Help with servo
hi, first of all: sorry, my english is so bad. and I mean .. BAD.
I am a beginner, and I have some problems with servo controller! I fallowed "how to make your first robot" by fritsl (great fritsl..!!), except I used a srf05 not a ir sharp sensor device. (there's an other problem, I connected srf05 like http://letsmakerobots.com/node/66 but I can't insert a functionally command string in the fritsl's program that let it work, although it seems to work with the node 66's code)
I connected the servo using a standard servo connection (soldering an extra pin to output 0)
When I upload "servo 0, xxx" the servo does nothing. When I disconnect it from the picaxe 28x1 and than connect it again it takes a little turn. When I upload the program of the fristl guide the gear motors go on, but the servo turns on its right, than takes a pause.. than turns on its right again, and so on.. and so on.
I supposed that the problem is that I don't bought PICAXE servo upgrade pack and I haven't the "yellow chip", SO I LEFT THE DARLINGTON-DRIVER IN .. .. but I can't figurate out what the "yellow chip" is and I can't say its name to the electronic's shop! .. .. I don't understand what is the function of this yellow chip too..
could you help please? thanks all..
@ Wed, 2008-07-23 19:46
again with servos xD
Hi all..! I've tried to install the picaxe 28x1 on a remote controlled car. I've just set the motor of the back wheels and they work.but there's a problem with the servo that controls the frontwheels (and makes them turn)..
this servo has only TWO wires (not 3 like others) .. I've tried to connect it to ground and pin, and it take some voltage (it turn on the left, permanently).. but it doesn't respond to commands.. I've tried with a resistor... then a transistor.. but it doesn't work.. help please T_T thanks
@ Wed, 2008-07-23 20:25
So you are able to keep the
So you are able to keep the remote controll with the addition of the picaxe?
@ Wed, 2008-07-23 20:31
I will not apply r/c.. for
@ Wed, 2008-07-23 20:16
Are you sure it is a servo,
@ Wed, 2008-07-23 21:02
there are two wires, yellow
there are two wires, yellow and green...
when the G is on the ground, and the Y is on the pin, it turns on right
when the Y is on the ground, and the G is on the pin, it turns on left ... and the picaxe28 has no program on..
so how can I set and control this thing..? O_o
@ Wed, 2008-07-23 21:53
Actually it sounds like just
Actually it sounds like just a regular motor, i.e. a servo with no control electronics. Is the steering "all or nothing"? Or can you just touch the wires to the battery quickly and have it turn just a little bit? If it's "all or nothing" then it's a solenoid, and you should use a relay to control it the way Frits did in his Wallracers. If it can be turned just a little bit, then it's just a regular DC motor, and you'll need an H-bridge (or motor driver chip like the L293D or SN754410) to control it.
Dan
@ Wed, 2008-07-23 22:03
all or nothing.. so it's a
@ Wed, 2008-07-23 21:24
Sounds like a solenoid to
@ Wed, 2008-07-23 21:29
100% sure, it's a servo.. I
100% sure, it's a servo.. I will post a photo soon
edit: 50 % sure.. -_- ..
@ Fri, 2008-07-11 15:11
i guess it does!!! try F5ing
i guess it does!
check this out http://letsmakerobots.com/node/1313
you can stop it by writing servo 0, 150