Jacob C.

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The plan is to create a module that will work with micro-controllers and micro-processors.

Idea: Hook up an EEPROM’s data pins to the refresh pins and use a counter IC to go through each address from 0-9. A read pin and write pin will then be used to change the address and therefore change the way the EEPROM interacts with the CAS and RAS pins on the ram. The EEPROM will also control which set of 10 bits are displayed on the rams address.

DESCRIPTION This project will focus on dumping the contents of game cartridges and hopefully emulating one. The reading is straightforward. The community has discovered that the pins use a Nintendo proprietary SPI-like 8-bit bus. After taking apart a Nintendo switch and looking at the insides, I will 3D model a similar device and print and make it. The emulating won’t be as straightforward because of tiny encasing and high-density data. Most likely a cable-like device will be made instead of a cartridge.The microcontroller that will be doing all of the work will be an Arduino Uno R4 WIFI. It has a fast 32-Bit ARM chip and its WIFI module allows for creating an access point and making a TCP/IP server to interact with it remotely, removing the need for a tedious display or cable for serial to communicate to a person or computer. The cartridge has 17 total pins .I will use resistors on the pins just in case. The documentation isn’t that detailed.
HARDWARE Arduino Uno R4 WIFI
SOFTWARE If I decide to make a webserver to interface with the device then I will also be using a basic markup language HTML and CSS.
DESIGN Cartridge reader and possible emulator will be designed in fusion 360. I will print it out in resin at home to get really thin dividers. Probably no PCB this time.
COMMUNICATION The Arduino will communicate to the client using WIFI, specifically the TCP/IP protocol. The device can then be controlled and read using a computer.
MECHANICAL N/A

Graham D.

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DESCRIPTION I plan to create a Servo motor using a DC motor, a PID controller, and a custom gearbox. I will use basic opamp circuits to create the PID controller, which will drive the DC motor. The PID control system will be created from differential, inverting, differentiating, integrating and summing amplifier circuits. The motor will connect to a gearbox which will increase the torque while decreasing the rate of rotation. Additionally, the gearbox will connect the feedback potentiometer to the output. Due to the potentiometer, the servos range of rotation will be limited to 270º.
HARDWARE FET biased OPAMPs will be used for all of the opamp circuitry due to their better accuracy, especially with differentiating and integrating circuits. Additionally, a half MOSFET H-bridge will be used to drive the motor. A standard 5 V DC motor will be used.
SOFTWARE None
DESIGN I will use fusion360 to design all of the gears, and the encasing for the servo motor. I plan to use eagle to create an SMT pcb for the controller circuit, which will then be integrated into the complete servo case. Ball bearings, and metal rods will be included in the gearbox. Additionally, i hope to be able to test different materials for the gears to be fabricated from.
COMMUNICATION None
MECHANICAL I will use a 5V DC motor to power the servo. I will design a gearbox in Fusion360 which will decrease the angular speed, and increase the torque of the motor. Additionally, the gearbox will connect the potentiometer which gives the controller the feedback needed for PID control.

Vithusan J.

DESCRIPTION For this project, I plan to create a pitching machine. It will be able to launch baseballs to simulate pitches, which would be used to practice batting. To do this, there will be three spinning wheels, positioned equally spaced apart in a circular shape where it will accelerate the ball. By changing the speeds of the wheels, different pitches can be imitated (like a curveball). To control the pitch-type and the speed of the pitch, there will be a control panel with buttons.
HARDWARE 328P
SOFTWARE Arduino C
DESIGN I’ll be using Fusion to design cases and mounts for the various parts of the machine. I’ll also use Eagle to design a PCB for the internal circuitry.
COMMUNICATION N/A
MECHANICAL I’ll be using DC motors to power the wheels.

Liam M.

DESCRIPTION This ISP will be to build a robotic arm with 5 degrees of freedom (DoF). This arm will have a simple pincer jaw on the end effector and other than that will have three “elbow” joints and two “wrist” joints, meaning three joints used for normal positioning and two for rotation. The arm will have a diverse range of motion and be able to move to defined coordinates in 3D space as well as move along lines within 3D space. This is not a trivial task as to accomplish this every joint must work together.
HARDWARE There are not too many hardware components in this project (SAR ADC is enough for this term), so besides the microcontroller the only other major components will be the servo motors used in each joint as well as a potentiometer to measure the current joint angle. It is possible that the first joint will have to be a high torque stepper motor simply to keep the arm standing but it is impossible to tell if this will be necessary without first testing the servo with the arm assembled.
SOFTWARE (Register Level Adruino C) The software part of this project is quite tricky. To figure out what angle all the joints must be at to position the jaw at a certain coordinate in 3D space the inverse kinematics of the arm must be calculated which are essentially some complicated trigonometry equations that must be derived depending on the arm’s parameters. In addition, to allow the jaw to move in straight lines there must be an interpolation algorithm to calculate waypoints along the path. The plan for this is to define lines as Bezier curves which will allow for smooth interpolation and continuous movement if desired.
DESIGN This project will be largely 3D printed. The arm will be designed in Fusion 360 and broken into its different sections. Servo motors will be mounted within the 3D printed sections to allow for connections between segments at joints.
COMMUNICATION N/A
MECHANICAL As mentioned, the arm will use servo motors at each joint, and since this is a 5 DoF arm there will be 5 servos with one to control each joint. Two will be continuous servo motors as their rotation will not be restrained while with the other three elbow servos this would be unbeneficial as their range of motion is physically restricted by the rest of the arm.

Alex S.

The first part of this project is the main console. The main console will have the scoreboard for individual players and teams on one side using seven segment displays and their accompanying ICs. The second side will have a control panel to alter scores and game settings using a button (PBNO) to select, a potentiometer to scroll through options, and an LCD panel to display the options. This device will be used by the game master.

DESCRIPTION As a continuation of the previous project, this ISP aims to improve the scoreboard console for HID interaction, and sets it up for RF communication with six or twelve peripherals, which will be used by the players. The console expansions will take place on the same development board and Arduino, with added connections to a second PCB, as well as two RF modules (the nRF24L01 can only communicate with six other peripherals as a controller). The second PCB on the console will be a corrected version of a PCB design made in the first phase.

Rather than fitting for a specific type of saxophone, I hope to make mine adaptable for all of my instruments. It will include an attachment device, fit for various instruments I play, with a microphone and hand-accessible dials for speaker control, a Long & McQuade amp or speaker, a control pedal for when hand control isn’t viable, and a main circuit forming the various connections between audio sources and MIDI devices. Any operating Varitone will have three or four devices: an attachment, a main circuit, a speaker, and possibly a pedal.

I hope to 3D print most of the devices like the instrument attachments, but I plan to do some wire tinkering with guitar pedals to make use of their existing circuits. The internal circuit of each device will be housed on a THT PCB, and controlled by either a microcontroller or older devices that were used within varitones.