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Recent content by Alexander Prad

  1. A

    A Sensor under seat of chair.

    I will put a sensor directly under seat without any holes. QT110 can work thru 100mm surface ( see https://www.qprox.com/products/qtouch.php and **broken link removed**) And sure I will do tests using differents clothes and conditions during developing.
  2. A

    A Sensor under seat of chair.

    It can work but... 1. Not possible to make hole in seat for LDR (there must be a picture) 2. If somebody switch off a light in room there will be a sound ?
  3. A

    A Sensor under seat of chair.

    I decide to use QT113 capacitence IC. For strain it is need to build some good bridge and good amplifier. And I suppose it is not possible to find strain in my city :(. LDR - You mean Light Dependent Resistors ? Like this **broken link removed** ?
  4. A

    A Sensor under seat of chair.

    Thank You for links. There is 2 capacitence solutions - QT100 from Quantum ResearchGroup and AD7150 (Analog Devices). These chips are quite smart. Long-term changing of capacity (due to humidity or somth) has no influence to normal operating. Only quick changing of capacity has effect. (See...
  5. A

    A Sensor under seat of chair.

    This work is'nt so easy for me. I prefer to build some electronic instead of carpenter's work. Added after 24 minutes: Thank you Nick, your's help is useful for me.
  6. A

    A Sensor under seat of chair.

    Dhis devise is for my friend painter. He wants to paint a picture on the seat of chair. When somebody seats up on the chair it must to be a short audio-message (about 5 seconds). That is his conception. The chair is wooden and no possible to make drills in seat.
  7. A

    A Sensor under seat of chair.

    sensor switch using qt100 Hello All! I need to build a device like this: there is a chair whith wooden seat (no upholstery). When somebody sit down on this chair electronic devise must play a message. Please help me to find out a type or design of sensor to solve a problem. Thanks.
  8. A

    IAR C-SPY problem - how to fix it?

    Re: IAR C-SPY problem Yes, man, you are right! That was a problem - Targets should be Debug (but not Release)! But look at year of post beginning - 2003! Be more attentive! Thank you! Spasibo!
  9. A

    IAR C-SPY problem - how to fix it?

    Re: IAR C-SPY problem I do that already. No effect. :(
  10. A

    coding guidelines to be followed when writing c program

    Re: coding guidelines Hi! Here is a good book for you. Regards, Alexander
  11. A

    IAR C-SPY problem - how to fix it?

    IAR C-SPY problem Hi, All! Please help me! When i try to debug my program for ATtiny26 C-SPY writes "Warning[16]: Only assembler level debugging available" . How to fix it? Thanks. Regards, Alexander.
  12. A

    C program for converting 24-bit BIN to BCD format

    24bit to bcd Good man Epegic give me a good solution. here is it: void binaryToBCD(long unsigned binaryNumber) { unsigned char index; for (index=0; index<numberofDigits; index++) { if (binaryNumber!=0) { bcdNumber[index] = binaryNumber%10...
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    C program for converting 24-bit BIN to BCD format

    Hi! Anyone saw in web a c-program for converting 24-bit BIN to BCD format? Thank you. Alexander.
  14. A

    Different stand-alone MP3 decoder reference designs

    understanding mp3 martin ruckert Look at this producr from A*mel: http://www.atmel.com/dyn/products/product_card.asp?part_id=2598 All in one.
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    looking for a program c for pic

    Re: c for pic Take a look on www.iar.com. It's the best.
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