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Recent content by ME

  1. M

    Dummy transistors - their role in a circuit

    Dummy transistors!!!!!!!!!!!! Read this: https://en.wikipedia.org/wiki/Current_mirror
  2. M

    Lowest Cost microcontroller

    In what quantities can you buy AT89c2051 for $0.5? I assume you mean USD? What qunatitites do you need to buy of this new MCU?
  3. M

    ELNEC'S SEEprog schematic

    seeprog usb SEEprog II schematics. PDF and Protel format.
  4. M

    How to program an eeprom sda2506 - need help

    sda2506 -5 You can use ELNEC's SEEprog https://www.elnec.com/products/device-programmers/seeprog Here's a DIY version of SEEprog with schematics and PCB layout files:
  5. M

    Lowest Cost microcontroller

    PIC16F616 is even cheaper than PIC16F676 and still fulfills the requirments of >= 10 I/O pins and >= 10-bit ADC: https://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en026028 But the Atmel AVR ATtiny24A I mentioned in my previous post is cheaper than Microchip PIC16F616 (based on Digikey...
  6. M

    what are capacitor values used with crystal oscillator 20Mhz

    modify crystal oscillator frequency Read these Ateml AVR application notes, especially AVR042 section 5: http://www.atmel.com/dyn/products/app_notes.asp?family_id=607 AVR040: EMC Design Considerations AVR042: AVR Hardware Design Considerations AVR186: Best practices for the PCB layout of...
  7. M

    Lowest Cost microcontroller

    microcontroller price $0.5 The cheapest AVR with >= 10 I/O-pins and 10-bit ADC is ATtiny24A: http://www.atmel.com/dyn/products/product_card.asp?part_id=4448 ATtiny24A is cheaper than AT89c2051 an they are both made by Atmel, so you shold be able to get them from the same distibutor. And AVR is...
  8. M

    Help me build AVR JTAG ICE MKII clone

    avr jtagice Arrow North America has a ½-price promotion offer on both AVR JTAGICE mkII and STK600 at the moment: http://www.arrownac.com/manufacturers/atmel/s/avr You can order online and and pay with credit card, even as a private person (but you have to fill out a company name when ordering...
  9. M

    [SOLVED] Comparing a generic PIC with an generic AVR

    xmega comparation microcontroller pic Atmel has recently released the 6-pin ATtiny10, which is pin compatible to PIC10F2xx. Atmel Takes Industry's Leading Position in 6-pin Microcontrollers: http://www.atmel.com/dyn/products/view_detail.asp?FileName=ATtiny10_4_15.html&family_id=607
  10. M

    ST STM32 versus Luminary micro LM3S ?

    stm32 luminary I don't know what process STM32 and the first generations of LM Stellaris use, but LM says the 4th generation Stellaris use 130nm: https://www.luminarymicro.com/products/stellaris_family_of__microcontrollers.html
  11. M

    What is the range for decoupling Capacitors?

    Decoupling capacitors Some reading about decoupling capacitors: http://en.wikipedia.org/wiki/Decoupling_capacitor http://www.interfacebus.com/Design_Capacitors.html **broken link removed** http://www.hottconsultants.com/techtips/decoupling.html **broken link removed**...
  12. M

    PC based Logic analyzer

    pc based logic analyzer I have read very good reviews of Saleae Logic introduced last year https://www.saleae.com 8-bit, but only USD 149 and various protocol analyzers like SPI, serial, I²C, and 1-Wire and more to come in the future, first on the list will be CAN, followed by others. Runs on...
  13. M

    connect mobile to microcontroler

    avr nokia phone connect serial port Tiny Planet: a planet-wide, wireless I/O port **broken link removed** Sony Ericsson AT Commands Online Reference **broken link removed** **broken link removed** Sony Eriscsson T68 AT Commands Online Reference **broken link removed** Send SMS using AT...
  14. M

    What is the x10 protocol and its application?

    protocol x10 **broken link removed** http://www.hometoys.com/htinews/feb99/articles/kingery/kingery13.htm http://www.x10.com
  15. M

    I want to teach avr in students?

    Here's some good AVR lessons: Cornell University ECE 476 Designing with Microcontrollers https://instruct1.cit.cornell.edu/courses/ee476/ For sample kit use Atmel AVR STK 500, it's cheap, feature rich and and they give discounts on STK500 for univeristy courses etc.

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