Business Card PIC Programmer

Step 2 Parts

Part Value Description

C1 100uF/16 volt electrolytic capacitor
C2 22uF/16 volt tantalum capacitor
D1 8.2V zener diode
D2 5.1V zener diode
D3,4,5,6 1N4148 diode
Q1,2 BC547B transistor-npn
R1 10K resistor
R2 1.5K resistor
SV1 5 pin header pin header (or female pin header, you choose)
X1 DB9 female serial connector

Comments

[Music_Man608]

Hi there, forgive me but I'm new at electronics and I'm scratching the surface right now. Having said that, what is this used for? What is a PIC controller. What can you do with the device you built? Thanks very much and sorry for my lack of education.

[coolmike8789]

A microcontroller is a small, programmable device that can interface with switches, LEDs, USB, ect.

[shane11]

How would I go about making this a usb programmer.

Thanx in advance,
Shane

[dirkandterra]

You can take this JDM programmer and load a bootloader program into a PIC with USB capabilities. Wire up the USB and use the bootloader program to load programs to the PIC over USB

[nadav]

can i use a 2N2222 NPN transistor instead of the BC547B?

[joespicnictables]

X1 DB9 female serial connector C1 100uF/16 volt electrolytic capacitor C2 22uF/16 volt tantalum capacitor D3,4,5,6 1N4148 diode Q1,2 BC547B transistor-npn I couldnt find these.

[kill1234]

You can find them in your local electronics store.

[diskdevil]

Is there a pdf or graphic file availiable for home etch? I don't have any of the pcb layout softwares.

[Polymorph]

You can download a free version of Eagle PCB CAD and open the files.

Ask here about how to get Eagle to print only the layer you want:
http://groups.yahoo.com/group/Homebrew_PCBs

That's my group.

[joespicnictables]

Where did you get this stuff??? :)

[ian]

mouser.com

[joespicnictables]

thankX!

[paanz]

hai ian.. i've constructed your PIC programmer, but WinPic says "hardware xxx", its not working.. C2 SHOULD be tantalum?

[ian]

Yes, as far as I know, C2 MUST be tantalum. Did you try something else? It would be interesting to confirm if the circuit worked/didnt work with other caps. Have you made sure to: Check your transistor orientation? Check that your transistors have the same pin configuration as those used in the design? Setup WinPic to use the JDM2?

[paanz]

i just figured out that I have connect the transistor wrongly. Is it as the picture attached? In WinPic I only found JDM. Is it the same as JDM2?

[ian]

Take a look at Step #2.

This is the standard (typical?) BC547B pin-out. If you have problems with your finished circuit, make sure that your transistors have the same pin-out as shown in the schematic and reorient as needed.

[ian]

That didn't work so great: From Step #2: This is the standard (typical?) BC547B pin-out. If you have problems with your finished circuit, make sure that your transistors have the same pin-out as shown in the schematic and reorient as needed. Yes, JDM should work for the JDM2.

[paanz]

i think i need to check on the DB-9 RS-232 connection first..

the DB-9 at back of computer is male, i'm using female connector to my circuit.
the pin numbering layout from
http://www.zytrax.com/images/rs232_db9.gif is for DB-9 viewed from the pin at the back,of the connector hole in front?