IMTx: DMx102br Arduino Programming, from novice to ninjabr Lab 1 (auto-graded)br br 1. All the pins have to be set as OUTPUT at the beginning of the sketchbr 2. The green LED (on pin 4) is switched on for 3 seconds (green LED will be the first to light up) then it is switched offbr 3. When the green LED is switched off, orange LED is switched on for 1 seconds then it is switched off againbr 4. When the orange LED is switched off, red LED is switched on for 3 seconds then it is switched off againbr 5.