Daisy chaining

Discussions regarding building a walking robot at home. Most of the robots participating at Robo-One competitions are custom fabricated.
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3 postsPage 1 of 1

Daisy chaining

Post by kanabalize » Thu May 15, 2008 11:37 am

Post by kanabalize
Thu May 15, 2008 11:37 am

How do i daisy chain the servos

what is the pros and cons of doing it?
How do i daisy chain the servos

what is the pros and cons of doing it?
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Re: Daisy chaining

Post by ayu » Thu May 15, 2008 12:43 pm

Post by ayu
Thu May 15, 2008 12:43 pm

16 channel serial servo controller for robotic applications
http://www.seattlerobotics.org/encoder/ ... csscnt.htm

Project's software /MCU_SRC/16CSSCNT.ASM
files.
http://www.seattlerobotics.org/encoder/ ... csscnt.zip

As I konw its daisy chain the servos.
16 channel serial servo controller for robotic applications
http://www.seattlerobotics.org/encoder/ ... csscnt.htm

Project's software /MCU_SRC/16CSSCNT.ASM
files.
http://www.seattlerobotics.org/encoder/ ... csscnt.zip

As I konw its daisy chain the servos.
Last edited by ayu on Thu May 15, 2008 3:39 pm, edited 1 time in total.
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Post by StuartL » Thu May 15, 2008 3:34 pm

Post by StuartL
Thu May 15, 2008 3:34 pm

"Normal" servos are not designed to be daisy chained, although there are some specialised servos specifically designed for this purpose. Good examples are the Hi-Tec robot servo (used in the RoboNova) and the Robotis servos (a huge selection with lots of feedback capabilities).

However just because normal servos can't be daisy chained it doesn't mean they're useless. It would be trivial to build a small piece of electronics that sits on a daisy-chained bus and controls 1-4 (or even more) servos based upon bus commands.

It just depends on how much you want to do. If you want something off the shelf you can't do much better than the Robotis servos. Their expensive servos are amazing, but of course expensive. Their entry level servo (the AX-12+) is comparable to the HiTec servo, slightly cheaper and with better feedback. It natively supports a 1Mbit TTL level half-duplex bus which is perfectly adequate for domestic purposes.
"Normal" servos are not designed to be daisy chained, although there are some specialised servos specifically designed for this purpose. Good examples are the Hi-Tec robot servo (used in the RoboNova) and the Robotis servos (a huge selection with lots of feedback capabilities).

However just because normal servos can't be daisy chained it doesn't mean they're useless. It would be trivial to build a small piece of electronics that sits on a daisy-chained bus and controls 1-4 (or even more) servos based upon bus commands.

It just depends on how much you want to do. If you want something off the shelf you can't do much better than the Robotis servos. Their expensive servos are amazing, but of course expensive. Their entry level servo (the AX-12+) is comparable to the HiTec servo, slightly cheaper and with better feedback. It natively supports a 1Mbit TTL level half-duplex bus which is perfectly adequate for domestic purposes.
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