If I were getting this made by a PCB house, I would choose double sided layout and put a ground plane on the bottom side. For this board layout, all traces except GND would appear on the top side.

Is this a design you are talking about ? double sided design
blue is bottom layer and red is top layer

 

Your board is a simple layout that turns out well on a single sided layout.
There is little advantage to go with double sided PCB.

 

Your board is a simple layout that turns out well on a single sided layout.
There is little advantage to go with double sided PCB.

Is this board ready to send to PCB manufacturing house ? Or Does it need more improvement?

 

You should put an ISP programming header on the board.

 

Is this board ready to send to PCB manufacturing house ? Or Does it need more improvement?

Add test points for + - power, a external connector/header for reset, a led for power indication, a 'blink' led and some PORT pin header for diagnostics and maybe a few extra ground headers for easy attachment of test equipment like logic probes. The ISP programming header is also a very good addition.

 

Before you spend money having boards made, have a look at this.



https://www.olimex.com/Products/PIC/Proto/PIC-P40-20MHz/
https://www.olimex.com/Products/PIC/Proto/PIC-P40-20MHz/resources/PIC-P40.pdf

 

Is this a design you are talking about ?

It looks to me like you have a decoupling cap in the same place as the crystal and it's not connected.

Why do you have that ugly wire jog on C6?

Your layout has too much whitespace for my liking.

 

Add test points for + - power, a external connector/header for reset, a led for power indication, a 'blink' led and some PORT pin header for diagnostics and maybe a few extra ground headers for easy attachment of test equipment like logic probes. The ISP programming header is also a very good addition.

added a external pushbutton for reset, a led for power indication

It looks to me like you have a decoupling cap in the same place as the crystal and it's not connected.

Why do you have that ugly wire jog on C6?

Your layout has too much whitespace for my liking.

this is latest design I don't see anything wrong with C6 and crystal

 

added a external pushbutton for reset, a led for power indication
this is latest design I don't see anything wrong with C6 and crystal

Boards are more aesthetically pleasing when components are aligned. R3 perpendicular to R1 and R2 for no reason looks awkward. As is the irregular spacing of C5, R1, and R2.

There's no reason for the bend in the trace from the LED to R3.

You omitted the second decoupling cap you had in your original schematic.

Board layouts are easier to read if you don't obscure things (designators for C1 and C2) or show irrelevant layers (the green stuff over/under the crystal. You should turn off the origin markers.

The top mounting holes don't look aligned. Was that intentional?

 

hi K,
What is the planned use for this PCB.?
Consider if you have input to the PIC Ports from say an external unit, how do you plan to connect the 0V/Common from the external unit to your PCB.?

E

 

I added everything except second decoupling capacitor in this design. I would use jumper wires for ISP connection

 

Why not connect the ISP pins?
There is no harm in doing so now instead of having to use jumper cables.

 

Why not connect the ISP pins?
There is no harm in doing so now instead of having to use jumper cables.

yes it can be done in the design. In fact I am thinking of making it a double layer PCB. I would also find it easier to add a second de coupling capacitor and ISP connection with microcontroller

 

Add test points for + - power, a external connector/header for reset, a led for power indication, a 'blink' led and some PORT pin header for diagnostics and maybe a few extra ground headers for easy attachment of test equipment like logic probes. The ISP programming header is also a very good addition.

I added everything in this design. This is a double sided PCB. I hope design meets all the requirements.

RED is top layer
BLUE is bottom layer

Is this board ready to send to PCB manufacturing house ?

 

Hi K,
Where did you get the connection information from for the ISP pin connections.?
E

 

Hi K,
Where did you get the connection information from for the ISP pin connections.?
E

I got information from this link
http://www.learningaboutelectronics.com/Articles/How-to-program-a-PIC-microcontroller.php

 

hi K,
I don't see any connection to /MCLR pin #1 from the programmer.?
This image shows how I connect my ISP.

E

 

hi K,
I don't see any connection to /MCLR pin #1 from the programmer.?
This image shows how I connect my ISP.

Thanks, I forgot MCLR connection I now connected it

 

Why is TEST-PIN connected to +5V and GND?

ISP is a 6-pin header. Follow the same pinout as the programmer.

 

hi K,
Are the component holes Plated Thru Holes [PTH}, if not, how will you solder the pins on the components side of the PCB.? [Blue Track]
E

BTW: What about C3 ????