EE192: Mechatronics Design LabCheckpoint 4: PCB SchematicIn preparation for printed circuit design, show complete schematic for all electronics you want on your PCB. This includes motor driver, and DC-DC buck converter (or linear regulator). Include values, and part numbers. In the layout include connectors (marked clearly!), and mounting holes as needed for standoffs or heatsinks (no part placement or routing required). You might have a battery cable wired to this board, or motors as well. These would need mounting holes for large gauge wire as well. It is recomended that copper traces not be added yet until you get feedback on schematic. The layout needs only the board size and mounting holes. You do not need to place components or route traces for this checkpoint. The finalized layout is due Tuesday Feb 26 at 11:59 pm on Bcourses. In disussion (Wed Feb 27 and Thurs Feb 28) you will peer review each others pcbs. You then have time to make any needed changes before the final Gerbers are due (Friday Mar 1 at 1:59pm on Bcourses). Checkpoint 4: motor from batteryThis part of the checkpoint is largely a simple extension of the previous one, except the motor must be powered from the battery. Like checkpoint 2, this is so you can dedicate time to finishing and iterating on your circuit boards designs. In order to receive your battery, you must demonstrate a working motor drive circuit on the benchtop power supply (from checkoff 3). NOTE: Since battery distribution is contingent on checkoff 3 and some teams are retrying checkoff 3 this week, the late penalty for checkoff 4 will be slightly reduced: demonstrating motor from battery one week late will recieve two thirds credit instead of one half (this does not apply to the PCB schematic). Checkoff ProcedureYour motor should be properly attached to the chassis and must drive the wheels. Motor power must come from the battery and control signals must be generated by your microcontroller board running your code (single program). You may use the serial terminal to send manual control signals (like setting the motor duty cycle). You may continue to power the microcontroller board from the USB port as you won't have your DC/DC converters yet. You will be quizzed to demonstrate how to use the battery. All power connection must be soldered properly. Your hardware should not be damaged (i.e. components should not catch fire) during any of these tests. Demonstrate your motor driver circuit works and is safe running from your battery (in any order, instructor's choice): Brushed motor (Using 11.1 LiPo battery)
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