PIC developement board

[MrDEB]

been hacking at this revising the design etc. Have one working (1 revision) in hand, BeBe has revision 2.
Here is the DIPTRACE files for revision 3
This board takes a 40 pin PIC
2-PWM ports
2-ADC/servo ports
2- HIGH to LOW push button inputs
4-user selectable LED Port indicators (will indicate either HIGH or LOW)
will accept a TAP-28 daughter board (headers are 1.5" spacing)
a user selectable switch to select program mode or TX/RX mode (has LED indicator)
Files are compressed DIPTRACE. Hopefully this is helpful to someone who wants a DIY prototype board.
SURE electronics has a great price on headers

 

[DevilMKD]

here it is something that i have trying to make
its a 16F887 based development board it has
8x I/O pins
RS232 comunication
LCD display
3x LED 7 seg. display
4x relay
RTC and EEPROM
IR @38kHz
8x LED
5x button
temp. sensor
the board
**broken link removed** **broken link removed** **broken link removed**

 

[MrDEB]

Suggestion- get rid of all the 90 degree bends and think about using daughter boards for the LCD, the led displays etc.
Being a home DIY your asking for a lot of headaches with that board.
Use the KISS method
Keep It Simple Stupid
Do you have a schematic you could post?

 

[DevilMKD]

haha the kiss standard
no i have not a schematic i have design it when i draw it
this was my first development board that i have only drawn, not tested , i have no time for that, i worked on my final year project and i doesn't finish this one

I'm design now a simple tutor board wit only few components

 

[MrDEB]

you might look at my board as it is pin for pin (99% positive) as the 16F887
If you want a board then perhaps we can make a deal?
I have the socket and headers that I can solder to board unless you want a completed board or bare board.
Let me know as I am etching a board this week.
see my first post for schematic. I revised some but the schematic is basically the same. Made board smaller , 4x6inches.

 

[DevilMKD]

thanks, but i will make my own boards

 

[MrDEB]

Just download DIPTRACE (free) then download the two files I posted and then make your boards
If you want the updated files let me know.
Will provide as well

 

[3v0]

Back in the micro controller days when you had to have external RAM ROM and everything else a development board made sense.

Much less so with modern micro controllers. I have a few modules that I can use with a solderless bread board to speed things up a bit. But most projects start with a unique PCB layout.

 

[bryan1]

Allo DevilMKD,
To me that does look like you used sprint layout software for that board ? I use it and a suggestion I got from 3V0 was when doing a dual sisded board and using via's to put a pad on both sides to ensure the contact is made between sides. Also I have trying to make a huge development board to have everything isn't the best way to go. As therewill be a time when you want to do something and the board can't as the pins are already taken. In my effort to learn smd I bought some TQFP breakout boards from futurlec and got some TQFP pic's. My first one is a 16f887 and as soon as the new boards arrive I'll be doing a pic32 64 pin breakout board. The idea behind this is I can make pcb's for the task I have and just plug a breakout board in. when the design is final and proven a much smaller final board can be made using smd.

As far as etching the boards, how far have you gone on this as soon I will be doing an article on converting an old toner head out of a laser printer into a pcb toner transfer tool.

Regards Bryan

 

[Pommie]

As far as etching the boards, how far have you gone on this as soon I will be doing an article on converting an old toner head out of a laser printer into a pcb toner transfer tool.

That sounds very interesting, I'll look forward to reading that.

Mike.

 

[MrDEB]

Yo Pommie!!
I havn't seen your name pop up in a lomg time.
Coarse I havn't been visiting here as often as I used to but will get back to a regular routine.
As for the PIC developement board - KISS
Get some software to design a board or download the two files for the board I already have built. ALL free

 

[DevilMKD]

Allo DevilMKD,
To me that does look like you used sprint layout software for that board ? I use it and a suggestion I got from 3V0 was when doing a dual sisded board and using via's to put a pad on both sides to ensure the contact is made between sides. Also I have trying to make a huge development board to have everything isn't the best way to go. As therewill be a time when you want to do something and the board can't as the pins are already taken. In my effort to learn smd I bought some TQFP breakout boards from futurlec and got some TQFP pic's. My first one is a 16f887 and as soon as the new boards arrive I'll be doing a pic32 64 pin breakout board. The idea behind this is I can make pcb's for the task I have and just plug a breakout board in. when the design is final and proven a much smaller final board can be made using smd.

As far as etching the boards, how far have you gone on this as soon I will be doing an article on converting an old toner head out of a laser printer into a pcb toner transfer tool.

Regards Bryan

yes its Sprint Layout 5.0, its a easy software for smaller project, for something big its better to use some professional tools like Altium Designer...
yes put pads on bot sides, but the picture is only from the one side

 

[MrDEB]

Just download DIPTRACE and start with a board design that works then add or substract stuff you don't want.
A shield or daughter board setup is perhaps the best trend going right now. LOOK at most of the boards that are available commercially, they have headers for use of a daughter boards

 

[MrDEB]

DIPTRACE files for board

this board has - 2 ADC/SERVO port connection headers
2 PWM/SERVO port connection headers
2 - I2C pullup resistors via a dip switch
2 Int pull up resistors via dip switch
2 N O push buttons
8 LED port status indicators (4 green(high) and 4 RED (low)
3pdt slide switch to switch between PRG and UART
ICSP header

The daughter board headers (2 - 20 pin) are 1.5inches apart to accept a daughter board. ALL the available port pins are connected to the headers.
ALL this on a 4 x 6 board. And yes it can be done w/ a 1x board w/ 6 jumpers