Which brand is the best ??? I looking for automatic wire stripper
Hobbies Electronics Enthusiasts Club, All elect/robotics lovers! pls come!
Hobbies Electronics Enthusiasts Club, All elect/robotics lovers! pls come!
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May 30 2010, 11:08 PM
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Senior Member
2,892 posts Joined: Oct 2007 From: Penang |
Which brand is the best ??? I looking for automatic wire stripper
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May 31 2010, 12:13 PM
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Senior Member
1,022 posts Joined: Jan 2003 |
Can anyone direct me where to get a synchronous buck controller?
Converts input 12VDC to output 3.3VDC Thanks |
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May 31 2010, 06:54 PM
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Senior Member
630 posts Joined: Jan 2003 |
Erm, I'm not familiar with any brand though. But all are pretty standard. You can spot the quality almost immediately when you held it.
Buck controller can get at the famous Jalan Pasar, KL....!!!! |
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May 31 2010, 08:01 PM
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Junior Member
380 posts Joined: Feb 2010 From: house above a tree |
hi guys,I need help with the components here
http://www.redcircuits.com/Page31.htm do I really need to get these specific transistor? Q1____________BC239C 25V 100mA NPN High-gain Low-noise Transistor Q2____________BC337 45V 800mA NPN Transistor Q3____________BC327 45V 800mA PNP Transistor I think I got quite a few from secondary school days which I think is the c945 and c9013...can they be used? (I'll chck whether their NPN or PNP later xD..) there are BT66T too |
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May 31 2010, 08:03 PM
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Senior Member
1,022 posts Joined: Jan 2003 |
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Jun 5 2010, 12:41 PM
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Senior Member
2,892 posts Joined: Oct 2007 From: Penang |
Where got sell magnet wire ?
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Jun 5 2010, 01:27 PM
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Senior Member
1,136 posts Joined: Jan 2009 |
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Jun 6 2010, 10:46 AM
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Junior Member
205 posts Joined: Dec 2006 |
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Jun 6 2010, 10:54 AM
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Senior Member
2,892 posts Joined: Oct 2007 From: Penang |
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Jun 12 2010, 11:50 AM
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Junior Member
205 posts Joined: Dec 2006 |
Arduino Video Tutorial Part 2
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Jun 27 2010, 08:17 PM
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Senior Member
2,892 posts Joined: Oct 2007 From: Penang |
Which shop got sell Fluke more cheaper ??
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Aug 3 2010, 07:31 PM
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Junior Member
193 posts Joined: Aug 2007 From: 鸟不生蛋的地方 |
Hi guys,
anyone using voice chips? I'm facing some problem with the Winbond ISD4003 |
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Aug 3 2010, 11:08 PM
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Junior Member
9 posts Joined: Oct 2006 |
You can try CETM Electrotest Sdn Bhd. They r Fluke distributor n offer good discount. www.cetm.com.my
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Aug 19 2010, 10:44 AM
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Junior Member
205 posts Joined: Dec 2006 |
Finally theres a forum for Arduino users in Malaysia
Arduino Malaysia Forum http://forum.myduino.com All are vwelcome. |
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Aug 22 2010, 04:57 PM
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Junior Member
249 posts Joined: Mar 2010 |
QUOTE(TOROBO @ May 31 2010, 08:01 PM) hi guys,I need help with the components here you could substitute them with equivalent part, just make sure the power and voltage rating are sufficient. For the BC239C i'm not sure though, better check the datasheet.http://www.redcircuits.com/Page31.htm do I really need to get these specific transistor? Q1____________BC239C 25V 100mA NPN High-gain Low-noise Transistor Q2____________BC337 45V 800mA NPN Transistor Q3____________BC327 45V 800mA PNP Transistor I think I got quite a few from secondary school days which I think is the c945 and c9013...can they be used? (I'll chck whether their NPN or PNP later xD..) there are BT66T too |
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Aug 27 2010, 09:56 AM
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Senior Member
623 posts 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 |
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Aug 29 2010, 01:17 PM
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Junior Member
61 posts Joined: Oct 2006 |
just wanted to do an inquiry and get guidance from you!i am trying to write up a proposal for my FYP topic."RFID basedAsset Monitoring"..however i would like to build a reader operating at 13.56Mhz but with a reading range of 1m at the very least,from my research so far i have seen tht most readers at this range have close proximity reading range at tht frequency..I think i would have to build an antenna that would increase the range of my reading circuit..my part is mainly hardware of the project(programming microcontroller for the reader circuit and building it) and my partner will do the software part i.e databse part,,is this possible in your view and would it make a good final year project? project time is 6 months.. months...thanx
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Aug 30 2010, 06:19 AM
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Senior Member
939 posts Joined: Jan 2003 From: Penang |
QUOTE(simbyak @ Aug 29 2010, 01:17 PM) just wanted to do an inquiry and get guidance from you!i am trying to write up a proposal for my FYP topic."RFID basedAsset Monitoring"..however i would like to build a reader operating at 13.56Mhz but with a reading range of 1m at the very least,from my research so far i have seen tht most readers at this range have close proximity reading range at tht frequency..I think i would have to build an antenna that would increase the range of my reading circuit..my part is mainly hardware of the project(programming microcontroller for the reader circuit and building it) and my partner will do the software part i.e databse part,,is this possible in your view and would it make a good final year project? project time is 6 months.. months...thanx Hi,1. Is your RFID tag passive or active type? Passive meaning no internal power source. Passive usually only works in very short range. 2. I've worked with 27Mhz solutions in the past. 1.5meters is achievable, 3meters is about the limit, BUT this needs antenna design expertise and impedance match fine tuning. Will be very difficult for amateurs. I suggest you find ready made solutions, trying to design your own antenna will probably kill you. 3. Depending on the RF solution you have, you may have to write everything yourself, i.e. the RF MAC layer. That by itself should be enough for undergraduate FYP project. 4. I think your partner job is too easy compared to yours. |
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Aug 30 2010, 11:22 AM
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Junior Member
61 posts Joined: Oct 2006 |
QUOTE(tgrrr @ Aug 30 2010, 06:19 AM) Hi, Thnx tgrr,,really appreciate your advice.Well since i am using HF(13.56Mhz),the tag to be read is passive.However,i thinking of buying a reader module for HF and then my job will be to building an anetenna for it that can read to at least 1metre and interfacing the module with a PIC,..is this more feasible?1. Is your RFID tag passive or active type? Passive meaning no internal power source. Passive usually only works in very short range. 2. I've worked with 27Mhz solutions in the past. 1.5meters is achievable, 3meters is about the limit, BUT this needs antenna design expertise and impedance match fine tuning. Will be very difficult for amateurs. I suggest you find ready made solutions, trying to design your own antenna will probably kill you. 3. Depending on the RF solution you have, you may have to write everything yourself, i.e. the RF MAC layer. That by itself should be enough for undergraduate FYP project. 4. I think your partner job is too easy compared to yours. |
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Aug 30 2010, 12:10 PM
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Senior Member
939 posts Joined: Jan 2003 From: Penang |
You're saying for e.g. the RF reader module is design to work with 10cm range, and you wanna design your own antenna to make it 1meter?
I should think there's a practical limit to how much gain a passive antenna can get. There IS a formula for RF propagation distance. You SHOULD do the theoretical calculations first to determine how much antenna gain is needed. |
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