 | MCB9B500 User's Guide |  |
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| LEDsThe MCB9B500 board has the following LED indicators: - The POWER LED indicates that power is present on the board and shows the status of the USB DC voltage of 5 Volts.
- The 8 Port LEDs marked P38 - P3F connect to the respective pins on the I/O port. These LEDs are useful for indicating program status while testing your applications.

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