PIC24FJ128GA310 has 16 MIPS CPU speed, 128K bytes of program memory (flash), 8K bytes of data memory. It has LCD display controller, 85 General purpose I/O pins, 16-bit and 32-bit timers, 10/12-bit ADC (24 ch), 4 UARTs, internal 8MHz and 32kHz oscillators, internal Real time clock (RTC), 2 I2C and 2 SPI. It also contains 3 analog comparators and programming and debugging interface.

8MHz crystal oscillator. We carefully chose the most convenient crystal value that provides clock frequency which can be used directly, or with the PLL multipliers to create higher MCU clock value. MCU card also contains 32.768 kHz crystal oscillator which provides external clock waveform for RTCC module.

USB communications lines. These two jumpers, when in USB position, connect D+ and D- lines of the on-board USB connector with RG2 and RG3 microcontroller pins. Since PIC24FJ128GA310 doesn't have USB support, jumpers are in I/O position.

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