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Original PICKIT-2 microcontroller programmer

These days I was thinking about a better PIC programmer that can work with MicrochipMPLAB IDE software so that I can write my own programs or edit someone...

Circuit diagram
Tags: #microcontroller#pickit#programmer
Ibrar Ayyub By Ibrar Ayyub
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CategoryProgrammers & ICSP
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Summary of Original PICKIT-2 microcontroller programmer

The author designed a custom, single-sided PICkit 2 programmer compatible with Microchip MPLAB IDE. By modifying the original schematic to remove unused memory chips and connectors, they created a compact PCB using mostly SMD components. The device successfully programmed a PIC16F628A microcontroller without issues, offering a reliable alternative to existing versions.

Parts used in the Custom PICkit 2 Programmer:

  • MCP6001U
  • FDC6420C
  • PIC18F2550 microcontroller
  • SS14 diodes (replacing BAT54 and ZHCS1000)
  • SMD parts
  • Jumpers

These days I was thinking about a better PIC programmer that can work with MicrochipMPLAB IDE software so that I can write my own programs or edit someone else’s programs. I found that there are numerous versions of the famous Microchip PICkit 2 on the web.Original PICKIT-2 microcontroller programmer

Some of them are using the original schematic published by Microchip and some are lite versions – with different parts or simplified schematics. None of them satisfied my requirements. So I got the original schematic, removed the memory chips and the input ICSP connector (which I didn’t plan to use anyway) and made a new single sided PCB. I used mostly SMD parts.

Schematic

I found out that I can get all parts for the original schematic from local stores, and only two –MCP6001U and FDC6420C – I had to order from Farnel. I also decided to replace two Schottky diodes BAT54 and ZHCS1000 with SS14 because of more convenient package. I programmed the PIC18F2550 microcontroller with my Chinese programmer. Here is the schematic which I used:

In the end the schematic is not exactly like the original one but it is close enough I used the same notifications of the parts like in the original schematic.Original PICKIT-2 microcontroller programmer schematic

PCB

It is one sided and has only five jumpers. The size is comparatively small – 83mm x 52mm.

I don’t want to brag, but I think I made the best one sided PCB for PICkit 2 programmer. It also works without any hiccups. I tested it with an PIC16F628A which I have at hand. It was recognized in both PICkit 2 software and MPLAB IDE.

Here is the picture of the programmer connected to the breadboard with the PIC16F628A on it.

 

 

For more detail: Original PICKIT-2 microcontroller programmer

  • What software does this custom programmer work with?
    It works with Microchip MPLAB IDE software.
  • How many jumpers are on the PCB?
    The PCB has five jumpers.
  • Can I find all parts for the original schematic at local stores?
    No, two specific parts had to be ordered from Farnel.
  • Which diodes were replaced with SS14?
    BAT54 and ZHCS1000 Schottky diodes were replaced.
  • Does the new PCB use through-hole or surface mount technology?
    The design uses mostly SMD parts.
  • What is the size of the single-sided PCB?
    The size is 83mm x 52mm.
  • Did the author test the programmer with a specific microcontroller?
    Yes, it was tested with a PIC16F628A.
  • Why did the author remove the input ICSP connector?
    The author did not plan to use the input ICSP connector.
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Ibrar Ayyub

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough...