This is a serial programmer works on the RS232 ( PC serial port ), known as JDM Programmer, thanks to the site http://pic16f84.hit.bg/ which contains the schematic and the programmer software.
The programmer is powered from the Serial port itself, so there's no need to any external power supply.
But be careful this circuit will not work with the Laptop Serial port due to the weak voltages it has.
- I have used a very nice programmer software called "Win PIC Programmer" you can download it from
http://freenet-homepage.de/dl4yhf/winpicpr.html, it's very stable and powerful.
The project has been tested with the following IC's :
Step 1: The Schematic
Step 2: The PCB
You will see two files :
PCB.pdf and PCB_copper_pour.pdf
the second one has a "mass copper pour" to save your etching solution and to speed up the etching process without affecting your tracks.
- I used the Toner Transfer method draw the tracks, i can say the output is nice. I have included the steps required to make PCB in the following steps.
Step 3: Toner Still on the PCB
Step 4: Etching
Be careful it's a toxic material don't do this step in your kitchen.
Actually i did, but my wife wasn't there :)
Step 5: Final PCB
Step 6: Soldering
Note the brown wire, i have made a mistake when routing the PCB in WinQCad, don't worry it's corrected in the attached pdf files.
Notice the drawings on the component side, it's a guide when placing the components in case it's a big project :-)