Test board for 18F4550 PIC

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A test board for PIC 18F4550 built by a friend.

Can be directly connected to a Labdec Breadboard to realize quick experiments.

General view

BREAD001.jpg

This is the V01 version of my development board from icsp port or USB bus (bootloader like).

Schematic

BREAD002.gif

This scheme is a direct application from Microchip's data sheets.

In the bootloader case, you must precisely use a 20 MHz quartz (isn't ? Smiley.gif).

The long connector on the bottom of the board allows the connection with a Labdec development breadboard.

PCB

BREAD003.gif

Component side.

The file Carte PIC 18F4550 V01.LYT (60 ko) has been developed with ARES from PROTEUS, 5.2 version. Those having this software will be able to modify the PCB.

For the others, as this is a 2 faces PCB, I have included the to sides in GIF files with the maximum resolution.

PCB

BREAD004.gif

Solder side.

Finished board

BREAD005.jpg

On the connector, you will find all the pins of the 18F4550, including the supply lines and the USB signals from the PC. Take care when using it.

The 4 leds on the right are optional for testing and can be omitted.

The push-button is for the reset of the PIC.

Use example of this board

BREAD006.jpg

Board test with an LCD module.

Actually, for the bootloader programming, I use a push-button and a resistor for the RB4 pin on the Labdec board.