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.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.