Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: Sigi424 on April 20, 2008, 11:58:33 AM

Title: ($50 Robot toturial) HOW TO MODIFY A SERVO - Problem
Post by: Sigi424 on April 20, 2008, 11:58:33 AM

Hello everyone,
I really want to build my own robot, so much. I started reading the $50 Robot Tutorial, but I found a problem.
I don't know anything about microcontrollers and stuff like that. I know just little bit from electronics.
When I was reading I found problem in part "HOW TO MODIFY A SERVO". The technical part is ok but when it come to the microcontroller I have no idea what to do. Can I modify the servo without the microcontroller? Or can someone help me how to connect it with servo??? How to do it??? Please. (I don't hane any parts yet, because I want to be sure that when I will buy everything that I will not have some big problem like this one with the servo.)
The best way will maybe be if someone who knows theese things can give me his/her ICQ or MSN or whatever where we can chat quickly.
Thank You Very much for help
Sigi

Title: Re: ($50 Robot toturial) HOW TO MODIFY A SERVO - Problem
Post by: Spoil9 on April 20, 2008, 02:16:09 PM

Sigi,
I had the same problem for the past couple months. I am the type of person who worries way to much about the small stuff so I was always hesitant to buy any parts to start my projects. Always looking for the best 'bang for my buck'
As posted elsewhere, you can order already modified servos from Lynxmotion's website. They are standard Hitec 422 servos and are only $12.99 each (the same price as the non-modified servo).
This will element the problem of not wanting to mod your servos (as I did not).

As for the microcontroller, someone else will have to help with that cause I still have not decided which MCU I am going to invest in.
Hope this helps a little.

Title: Re: ($50 Robot toturial) HOW TO MODIFY A SERVO - Problem
Post by: pomprocker on April 20, 2008, 03:20:51 PM

Well you really have to build the board first.

then upload the modify servo hex file

then you can modify your servos.

Title: Re: ($50 Robot toturial) HOW TO MODIFY A SERVO - Problem
Post by: Sigi424 on April 21, 2008, 12:29:30 PM

Ok. Thank You to both of you, first I think I will have to learn something about microcontrollers and then I can continue...  :)

Title: Re: ($50 Robot toturial) HOW TO MODIFY A SERVO - Problem
Post by: BFerguson on February 14, 2010, 08:28:11 PM

Not sure how lively this board is likely to be.
Pomprocker mentions uploading "the modify servo hex file". Can anyone tell me where this file might be? I have downloaded the source for the $50 photovore robot.

I see the servo_left and servo_right functions, but I don't see either of them called anywhere, nor do I see the file Sor_Utils.h imported or included anywhere.


I am new to microntoller programming (I am a software engineer, but haven't programmed even an EPROM since college, and that was a while ago).