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Hobbies Electronics Enthusiasts Club, All elect/robotics lovers! pls come!

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stan001
post Aug 27 2010, 09:56 AM

On my way
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Senior Member
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Joined: Jan 2003
From: Kuala Lumpur



I found this Arduino a very interesting microcontroller board especially for non-electronics students and electronics professionals... ( I totally hated those complex electronics formulas ).

Read thru a few of the e-books on Arduino and it is very suitable for programmers ( those with basic C programming ) and want to interface with the real world .. using the power of software programming and hardware interfaces to do "human - machine interactions"...

Where can I purchase an Arduino board here in Malaysia or Klang Valley ?

Pls PM me...

Thanks


stan001
post Sep 5 2010, 06:33 PM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



QUOTE(azmax100 @ Aug 19 2010, 10:44 AM)
Finally theres a forum for  Arduino users in Malaysia

Arduino Malaysia Forum
http://forum.myduino.com

All are vwelcome.
*
Just placed an order & payment for a Arduino Duemilanove 328 to your site..

Stanley


Added on September 5, 2010, 6:48 pm
QUOTE(mywii @ Sep 2 2010, 03:45 PM)
need help guys....

I am not very technical in this....so here goes---- in a circuit how do I lower the 5V output to a 3V input..I am trying to use the USB from a PC which I was told is 5V, to light up few LEDs....I think the LED is 3V .

I was told to use a resistor to bring down the voltage. Any particular resistor if I were to ask at Jalan Pasar?

Thanks.
*
Use this calculator ..

http://ledz.com/?p=zz.led.resistor.calculator

The USB current is around 100mA to 500mA...

Buy more range of resistors to be able to adjust the brightness of the LED...




This post has been edited by stan001: Sep 5 2010, 06:48 PM
stan001
post Sep 8 2010, 05:43 PM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



QUOTE(azmax100 @ Sep 8 2010, 04:07 PM)
Hi stan001 thanks for the order. Send it already. by the time I'm typing this you should
already receive it.

Anybody need Teensy++  drool.gif
*
Dear Azmax,

I was away yesterday, came back today, check my mailbox and the Pos Ekspres package Arduino board was there.. just d/l the IDE and tested it... everything is working fine...

Thanks

What is Teensy++ ???

Stanley

stan001
post Oct 7 2010, 11:43 AM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



Good comparision... I never used other microcontrollers before but I know it is pretty difficult to program and only ppl in this industry ( non hobbyist ) know how to do it bcos it is their job... and it is usually program to do a specific task without much re-programming to the MCU.

I read about the trend of IC going to 3.3V from 5V, is that due to the low power devices ?

The MSP430 code remind me of doing assembly lang... very efficient and talk to the h/w directly but so so difficult to read and understand the codes.. must think like a machine instead of a human... haha

I think Arduino open up a whole new market and communities of hobbyist and fashion designer ( very little programming or electronic knowledge ) to use the microcontroller with minimal barrier to entry nd learning curve..

Hope to see more people picking up Arduino and we can have a large community of suppliers, designers, hobbyist and useful products made out of Arduino


Added on October 7, 2010, 1:08 pmAnyone know which shop does sell mini breadboard in Jalan Pasar ?

I lot of them sells the regular size but I am looking for a half size breadboard..

Thanks


This post has been edited by stan001: Oct 7 2010, 01:08 PM
stan001
post Oct 15 2010, 01:18 AM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



I'm not into robotics but a lot of hobbyist use Arduino as the brain of the simple robot to control the motors, servos, install sensors to track distance, light or perhaps have wireless RF / Bluebooth / Xbee to send and receive signals from the robot..

Do checkout http://www.homebrew-tech.com/ as they might actually have stocks for Arduino or some motors & sensors to get started..

The programming codes are very C like..

If you know electronics, you can buy the parts and wire it up yrself or if you are not into DIY, you can just buy the functional shield ( module on top of the Arduino ) and mount it to the robot..

I wrote a blog for Arduino beginners, ppl like little or no knowledge in electronics too : http://arduino-for-beginners.blogspot.com/


stan001
post Oct 28 2010, 12:23 AM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



QUOTE(gvr @ Oct 26 2010, 11:08 PM)
Hi guys, Im new here..juz a quick question
is there any portable 24V power supply?? cos i nid it to drive the motors of my robot...
*
Portable power supply == battery ??


stan001
post Oct 29 2010, 05:05 PM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



50% Off Crazy Sale..

http://www.cytron.com.my/index.php

You have 7 hours from this posting... some stuff are cheap, some are okay price only...




stan001
post Dec 12 2010, 07:10 PM

On my way
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Senior Member
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From: Kuala Lumpur



What do you want to use it for ?

stan001
post Feb 26 2011, 03:56 PM

On my way
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Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



I plan to make a probe for soundcard oscilloscope like below ...

http://www.ledametrix.com/oscope/index.html

Anyone tried this before and care to give some advise or other ways to do it ??




stan001
post Feb 26 2011, 11:31 PM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



Yes, hehe, just feel like messing around with a software based before buying an actual DSO...

Will use a spare PCI sound-card instead of the on-board sound-card...


stan001
post May 17 2011, 02:08 AM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



We "buy" or "sell" Arduino is to support the original/creator of Arduino that give us such a wonderful open source hardware prototyping platform...

Without such support, there would be no innovative and "free" & "open source" product out there....

If you are new to electronics, I suggest you get the Arduino UNO board and save all the hassle of getting all the components, crystals, FTDI BoB, power supply...etc...etc..

Just download the Arduino IDE s/w , write yr program and upload to the Arduino.. it was made to get newbie started in less than 10 minutes...




stan001
post Aug 26 2011, 03:59 PM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



I found this SolarPump quite interesting and I would like to built a miniature copy of it..

http://soldesignlab.com/projects/solar/sol...tion/index.html

I found the below two Solar retailers that sells Solar Panels, batteries and accessories..

http://solarpower-mart.com/home
http://www.solarvoltaic.com/


Anyone that have done solar stuff care to give some comments, advise or feedback on the types of PV and batteries to use in my project..

Thanks



stan001
post Nov 19 2011, 04:45 PM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



Join the fb group on my links, ask yr Q there..


stan001
post Dec 7 2011, 01:26 AM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



2A is the max amp the power supply can provide.. it will depend on the circuit to draw the power..

Use a multimeter set to ammeter in series to measure the current being drawn by the circuit...

read the below link :-
http://www.allaboutcircuits.com/vol_6/chpt_2/4.html


stan001
post Mar 20 2012, 11:50 AM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



QUOTE(cubex @ Mar 20 2012, 11:36 AM)
where to find Triac or SCR? Sabah so hard to find
Im doing a buzzer game system
*
Nowdays, even in West Malaysia, we also purchase things from online retailers..

Browser thru them one by one...

http://www.escol.com.my/
http://www.kitzone.com.my/
http://www.cytron.com.my/
http://my.element14.com/
http://malaysia.rs-online.com/
http://www.bizchip-components.com/shop/index.php
http://www.ezdiip.com.my/


stan001
post Apr 19 2012, 06:45 AM

On my way
****
Senior Member
623 posts

Joined: Jan 2003
From: Kuala Lumpur



QUOTE(FLampard @ Apr 18 2012, 12:14 PM)
hi i am completely new to Electronics i need to create a motor circuit that will have a 10 sec delay before the motor starts running when the circuit is close.

i tried to do some google on this and it says a 555 IC and RC circuit will do the job , some says 555 is not needed. but im totally new and i dun understand the sample circuit.

is it really as easy as putting a resistor and capacitor on a series circuit ? using the formula T = R * C to calculate the time delay?

*
The web results can be quite confusing at times.. for beginners... and some circuit could be wrong or wrongly drawn...

The 555 seems like an easier solution...

I'm no expert but I really suggest that you post the same questions to electronic forums like :-

http://www.eevblog.com/forum/beginners/

There r lots of friendly electronics experts there that can help you with yr problems BUT remember to post as much details as possible and reply to questions they ask you...

motor type, what is the voltage, is it AC or DC... what does the circuit do...


 

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