Log 1 - The 6-8 Pin PIC Proto Board & Enclosure

A project log for SynBlox : Low Cost Modular Music Synthesizer

Modular Synths are expensive and complicated. I propose a low-cost, entry-level/educational system to make the basics available to anyone.

John SchuchJohn Schuch 03/20/2018 at 03:490 Comments

The modular nature of my HackaDay Prize entry suggests that I will be building a lot of small PIC based circuits. For quite a while I was a huge fan of the tiny PIC Proto board produced by TAUTIC Electronics. Unfortunately they are not available any more so I decided to design my own, and while I was at it, design it to fit into the enclosure I hope to be able to use for my synth modules. 

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The board will accept any 6 or 8 pin PIC microcontroller. It has an ICSP header to connect a PIC KIT 3 or 4 for programming, though you'll need some sort of extension cable if you want to program the board while it is in the enclosure.

To the right of the proto area of the PCB you will see eight pads inside a white rectangle. These eight pads are connected to the eight pins of the PIC socket. You can jumper from here to connect the PIC pins to other parts of your circuit. NOTE: If you use a 6-pin device, pads 1 through 3 will be correct, but pad 6 will be pin 4, pad 7 will be pin 5, and pad 8 will be pin 6.

Power and ground busses are also provided along the top and bottom of the proto area.

The board also provides space for an MPC1700 LDO regulator and it's two associated 1uF caps. The MCP1700 is available in several voltages. I'm using 5 volts in this project (MCP-1700-500). You should obviously match the regulator to the voltage requirements of the PIC you are using on this board. If you chose not to use a regulator, you can jumper across it's location so that you can still use the power terminals provided on the PCB. 

I have released this PCB design in the PUBLIC DOMAIN ... no rights are reserved.

You will find the design files and other documentation in the following GIT Repository: