Author Topic: how to plug battery into Axon? # of servos?  (Read 2633 times)

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Offline hardmouseTopic starter

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how to plug battery into Axon? # of servos?
« on: December 18, 2010, 02:10:56 AM »
I don't quite understand your question, but you can control digital servos exactly how you control an analog servo . . .
No one can answer my question here. AXON support 18 servos? How to wire up the batteries? If not, forget it. Not going to use AXON...

Offline Ro-Bot-X

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how to plug battery into Axon? # of servos?
« Reply #1 on: December 18, 2010, 07:13:13 AM »
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Offline hardmouseTopic starter

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Re: how to plug battery into Axon? # of servos?
« Reply #3 on: December 18, 2010, 01:26:05 PM »
How to wire up the batteries?
step 2:
http://societyofrobots.com/axon/axon_getting_started_hardware.shtml
http://societyofrobots.com/axon2/axon2_setup2.shtml


So, one battery could handle all 18 servos? That will be pretty cool if AXON could manage such voltage. If not I might use second battery for servos. Is it possible to do?

Thanks for the help!

Offline rbtying

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Re: how to plug battery into Axon? # of servos?
« Reply #4 on: December 18, 2010, 02:11:13 PM »
The voltage is the same... You're wiring the servos in parallel - all your battery needs to do is to be able to handle the current draw.

Offline hardmouseTopic starter

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Re: how to plug battery into Axon? # of servos?
« Reply #5 on: December 18, 2010, 02:16:55 PM »
The voltage is the same... You're wiring the servos in parallel - all your battery needs to do is to be able to handle the current draw.
Any suggestions for what type of battery if I am using 18 servos?

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Re: how to plug battery into Axon? # of servos?
« Reply #6 on: December 18, 2010, 03:14:49 PM »
Any suggestions for what type of battery if I am using 18 servos?

What kind of servos?

For example, lets say you have 6V servos that use about 0.5A. That means your battery needs to output 6V at 9A (18x0.5 = 9).

You can also use two smaller/weaker batteries in parallel on the Axon for 2x the current.

Offline hardmouseTopic starter

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Re: how to plug battery into Axon? # of servos?
« Reply #7 on: December 19, 2010, 12:18:39 AM »
Any suggestions for what type of battery if I am using 18 servos?

What kind of servos?

For example, lets say you have 6V servos that use about 0.5A. That means your battery needs to output 6V at 9A (18x0.5 = 9).

You can also use two smaller/weaker batteries in parallel on the Axon for 2x the current.

Great~ Good to know and thank you.
I have digital HS-5645MG and 645MG servos. So, I have two 7.4V li-po 2800mAh batteries in parallel and that should do the work right?

Offline rbtying

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Re: how to plug battery into Axon? # of servos?
« Reply #8 on: December 19, 2010, 12:41:02 AM »
You will want to regulate the 7.4v LiPo voltage to a more reasonable five or six volts - a switching regulator (RC BECs work well) would be fine.  Servos tend to not like getting extra voltage - you might burn something out, and these aren't cheap $10.00 servos either.  Other than that, it'll be good.

Offline hardmouseTopic starter

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Re: how to plug battery into Axon? # of servos?
« Reply #9 on: December 19, 2010, 09:40:10 AM »
You will want to regulate the 7.4v LiPo voltage to a more reasonable five or six volts - a switching regulator (RC BECs work well) would be fine.  Servos tend to not like getting extra voltage - you might burn something out, and these aren't cheap $10.00 servos either.  Other than that, it'll be good.
Yap, I do have a switch regulator to reduce volt down to 6V. I have burned 3 servos to learn that while ago. :(

 

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