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This board has been developed to adapt my UART projects to USB comunication, because new computers might not have the old serial port.

So I decided to use the Microchip MCP2200 for this purpose.

As you can see from the first picture, there are two jumpers. On the left in order to use the 3.3V on the resistors as pull-up, while the jumper on the right to chooce if the MCP2200 is powered from USB power (MCP1826 LDO from 5V to 3.3V) or from external 3.3V power.

In the last picture, you can see the board design and circuit drawn with the software DIY.

Finally, to configure the MCP2200 you can use the 'MCP2200 Configuration Utility' (from www.microchip.com).

R1 = 10K
R2 = 330
R3 = 20K
C1 = 22pF
C2 = 0.1uF
C3 = 3.3uF 16V
XTAL = 12MHz
D1, D2 = Led
IC1 = MCP2200
IC2 = MCP1826S

DIY file (last picture)
DIY 3.28.0


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