Write an arduino sketch that programs your multi-colored led so that the red and green leds are on for 500 ms, then only the blue led is on for 500 ms, then finally only the green led is on for 500 ms. this pattern of leds flashing should continue forever. circuit hint: 
 • you can wire up leds from digital pins 10, 11, and 12 of your arduino with a 330 ohm resistor for each led. make sure that all the grounds are connected together to arduino gnd.

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?