task main()
{
    // I2C Byte pattern to set the digital IO pins for Input
    // Message Length: 3    Data: 02 4E 00    Return bytes: 0
    byte msgSetDigitalIOPins[] = { 3, 2, 0x4E, 0 };

    // I2C Byte pattern to read the digital 6 bit value
    // Message Length: 2    Data: 02 4C     Return bytes: 1
    byte msgReadDigitalValues[] = { 2, 2, 0x4C };
   
    byte retBytes[8];  // return (reply) bytes

    eraseDisplay();
    SensorType[S1] = sensorI2CCustom;
    sendI2CMsg(S1, msgSetDigitalIOPins, 0);  // Make sure all of the digital I/O pins are in INPUT mode.

    while (nI2CStatus[S1] == STAT_COMM_PENDING)
        wait1Msec(2);

    readI2CReply(S1, retBytes, 0);

    while (true)
    {
        sendI2CMsg(S1, msgReadDigitalValues, 1);

        while (nI2CStatus[S1] == STAT_COMM_PENDING)
            wait1Msec(2);

        if (nI2CBytesReady[S1] == 1)
        {
            readI2CReply(S1, retBytes, 1);

            nxtDisplayTextLine(1, "B: %d", (~retBytes[0]) & 0x01);
            nxtDisplayTextLine(2, "B: %d", (~retBytes[0]) & 0x02);
            nxtDisplayTextLine(3, "B: %d", (~retBytes[0]) & 0x04);
            nxtDisplayTextLine(4, "B: %d", (~retBytes[0]) & 0x08);
            nxtDisplayTextLine(5, "B: %d", (~retBytes[0]) & 0x10);
            nxtDisplayTextLine(6, "B: %d", (~retBytes[0]) & 0x20);
        }
        else
            nxtDisplayTextLine(2, "B: ERR");
    }
}