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Recent content by arivalagan13

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    [Moved]: LED for Vein Detector/Vein Finder(Using Power LED's)

    My project requirement is just to show the veins clearly so that the veins can be punctured for various purposes.Can you please elaborate on the requirement of the light detector?Could you please elaborate at it?Also whether a 0.5W LED suffice the purpose
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    [Moved]: LED for Vein Detector/Vein Finder(Using Power LED's)

    Hello all I am designing a Vein Detector/Vein Finder. I just want to know how do I choose the power LED's for the proposed application. That is, which color LED(mostly red is used..but why?), what is the wavelength and so on. Once it is fixed then I can go on designing the drivers and power...
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    Analog IC Fabrication through Foundaries

    Hello all, I'm from India. I'm much interested in the fabrication of an analog IC. There is no low cost fab in India. How do I make my IC get fabricated. Consider,for example, a Delta-Sigma A/D converter or even an OpAmp IC for that matter... what are the steps that I have to go through to get...
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    Current Measurement with ACS712-5A Sensor

    I used the one mentioned in the first link..Have you seen the link for my wiring? I connected the same way..But faced the above problem...I used the following code to interface with Arduino Uno.. int temp=0; float sum =0; float AMPS_SCALE =0; float amps=0; void setup() {...
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    Current Measurement with ACS712-5A Sensor

    ​Hi I am making an mppt charge controller. I stuck at using the acs712 current sensor. I connected a test load 1kilohm as per the schematics given in this link in https://i0.wp.com/henrysbench.capnfatz.com/wp-conte... 5 mA current is supposed to flow but i get 110 to 140mA in the serial...
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    [SOLVED] Polarity of TVS DIode

    Thanks a lot..
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    [SOLVED] Polarity of TVS DIode

    Hi all, I am in the process of designing an MPPT charger. In the course i am using a TVS diode P6KE36CA. I've purchased it but unable to identify its terminals. Can somebody tell me how to do it? Regards M Arivalagan
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    IR Phototransistor and phototransistors

    To answer you both: 1.First I tried with a photo transistor(part no.:L14G3) as IR receiver. Then I tried with a IR receiver( claimed by the vendor so). Probably it is a photo diode. 2.Audioguru, regarding Ur second point I get a similar response as I connected the way you suggested. Also it...
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    IR Phototransistor and phototransistors

    (1)I use the following circuit: IR LED in series with 100ohm resistor at transistor. IR detector with 10kiloohm resistor in reverse bias. I shouldnt get any output in the absence of IR and when the signal is present i should get a positive voltage.right? But, even in the absence of the IR am...
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    IR Phototransistor and phototransistors

    Hello all, Can I use L14G3 phototransistor to receive IR light from IR LED source? Is there special IR phototransistors? Regards Arivalagan M
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    M-band wavelet transform

    For my image processing project i need the matlab code for fractal feature vector based on m-band wavelet transform and energy feature vector based on m-band wavelet transform..can somebody provide code or support in this regard? Regards, M.Arivalagan
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    8051 Trainer kit Deisgn

    I want to use it for learning purpose..can you give me some idea for doing it using AVR microcontroller?
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    8051 Trainer kit Deisgn

    Thanks for the links..but they enter program using opcodes directly..but,my requirement is that i should enter only mnemonics(through keyboard,but no pc) and it should be converter into opcode directly
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    Converting 8051 Mnemonics to Opcode

    Hello all, I want to convert the 8051 mnemonics into its corresponding opcode. Can somebody provide with the program for doing that.. The motivation behind this is: Am designing a 8051 trainer kit for myself.. Am using one 8051 for converting the mnemonics into opcode..then the converted...
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    8051 Trainer kit Deisgn

    Thanks for your response.. But the link contains the RS232 interface.. My need is the following. I need a trainer kit for 8051 uC. Using keyboard I should enter mnemonics..it should be converted into opcode then it should be executed using uC. This type of trainer kits(not programmers) are...
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