Please see attached question. Can it be completed on a word/ excel document please and show any working out. Thank you for looking at my question

Light emitting diodes are often used to display output codes in test and signal systems, where a binary ‘1’ lights the LED.

  1. For an 8-bit output, work out the binary, hex and decimal code required:

    1. to light all the LEDs,

    2. to switch them all off,

    3. to light alternate LEDs, with the LSB = 1.


  1. Now work out the binary, hex and decimal code sequence for eight 2-digit hex numbers (2x4 binary bits) which will produce:

    1. a bar graph effect on a set of eight LEDs (all off, then LSB on, two on, three on and so on until all eight are on),

    2. a scanning effect (switch on one LED at a time, in order, LSB first, i.e. only 1 LED on at any given time).


  1. Work out the binary, hex and decimal code for a 4-sequence, 3-bit traffic light given as: red, red and amber, green, amber, with LSB being red