Project

# Title Team Members TA Documents Sponsor
47 Automated IC Chip Tester
Alison Shikada
Michael Ruscito
Ryan Yoseph
Anand Sunderrajan design_document3.pdf
final_paper2.pdf
presentation1.pptx
proposal1.pdf
# Problem
A common frustration in ECE 385 is when students find a given IC chip does not work as expected. Testing each chip manually is tedious and time consuming. Students are encouraged to test each chip before using them, but due to the time constraint and complexity of 385 labs, along with the time consumption of unit testing every chip, this advice is rarely followed. Additionally, students often burn out previously working chips without realizing it and are tasked with manually debugging every chip in their circuit.

# Solution Overview
Our project is targeted towards students by providing a small, relatively portable solution to unit test IC chips quickly and easily. We want to automate the process of chip testing using a database of TI datasheets and a streamline UI for easy testing. The user would only need to select the chip model number in order for our device to prepare the appropriate signals to each input or power pins. Our internal logic would analyze the output signal and determine if the chip provides the correct logic.

For example, an AND gate chip will run through a full truth table and test for accuracy, whereas a shift register chip will test both read and write functionality. Our prototype will only test DIP chips, but the concept could be carried over to other packaging.

# Solution Components
- **User-interactive part**: A phone app that allows the user to select the chip model number/gate that they will be testing. This information will be sent via Bluetooth to a dedicated transceiver on the PCB.
- **Brain**: The microcontroller will provide the input signals to the chip and compare the outputs with the expected results of each test. The expected signal output will be preloaded onto a Flash memory after the user has selected what chip model they are testing. The results of the unit test (whether the chip is working or broken) will be sent back to the phone app via bluetooth, as well as a visual feedback on the device with LEDs.
- **Breadboard**: The breadboard functions as the testing environment for the product. We believe a 1.8’’ x 1.4’’ breadboard is small and portable enough for testing applications.

# Criterion for Success
Phone will transmit a bluetooth signal that is properly received by an on-board transceiver.
Internal logic will accurately determine whether a chip gives the correct or incorrect output and our device designates the chip as either working or broken.

The UI of the design is easy to interpret and use, allowing the user to select the chip model number they want to test.

Electronic Mouse (Cat Toy)

Jack Casey, Chuangy Zhang, Yingyu Zhang

Electronic Mouse (Cat Toy)

Featured Project

# Electronic Mouse (Cat Toy)

# Team Members:

- Yingyu Zhang (yzhan290)

- Chuangy Zhang (czhan30)

- Jack (John) Casey (jpcasey2)

# Problem Components:

Keeping up with the high energy drive of some cats can often be overwhelming for owners who often choose these pets because of their low maintenance compared to other animals. There is an increasing number of cats being used for service and emotional support animals, and with this, there is a need for an interactive cat toy with greater accessibility.

1. Get cats the enrichment they need

1. Get cats to chase the “mouse” around

1. Get cats fascinated by the “mouse”

1. Keep cats busy

1. Fulfill the need for cats’ hunting behaviors

1. Interactive fun between the cat and cat owner

1. Solve the shortcomings of electronic-remote-control-mouses that are out in the market

## Comparison with existing products

- Hexbug Mouse Robotic Cat Toy: Battery endurance is very low; For hard floors only

- GiGwi Interactive Cat Toy Mouse: Does not work on the carpet; Not sensitive to cat touch; Battery endurance is very low; Can't control remotely

# Solution

A remote-controlled cat toy is a solution that allows more cat owners to get interactive playtime with their pets. With our design, there will be no need to get low to the ground to adjust it often as it will go over most floor surfaces and in any direction with help from a strong motor and servos that won’t break from wall or cat impact. To prevent damage to household objects it will have IR sensors and accelerometers for use in self-driving modes. The toy will be run and powered by a Bluetooth microcontroller and a strong rechargeable battery to ensure playtime for hours.

## Subsystem 1 - Infrared(IR) Sensors & Accelerometer sensor

- IR sensors work with radar technology and they both emit and receive Infrared radiation. This kind of sensor has been used widely to detect nearby objects. We will use the IR sensors to detect if the mouse is surrounded by any obstacles.

- An accelerometer sensor measures the acceleration of any object in its rest frame. This kind of sensor has been used widely to capture the intensity of physical activities. We will use this sensor to detect if cats are playing with the mouse.

## Subsystem 2 - Microcontroller(ESP32)

- ESP32 is a dual-core microcontroller with integrated Wi-Fi and Bluetooth. This MCU has 520 KB of SRAM, 34 programmable GPIOs, 802.11 Wi-Fi, Bluetooth v4.2, and much more. This powerful microcontroller enables us to develop more powerful software and hardware and provides a lot of flexibility compared to ATMegaxxx.

Components(TBD):

- Product: [https://www.digikey.com/en/products/detail/espressif-systems/ESP32-WROOM-32/8544298](url)

- Datasheet: [http://esp32.net](url)

## Subsystem 3 - App

- We will develop an App that can remotely control the mouse.

1. Control the mouse to either move forward, backward, left, or right.

1. Turn on / off / flashing the LED eyes of the mouse

1. keep the cat owner informed about the battery level of the mouse

1. Change “modes”: (a). keep running randomly without stopping; (b). the cat activates the mouse; (c). runs in cycles(runs, stops, runs, stops…) intermittently (mouse hesitates to get cat’s curiosity up); (d). Turn OFF (completely)

## Subsystem 4 - Motors and Servo

- To enable maneuverability in all directions, we are planning to use 1 servo and 2 motors to drive the robotic mouse. The servo is used to control the direction of the mouse. Wheels will be directly mounted onto motors via hubs.

Components(TBD):

- Metal Gear Motors: [https://www.adafruit.com/product/3802](url)

- L9110H H-Bridge Motor Driver: [https://www.adafruit.com/product/4489](url)

## Subsystem 5 - Power Management

- We are planning to use a high capacity (5 Ah - 10 Ah), 3.7 volts lithium polymer battery to enable the long-last usage of the robotic mouse. Also, we are using the USB lithium polymer ion charging circuit to charge the battery.

Components(TBD):

- Lithium Polymer Ion Battery: [https://www.adafruit.com/product/5035](url)

- USB Lithium Polymer Ion Charger: [https://www.adafruit.com/product/259](url)

# Criterion for Success

1. Can go on tile, wood, AND carpet and alternate

1. Has a charge that lasts more than 10 min

1. Is maneuverable in all directions(not just forward and backward)

1. Can be controlled via remote (App)

1. Has a “cat-attractor”(feathers, string, ribbon, inner catnip, etc.) either attached to it or drags it behind (attractive appearance for cats)

1. Retains signal for at least 15 ft away

1. Eyes flash

1. Goes dormant when caught/touched by the cats (or when it bumps into something), reactivates (and changes direction) after a certain amount of time

1. all the “modes” worked as intended

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