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Hobbies Electronics Enthusiasts Club, All elect/robotics lovers! pls come!
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neoxz
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 Oct 3 2007, 12:25 PM
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QUOTE(Calcool77 @ Sep 10 2007, 07:23 PM) Hi...currently im doing IR transmitter and receiver circuit,well basically..transmitter had oredi done,jus tat my receiver got a bit problem,whenver my receiver detect IR signal from my transmitter,it only detected for 1 or 2 seconds,wonder wut going wrong??izzit frequency not correct??i use modulated receiver..which the output shud be either 1 or 0,i had changed several receiver but still get the same result..help pls!! Wat's ur frequency on ur 555 of ur transmitter? Try use 37-39 |
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BeastX
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Oct 3 2007, 01:21 PM
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tomy i-sobot to be realeased soon...about RM1k... resonably priced for a dozen or so servos..
Added on October 27, 2007, 12:31 pm17 servos to be exact (with 220 degress turn), comes with 3 rechargeble AA bateries for the bot and a charger that would take AA bateries as well.. The remotes uses 3 AA bateries  This post has been edited by BeastX: Oct 27 2007, 01:57 PM |
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The truth seeker
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Oct 27 2007, 12:41 PM
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New Member
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bumpy....bump...
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Wavelength
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Oct 31 2007, 03:56 PM
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New Member
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Hello guy any1 have any idea where I can buy a biometric fingerprint reader tried the Farnell and RS Components.I also call their customer hot line seem they don't have them.Any1 know a place that I can buy them from and how to contact them thnx...  |
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kerry
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Oct 31 2007, 09:17 PM
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I saw two fingerprint reader at Tmn Melawati Buy, Sell & Trade. Maybe you could look at used items shop.
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Wavelength
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Nov 1 2007, 07:46 PM
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New Member
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QUOTE(kerry @ Oct 31 2007, 09:17 PM) I saw two fingerprint reader at Tmn Melawati Buy, Sell & Trade. Maybe you could look at used items shop. Cool, will check it out this weekend. Anyway do u have an address or some landmark u you can point me to that place? |
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Bit
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Nov 7 2007, 09:27 PM
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Getting Started
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Anyone have the location map for Farnell Malaysia?
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kerry
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Nov 8 2007, 12:15 AM
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Bit
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Nov 17 2007, 11:57 PM
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Getting Started
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anyone here know where i can buy electrodes (for use in ECG) ? i need it to do my project.
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jasonkwk
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Nov 29 2007, 09:55 AM
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anyone know is it possible to convert a voltage transformer into a resistor divider circuit equivalent?
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medicontherun
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Jan 5 2008, 03:59 AM
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New Member
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lolz.. i never knew that this thread existed.. man now that i do.. hi all electronic enthusiasts q1 anyone know who has a pulse transformer or interested in helping me build one? |
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empire23
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Jan 7 2008, 07:41 AM
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Team Island Hopper
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QUOTE(jasonkwk @ Aug 9 2007, 11:57 PM) why the higher input impedance is better in amplifer? Because a high input Z means that it wont load the source behind it. QUOTE(jasonkwk @ Nov 29 2007, 09:55 AM) anyone know is it possible to convert a voltage transformer into a resistor divider circuit equivalent? lol, simple, just multitap the thing. |
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jsnkok
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Jan 13 2008, 06:20 PM
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hi.. need some help here ... what does PL1 marking on a PCB stands for ? it's a SMD 2-terminal device, much like a SMD capacitor but just not as thick.. and it's without any markings on the top ,, thanks |
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ar188
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Feb 13 2008, 07:16 PM
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QUOTE(spx @ Sep 19 2007, 04:36 PM) Anybody know where I can source for these potentiometers: - 25k log (25k A) - 250k linear (250k B) - 100k reverse log (100k C) I went to Jalan Pasar already but still couldn't find the 25k A and 100k C. They only have 250k B. Where can I get this Triple pole Double throw (3pdt) footswitch? Need this for true bypass switching purpose  Got 9 pins!!!
Added on September 19, 2007, 5:26 pmDo you know which shop in Jalan Pasar got sell flim type of capasitor? Asked most of the shops there already and they only have electrolytic type. I want to use the flim type capasitors for my signal path. What is the best capasitor type for signal path? try finding them in RS or farnell..or even from USA = www.digikey.com |
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Enferno
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Mar 2 2008, 12:30 AM
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QUOTE(ryansxs @ May 26 2007, 11:54 AM) I guess you mean Electrolytic capacitor and Ceramic capacitor. There is only one significant difference between these two capacitors. Electrolytic capacitor should be connected by considering its polarity (the +ve and -ve terminal) but for ceramic polarity is not important (means you can connect which way you want to connect also). For more info :- Try wiki Electrolytic capacitor actually there is some different .. well it's a about ESR,ESL. http://powerelectronics.com/mag/power_gett...mic_capacitors/Although tantalum and electrolytic cap is much much more expensive than a ceramic, but it do have it pros. just 2 cents |
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jasonkwk
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Mar 28 2008, 12:15 AM
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how to choose a good multimeter? budget below RM200.
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TSchowsc
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Apr 2 2008, 04:18 PM
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^^ go for branded ones like Sanwa (from Japan, and it will cost ya about +-RM250)
but this is for analog type tho... Digital ones might cost more...^^
This post has been edited by chowsc: Apr 2 2008, 04:19 PM
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fluotone
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Apr 8 2008, 12:00 PM
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I agree.. I'm using sanwa brands for a long time.. its been very reliable.. digital ones are quite accurate too |
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jasonkwk
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May 6 2008, 01:34 PM
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anyone know where can buy 8051 programmer in KL?
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SkywalkerxX
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May 27 2008, 12:51 PM
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not an active thread,sad..not many hobbyist in msia i think..
to burn 8051 use galep5,currently using this programmer in my company..but the cost around Rm4xx..my company pay,i dun care much about it..but the programmer can burn a wide range of MCU..
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