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51
Electronics / Re: New Robot Builder here
« Last post by mklrobo on May 10, 2015, 12:57:39 AM »
 :) Hello! I would offer my opinion, where permissible..
Your first question;
Do you screw the servo arm on the wheel then push the wheel on the servo?  I'm confused because Ive seen some arms screwed on the servo.  If you screw the arm to the wheel, how do you screw the wheel/arm to the servo?  I'm just basically confused to how do you attach the wheel to the servo?
In reference to this, I could only offer generic info, based on the information
that you have presented. My first response would be, analyze the mechanical
load you expect to drive, then buy a generic servo already set up for your
purposes. This saves time, money, and logistics of repair/programming.
The second question;
9.6 volts at 2000 Mah }{ 5 - 12 volt required, do not drop below 5 volts.
Would this battery blow the board?  I also bought the Motor Shield.  I'm guessing the motors will be controlled there.  What do you think?  I was going to get a 6 V battery but I read that when it drops below 5V the board will stop working.  Since I've got a range im dealing with I picked the middle to give me some room.  So.... Would the above battery be good for this robot?
The Milli - Ampere hour level of the current, is a good battery, relative to the use
you have for it. Small, time limited robot programming uses will suit you, from your
description. 2 amps should provide you with what you need for now, depending on
the demand of your motors. If you use a MCU that demands a steady voltage, I would
use a regulator to feed that board. Try to use a seperate battery for the MCU, to avoid
spikes for the motor usage. (in reality, you could get by with no problem, but personal
property invokes tender loving care on robots. $$)
Good Luck!!    ;D ;D ;D

In addition, I will try to address your programming/motor issues and more in my post in the Miscellanous section, Analyzing the Axon series: Coding, Construction, and Contraptions.
52
Electronics / New Robot Builder here
« Last post by MichaelSchaap on May 09, 2015, 10:39:39 AM »
Hey all!  My name is Michael.  Ive got an electronics degree but for various reasons I never used it.  It's my birthday today and last week I decided to attempt to build the robot in the Building your first Robot section.  Parts are starting to come in.  2 things are bothering me.

1.  Ive got a servo picked out, though have not bought them yet.  I'm very confused with how to attach it to the two wheels.  I decided to not use cardboard for wheels.  Ive found some robot places that sell wheels that are designed to attach to the servos..... I'm almost just throwing up my arms and getting the set.  I did a search here which lead me to a few threads though I still don't get it.  Do you screw the servo arm on the wheel then push the wheel on the servo?  I'm confused because Ive seen some arms screwed on the servo.  If you screw the arm to the wheel, how do you screw the wheel/arm to the servo?  I'm just basically confused to how do you attach the wheel to the servo?

2.  Batteries.  I've read the specs of the Uno R3 board.  Voltage can be from 5 to 12 volts I believe.  Amazon has a RC battery that is rated at 9.6 volts.  What I'm concerned about is the current.  The battery is rated to produce 2000mAh.  Here is the link to the battery:

 http://www.amazon.com/dp/B001BA292A/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=24ZVCZNGHP7EP&coliid=I3D2V1640BDEGE

Would this battery blow the board?  I also bought the Motor Shield.  I'm guessing the motors will be controlled there.  What do you think?  I was going to get a 6 V battery but I read that when it drops below 5V the board will stop working.  Since I've got a range im dealing with I picked the middle to give me some room.  So.... Would the above battery be good for this robot?

Thanks in advance!

Michael
53
Mechanics and Construction / SERVO AMPLIFIER
« Last post by yssa22 on May 08, 2015, 07:04:41 PM »
HI GUYS!!

anyone has  a user manual of Servo Amplifier model no. SUA301A. Been searching through net, till now cant find one
please please..   ;D
54
Misc / Re: want a new robot tutorial?
« Last post by mklrobo on May 07, 2015, 07:04:37 PM »
 ;D Hello!
I have started a post that will try to cover every nut and bolt needed to build a robot, from the very begining. I hope I am successfull.  8)
55
Misc / Re: Analyzing the Axon series: Coding, Construction, and Contraptions
« Last post by mklrobo on May 07, 2015, 10:04:09 AM »
Axon series: Serial Data train assimilator
In my efforts to tokenize serial data by clock ticks of a processor,  ;)( Using a serial output from a basic stamp to a parallax propeller.) I tried to use the Sparkfun 3.3 Volt to 5 Volt level shifter. That did not work; :'( causes some kind of false triggering on the end feeding my basic stamp. SOoooo,  :P My back up plan is to use a operational amplifier as a window comparator, that WILL trigger when the input voltage is above the half voltage threshold, and will ground, when below the half voltage point. I have used this before to eliminate RF transients riding on the inputs. (small transients can trigger transistor logic.  :-X ) Can use this project for future projects requiring special serial input; will be able to decrypt any serial data train, hopefully.  ;D ;D ;D
56
Misc / Re: HGR Industrial Surplus - Used Industrial Robots/Parts
« Last post by mklrobo on May 06, 2015, 01:19:04 PM »
 8) cool!
I just love looking over the robots, they are so cool! I wish I could buy some to make an ED-209!  8)
I really learned a lot just by seeing your web page. Thanks.   ;D ;D
57
Misc / HGR Industrial Surplus - Used Industrial Robots/Parts
« Last post by PTD on May 06, 2015, 12:32:24 PM »
We currently have in stock 129 robotic items, from full industrial robots to parts, controllers, etc. that members of the forum may find useful.  You may follow this link for additional information: http://bit.ly/1P0UFEz
58
Software / Re: Arduino: How can I implement bluetooth control?
« Last post by Schlayer on May 06, 2015, 11:49:39 AM »
I actually already own 30 Arduino Projects For the Evil Genius as it was given to me as a birthday present recently, but it only details the use of the bluetooth shield, and in a very different application than what I am planning to use it for, not controlling any mobile hardware. I will look into that, thanks!
59
Software / Re: Arduino: How can I implement bluetooth control?
« Last post by mklrobo on May 06, 2015, 09:52:56 AM »
 ;) Hello!
I found a book on Amazon, called;
Raspberry Pi Projects for the Evil Genius
This has a project where you can connect the Bluetooth to control the
robot. There again, maybe more than you wanted, but the option available.
If you are like me, unless you have a specific use for the robot which would
make it remain untouched, you will probably use it for  something else.
Good Luck!   ;D ;D ;D
60
Misc / Re: Analyzing the Axon series: Coding, Construction, and Contraptions
« Last post by mklrobo on May 06, 2015, 08:44:36 AM »
Axon Series: What is this thing?
OK, so I downloaded the hyperterminal software required to view feedback from the Axon.
I have never had good luck with hyperterminal; always get hung up on the phone selection.
 :o  (No pun intended;) ) Anyway, just plugging away at the setup, in which, I am  sure it
is simple.  ;D
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