Homemade PIC robot board.

[galannthegreat]

I am making my own "PIC board" for my robotics projects. I am trying to save as much space as possible on the board with out causing any serious problems, and now I just have one simple question. Would having the crystal placed under the MCU cause too much electrical noise that would interfere, or should I place it somewhere else?

[hazzer123]

Placing a crystal there wouldn't cause too much electrical noise

[galannthegreat]

Thank you very much.

[GearMotion]

I am making my own "PIC board" for my robotics projects. I am trying to save as much space as possible on the board with out causing any serious problems, and now I just have one simple question. Would having the crystal placed under the MCU cause too much electrical noise that would interfere, or should I place it somewhere else?

It will be fine under the processor.

[galannthegreat]

Thank you aswell.

I just absolutely hate having something so far off and taking up valuable board space, and now it'll make the board a little neater looking aswell.

[paulstreats]

I remembe seeing a recommendation just recently about running +5v and gnd directly under the PIC lengthways to help remove noise, maybe this could also be a consideration for you.

[SmAsH]

I remembe seeing a recommendation just recently about running +5v and gnd directly under the PIC lengthways to help remove noise, maybe this could also be a consideration for you.

i do that always anyway... but i never knew it would do that?

[galannthegreat]

Thanks paulstreats, I will consider this.

[TrickyNekro]

I placed one many times...
What you need to consider is power cables over the crystal line and to keep crystal lines short....

[galannthegreat]

I've finished the board, just need to get some pics up of it.

[galannthegreat]

Here are some pics of the completed board. Give me some suggestions I should consider or integrate into the board.

[SmAsH]

wow, great job! so is it like a giant $50 board?

[galannthegreat]

Yea, it would be called that, but with a PIC, and now I'm thinking if I should write a tutorial on this, for the minority of PIC users and the like who want to use them.