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Recent content by PaulHolland

  1. PaulHolland

    Modeling Printed IFA Antenna

    Tell me the steps to model a GP antenna for example and use optimizer to tune it automatically to its max performance.
  2. PaulHolland

    Modeling Printed IFA Antenna

    No problem. I would like to have a clear understanding of how to use the program. I know all about antenna's but not about this program. The video's they have on how to use it are very unclear and not made for new people.
  3. PaulHolland

    Modeling Printed IFA Antenna

    Hi, Who can give me some one-to-one PM support in using CST ?. I have a two frequency (900 - 1800MHz) antenna that I would like to model and optimize but I am new to CST.
  4. PaulHolland

    Low voltage low cost MCU

    Thanks for suggestion but I know this device. It only works from 0.9 - 1.9V not the 3.6V I asked. Its also a pricy device as I know, maybe you know to get it cheap ? Best option I have is the EM: EM6819F2-B006 I know there is a device from Korea/taiwan that is for sale in China but I can't...
  5. PaulHolland

    Low voltage low cost MCU

    AVR ATTINY43U. is almost 1.80 USD so not near the 0.40 USD I am looking for. and google did not give the answer I am looking for that is why I try here to dig some brains. - - - Updated - - - EM does have a device but cost is to high and I do not need 6 or 8K with EEPROM, ADC etc.... I need a...
  6. PaulHolland

    16f628 weired problem

    Did you put diodes parallel to the relay coils ???.. If not its the EMF that is killing your MCU.
  7. PaulHolland

    Low voltage low cost MCU

    I think you did not read my question !. I do know the whole PIC, AVR, Cypress, Freescale, Elan, Holtek, TI, Silab product range. I look for 0.8V operating voltage and cost below 0.40 USD @ 10K.
  8. PaulHolland

    Low voltage low cost MCU

    Hi, I am looking for a low cost small MCU with about 1K memory minimum 4 I/O lines and able to operate from 0.8V upto 3.6V minimum and using less than 20uA if in sleepmode. Must be able to wakeup by internal timer. I am looking for a PIC10F but than operating at 0.8V... Who knows ?.
  9. PaulHolland

    Who owns a Advantest R5361B or R5362 B Frequency Counter

    I am looking for some one who owns a R5361B or R5362B I am trying to repair one unit and I need some info ! Thanks in advance for helping me. Paul. !
  10. PaulHolland

    Help Simulating PIFA Antenna

    I do have a PIFA antenna on 0.8mm FR4 and since I do not have HFSS or like I can't simulate the performance, who can help me in this ?.
  11. PaulHolland

    Plastic enclosures from China

    Who has done business with http://www.china-enclosures.com any experiance would be fine.
  12. PaulHolland

    Battery Life Calculation

    This formula is a good estimator unless your current is very low ( > 500uA range). So with your 12mA you should be expecting some 60h of operation.
  13. PaulHolland

    Receive continuous data on UART in PIC18

    Hi Daniel M, No matter what people write (writing 16 bytes and than trying to read, means you FIFO is to small or you have to check more frequently) the code is very simple and fast AND Secure used in a proper way. The inputpointer normally counts from 0,1,2,3....15,0,1,2,3 you see it is going...
  14. PaulHolland

    Unmanned Aerial Vehicle Video Transmitter

    Ethernet domotica gateway Very nice study: **broken link removed**
  15. PaulHolland

    Detecting Fundamental Frequency From a Signal

    As FvM already told you have to use APF type of filters and they use a notch filter structure. FFT is not used for this. They are completely digital and track the fundamental signal and suppress this signal in the digital frequency domain. PLL's are not usefull for this, its possible but it...

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