Frequency Generator/Counter

The functional generator is a device that would have any better equipped electronic lab should have a cialis cost not so frequently used gadgets, but when you need it, we certainly appreciate its convenience. Here is the procedure of the scheme, which was published in the magazine Everyday Practical Electronics – 2000g – nr. 07. The heart of this device is 20 20mg cialis generic only pill an integrated circuit MAX038 precision function generator that is adjustable for a triangular, square, or sine wave signal. Frequency range is quite wide from 1Hz to 10MHz.

PIC16F877 microcontroller control circuit with five inputs/outputs which is essential for several functions. Used to switching capacitor to generate the frequency, 50 mg viagra retail price the  choice of waveform, frequency calculations and data display on the LCD. In preparing the pcb by PDF files that are attached, it is important to cheap viagra 25mg pay attention to a mistake that I made and is shown below. 

After programming the PIC and all the components have been soldiered, at first is checking the validity with no case, just naked electronics. There is a photo of  completed PCB with components associated with LCD display and potentiometer, power supply is brought “on the viagra prescription fill table” – just basic, raw test.

electronics - equipment - pcb The following is a photo of the tiles made ​​the procedure of toner transfer + etching. 

The LCD shows that everything is going according to plan. Nice to see that everything was planned is in right place. The next step is a process in which we will put in the housing, generic cialic vs cialis then follows the fun with tools for mechanical processing, drilling and CNC engraving job to the front panel. It is willingly arranged by my friend that owed ​​me the favour, I am only reminded him that I wouldn’t forbid the pleasure of his participating in this venture.

As for the hex file for the PIC, the layout for the PCB and buy cialis online in missouri other necessary files download here.

Here’s some pics to take look at:

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6 Responses

  1. Spyros says:

    I have already the article, but the layout for the pcb was missing, so thanks to you, the layout is here.

    Thanks a lot.

  2. Feko says:

    you’re welcome :)

  3. vladimir says:

    Management of one button, frequency span 0,1Hz-10MHz, sinusoidal, triangular, rectangular, independent adjustment of porosity, indication on LCD, external CCP and frequency modulation, non-volatile memory, the generator of the fluctuations shifted on 90 degrees,
    fluctuations of nonlinear distortions of 10Hz-10kHz factor less than 1 %, a phase shifting in a working range does not exceed 1 %.
    Management – PIC16F628. The program is written on the assembler.

  4. vladimir says:

    The multipurpose generator on MAX038 and PIC16F628
    The address:vladimiruasev@gmail.com

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