Building the blue board

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The blue board stacks with the black board and the green board.

The DC2015 Control board

The blue board is a clone of the chipKIT DP32 by Digilent Inc.

It uses the PIC32MX250F128B, running at 40MHz with 128k flash and 32k RAM. The blue board breaks out 15 I/O pins, including 9 analog input and 5 PWM.

The schematic for the board is:

Pin	Functionality
9/A3	Digital pin 9, by default analog input 3
8/A2*	Digital pin 8, by default analog input 2, capable of PWM
10/A4	Digital pin 10, by default analog input 4
7/A1	Digital pin 7, by default analog input 1
11/A5	Digital pin 11, by default analog input 5
6/A0*	Digital pin 6, by default analog input 0, capable of PWM
12/A6	Digital pin 12, by default analog input 6
13/A7*	Digital pin 13, by default analog input 7, capable of PWM
14/A8/LD1	Digital pin 14, by default analog input 8, hardwired to the green LED LD1
17/BT1	Digital pin 17, hard wired to the User button BT1
3*	Digital pin 3, capable of PWM
18	Digital pin 18
2*	Digital pin 2, capable of PWM
1	Digital pin 1
0	Digital pin 0

Power

The blue board is powered by a 5V USB source, using a USB A to mini B cable.

The PIC32 is a 3.3V chip - do not put 5V on any of the pins, especially the analog inputs!

5V, 3.3V, and ground are broken out to be used for sensors and actuators.

Image of power outs

Assembly

Be sure to read up on How to solder

• Solder the 3.3V surface mount regulator
• Solder the USB mini B connector
• Solder the 28 pin DIP adapter
• Solder the 10k and 330 resistors
• Solder the 10uF capacitor, note the polarity
• Solder the 0.1uF capacitor
• Solder the 1uF capacitor
• Solder the green LED LD1 and the red LED Power, note the polarity
• Solder the 8MHz crystal resonator
• Solder the push buttons Reset and User, make sure they are accessible from the side
• Solder the 15 pin female header
• Solder the 2 pin ground header
• Solder the 2 pin ground, 3.3V and 5V headers