[Shaunakde]

@philbx1 Thanks for the reply. I will do some testing and post back!

[whitedemon30]

wHATS a servo?

[philbx1]

@whitedemon30

Well, If you can watch a youtube video I assume you know of Google.

Don't want to elaborate any more as I'd get carried away and sound like I was disparaging an innocent comment like this. Please do look it up...

[edrZero]

Hi, I'm trying to drive this servos (MG995) with a PIC18F2550 using the usb, but i can't make them move, i used the same pwm to drive standard servos, can you tell me what pwm did you use?

[philbx1]

If the USB is supplying power to the servos then it might not be enough. Note the UBEC to the left of the proto board regulating power from the the battery. Also, as yanava mentions below you may also need to change the duration of the pulse (most likely longer).

[ShahAli2]

I wanted to know if you knew anything about Dead Bandwidth. I am using this servo for a project of mine and according to TowerPro there is a 10us Dead Bandwidth. I have no clue what it is and was hoping you could explain it to me

[yanava]

probably means that anything below or equal to a 10us increase (or a decrease) in PWM duty cycle will not affect the position.

This means that if you want to promote any rotation at all, you will need to increase (or decrease) the PWM active time by more than 10us.

That's how I face it in my project, maybe I'm wrong, but makes perfect sense to me. That's been working for me so far.

I'll take a look at my board with the scope and see if I can come up with a better response.

[maurieer]

Great sync on those servos.

Must`ve been your line of work.

Maybe a hobby?

[philbx1]

Hey, thanks for commenting maurieer.

And it is a hobby (for now), and although I work mostly doing programming I'm trying to get into electronics/hardware more.