Here’s some help on the assignment due on Monday. The entire set uses three different integrated circuit (IC) components (see image 3 below)

• IRF540: A MOSFET/Power Transistor; used to turn DC actuators on and off
• L7805: +5V Voltage Regulator, used step-down the power-supply (>5V) to 5V for a servo
• LD33V: +3.3V Voltage Regulator, used to setp-down the power-supply voltage (>5V) to 3.3V for a small solenoid

Image 1 below shows a breadboard circuit for connecting the Teensy microcontroller to (letters refer to image 2 below)

• A: 1 x 3.3V solenoid (needs 1 x LD33V 3.3V Voltage Regulator and 1 x IRF540 MOSFET)
• B: 1 x Servo (needs 1 x L7805CV +5V Voltage Regulator)
• C: 1 x 12V solenoid (needs 1 x IRF 540 MOSFET) [image 6]
• D: 1 x 12V incandescent light bulb (needs  1 x IRF 540 MOSFETS) [image 6]
• E: 1 x 12V RGB LED strip (needs 3 x IRF 540 MOSFETS) [image 7]
• F: 3 x photoresistors (needs photoresistor and resistor) [image 8]

Please prepare a system using Max, a Teensy microcontroller, and the necessary components that performs the following:

• A photocell controlling the position of a servo that rotates a small figure (e.g. a toy figure or animal, a fruit, a plant, a hairball, a sea urchin, etc)
• Another photocell controlling the brightness of an incandescent light-bulb that create an animated shadow; for this you must find a way to arrange and fix in space: the light bulb, the object casting a shadow, and the screen onto which the shadow is cast
• Another photocell controlling the speed at which a solenoid hits against some doohickey that makes sound, i.e.  your musical score. For this you must find a way to fix a solenoid in the upright position, so that after it strikes the doohickey bounces back down to its relaxed position

Additional credit give for:

• Using any sensor besides a photocell
• Creating a meaningful interaction among the three actors: the figure, the light, the sound