RoboSavvy Forum

New user KH1

2006-12-21T15:02:33+01:00

Hello

L,H are used when you have something that isn't a servo and what to set the out put to either high 5V or low 0V. you can use this for setting LEDS on and off in a route.

SET1 I could remember of the top of my head but I think they do something similar.

bren

Statistics: Posted by Robo1 — Thu Dec 21, 2006 3:02 pm

New user KH1

2006-12-21T14:42:52+01:00

Noob for KHR-1 here. I just found that for the mode settings of servos, there are PWM,FREE,SET1,SET2,SET3,L, H.
The PWM and Free i know wats the usage.
But for SET1, SET2, SET3, L, H i cant figure it out. The manual do have much explaination on that, so need some help here.
Thanks.

Statistics: Posted by biz — Thu Dec 21, 2006 2:42 pm

Hi Meltdown

2006-11-25T09:26:41+01:00

Can I use any other Bluetooth Adapter, since I have purchased one with different specifications.
Thanks.

Statistics: Posted by ryann2k1 — Sat Nov 25, 2006 9:26 am

New user KH1

2006-11-24T17:09:57+01:00

I'm sorry, I fogotten KHR1 use a RS232 Cable (which already convert the bipolar signal to RZ signal)

I think the method of Meltdown is to use the original RS232 cable provided by Kondo (in KHR1) and then connected it to the Wireless RS232 bluetooth module.
And so, finally, there is 3 things.
2 RS232 bluetooth modules and 1 RS232 Cable.

In my case, I have a KHR2, It is a USB connector (which finally give 0V and 5V to KHR2 at the servo socket end)

so, any idea, Meltdown, for this USB to RS232 stick,

any wireless module can directly give the final signal to KHR2?

or I should purchase a Kondo RS232 cable and then back to your configuration then?

any idea

Statistics: Posted by Ray — Fri Nov 24, 2006 5:09 pm

Thanks Ray and Meltdown

2006-11-24T04:56:51+01:00

Thanks for your contribution. I will try those stuffs working on my KHR1.

Statistics: Posted by ryann2k1 — Fri Nov 24, 2006 4:56 am

New user KH1

2006-11-23T02:36:05+01:00

Bluetooth cracked.
Works great

http://robosavvy.com/modules.php?name=F ... highlight=

Statistics: Posted by Meltdown — Thu Nov 23, 2006 2:36 am

New user KH1

2006-11-22T09:42:29+01:00

well, DB-9 cannot be used.

DB-9 use bipolar non-return to zero signal, i.e. around +10V and -10V,

but KHR1 & KHR2 use return to zero signal, i.e. 0V and 5V only.

You should buy bluetooth that give RZ signal.

I personally not yet use bluetooth.

Statistics: Posted by Ray — Wed Nov 22, 2006 9:42 am

Thank you Ray

2006-11-22T02:17:56+01:00

So there is no problem with the robot then.
Instead of using RCB commander, have you tested the wireless communication with a bluetooth USB adapter ? I am planning to use serial port(DB-9) to usb converter so it can match with my bluetooth USB adapter.Have any idea?

Statistics: Posted by ryann2k1 — Wed Nov 22, 2006 2:17 am

New user KH1

2006-11-21T11:40:56+01:00

It is normal,

the servo is driven by power switching.
that means, the motors are controlled by Pulse width modulated pulse.
This type of switching introduce noise over 10kHz in the motor coil and so you can hear.

The advantage of this driving method is that the heat lost used to control the motor is minimized. and hence the heat sink can be reduced or even absent in this type of small power control.

If you are interest, you can read book about Power Electronics.

Well, another reason is due to the latch in the gear. For a fixed servo position, the gear can actually move a bit around its position. This cause an inaccuracy in the digital feedback system and such cause a effect called "limit cycle oscillation"

Statistics: Posted by Ray — Tue Nov 21, 2006 11:40 am

Thanks Ray and robosavvy

2006-11-21T02:03:53+01:00

It's good to have your quick responds.I also want to ask about the noisy sound produced when the robot is on. Is that normal to be happened?
Thank you

Statistics: Posted by ryann2k1 — Tue Nov 21, 2006 2:03 am

New user KH1

2006-11-18T04:23:55+01:00

Hi ryann2k1,

You may not need to write embedded code to reach your objectives with the KHR-1. There are a couple of libraries for RCB-1 serial communications. See this link and also browse this forum back in time, you will find a lot of information about programming the KHR-1.

Statistics: Posted by robosavvy — Sat Nov 18, 2006 4:23 am

New user KH1

2006-11-17T15:51:50+01:00

Hi,

KHR1 is not a language based controller, it is composed of and programmed with, pose by pose motion.

If you need C++ etc, you need to make your own controller

The controller for Hitec Robonova-I use Basic language, but its rather primitive!

The Bioloid use C as its controller language but, its a pitty that he do not contain robot gyro, which I think, is very important. Because it stabilize the robot during fast motion, e.g. fast walking.....

Statistics: Posted by Ray — Fri Nov 17, 2006 3:51 pm

New user KH1

2006-11-17T11:14:48+01:00

I have purchased a KHR1 robot and plan to use c++.
How to build our own program with the original board KH1. Hopefully anyhone can give any solutions.Thanks

Statistics: Posted by ryann2k1 — Fri Nov 17, 2006 11:14 am