XProject PCB
The PCB on the left directly plugs into an arduino mega to control a variety of things. It was made to integrate a keypad, LCD display, bidirectional DC motor, and a buzzer. This design was created from multiple different independent designs and integrated with each Other to allow full functionality with one PCB plugged directly into the arduino MEGA.
Laser Diode Driver
The circuit board on the right was designed in a Lasers and Optics course and is designed to use an arduino nano to run a laser Diode. The laser diode is driven by a power source and has different outputs of the laser given environmental factors such as temperature. This circuit is nearly identical to laser diode drivers on the market going for about $100 and can be manufactured at about 20% that price.
Other/Current Projects
Other circuits have been designed and are being designed by me currently. I have made a multiplexer array that accurately cycles through 64 spaces and gives data on whether a magnetic piece is present or not for use in an automated chess board. I also created a 2 axis step motor grid for that project. I am currently attempting to make an arduino uno from scratch and am designing the PCB right now. I hope to soon design a project using IOT device and solar panels for Voltaic systems blog.
XProject 3D AUTOCAD Design
The design on the left is the final iteration of the XProject 3D design. The design is used to hold a servo motor to be mounted on the front of the piece in order to move a separately designed and tested 'flap' for blocking the nest cam housed on the side. The back plate on this design allows for a neopixel to be mounted and shows a specified color depending on the state of the system. The system was able to block the camera completely, open completely as well as have an intermediate state to allow the camera to gather video information for a designated interval after blocking the camera for a seperately designated interval to allow for partial blockage of the camera. On top of this functionality the user is able to cut microphone feed and power ot the camera. In the fron of the case there is a small slot for an IR sensor to be placed to allow the user to toggle states with a remote.
Arduino MEGA Casing with Battery Compartment
The design on the right is a snap case designed to hold an arduino MEGA as well as a rechargable battery in case the arduino became unplugged. This snap case allows for the USB cable for the arduino to be plugged in if desired, as well as a slot for the power plug to attach to the battery and acoompanying circuit to ensure the battery does not overcharge. Air vents were added to the top of the snap case to ensure the arduino did not have overheating issues. The bottom inside of the case was designed with small pins which the arduino would sit directly on to make sure the arduino was held in place. The covering for the battery enclosure is seperate from that which holds the Arduino and is much more easily removed.
Smart Chess
Not pictured above are multiple simple designs for the smart Chess board. For the smart chess project, it was necessary to build multiple small connectors for the 2-axis rail system as well as a design for the chessboard which was made with a lasercutter. Along with the pieces needed to connect the axis system, it was necessary to solder together 64 hall effect sensors to attach to the Multiplexer pcb board to cycle through states of the board. Completing this part of the project greatly improved my soldering and electronics organizational skills requiring a compact system that would not interfere with the axis or the chess board.
