Content in “Servo”

Picaxe 28 and servo question.

JVIikk — Sun, 12 Oct 2008 06:20:12 -0400

Hi all :)

Im just getting started in robotics and just joined this forum. I got inspired by the great "start here" project you have here. I am starting with a similar project for my first robot, but I would like to make a few changes. Instead of using motors to drive the robot I plan on using servos modded for continuos rotation. The robot will have 4 servos. 2 for moving around, 1 for panning the head and the last one for either operating some sort of manipulator or panning the head up and down.

I have some questions though, which I hope you can help me with:

Continuous rotation servo broken.

abarax — Thu, 02 Oct 2008 20:08:29 -0400

I thought i'd make this post to help any beginners that also run into this problem, i wasted a good hour and a half on this, so hopefully no one else has to.

Providing more power

abarax — Mon, 29 Sep 2008 20:26:54 -0400

Ok, so i have my Arduino, 3 x servos and an ultrasonic range finder. Running all these at once from the 5v that the arduino provides is not supplying enough current (i think). I can run at maximum any two of these components from the 5v.

So i guess my solution is that i need to supply the servo's with their own separate power source.

If i hook up some AA batteries to the + wires of the servos connect the gnd to the gnd and the PWM wire to the arduino, will this work? How have other people dealt with this problem?

Servo Data

BaseOverApex — Sat, 20 Sep 2008 08:59:53 -0400

If you ever want to know how powerful your servo is, how much weight it wil llift, or if you know what you want but don't know which servo will provide it, this guy's list is extensive.

Cheap Servvos

Noobkiller — Tue, 09 Sep 2008 18:54:23 -0400

Can anyone recommend a website where a servo is inexpensive?

Arduino: How to make your first robot with..

fritsl — Mon, 08 Sep 2008 07:25:10 -0400

When writing this, LMR only offers "Start here" - instructions on how to make your first robot, using Picaxe.

"Nebster" wrote to me, and asked if I could do a parallel, using Arduino, and I think that is actually a very good idea (now that Picaxe refuses to pay me commission, haha)

Focus should be on making first timers get a robot up and running at a low cost, and most importantly learn how to hook up motors, a servo, and a analogue input in "no time".

Servo and picaxe: need resistor ?

Nicola — Sat, 06 Sep 2008 05:36:42 -0400

hello, i'm trying to use a servo with my picaxe. I tried it on Arduino before, and it worked just connecting the pins at the right position, without resistors.

now i just connected the same way on the picaxe, and it doesn't move.. I then remembered that in the "start here" project, a resistor was used.. So the question is: is it necessary? why do i need a resistor? and how do i wire it ?

Another thing that is probably messing up.. i have the darlington chip there.. shoud i remove it?

thanks :)

Linear Servos

wagoodman — Wed, 03 Sep 2008 20:17:08 -0400

hey, anyone know where i can find a linear servo or actuator that is capable of pushing a piano key down :) Thanks!

How to make your own servo

fritsl — Fri, 25 Jul 2008 07:25:13 -0400

(If Google video is down, video is here)

I like servos!

However, sometimes you want what a servo does, but you need one that is special: Very strong, very fast, takes more voltage, does not need a servo controller etc.. And you are not going to buy one for a trillion dollar and wait for it to arrive.. So you build it yourself :)

Arduino Servo Example / Arduino-Processing Interfacing

macdonag — Tue, 22 Jul 2008 04:23:14 -0400

Neat example of controlling a servo with Arduino. Using the servo library, it's not that complicated, plus the example also shows how to interface with Processing, allowing you to control the servo with your mouse.