Equipment

Lab Equipment

The Srivastava Senior Design Lab has a wide selection of equipment that provides nearly all of the capabilities of the other ECE teaching labs in one place. Although the equipment may not be identical to that found in these other teaching labs, similar functionality is offered. Use the experience of learning new equipment as a way to expand your horizons. If you are using a piece of equipment for the first time, ask a TA for assistance, to make sure you understand how to safely use it. If the available equipment does not meet the needs of your project, talk to the course staff, and we will help you find what you need elsewhere on campus, consider purchasing it for the senior design lab (if it would be used by many groups), or brainstorm alternate ways to solve your problem.

Lab Kits

Each team is provided with at least one lockable storage drawer in the lab as well as a portable lab kit. An additional drawer and/or kit may be issued as need arises and facilities allow.

The lab kit includes a box with carrying handle and contains a wiring board for prototyping circuit projects, a multiple-output power supply, a digital multimeter, and a set of 8 cables (2 bnc/bnc, 2bnc/pin, 2 banana/banana, and 2 banana/pin). This is checked out to you by your TA at the beginning of the semester and must be returned undamaged at the end of the semester. Missing lab kits will result in an encumbrance or withheld diploma and a charge of $500.00, so always be sure to lock your lockers! Also, do not store any cables from the lab in your kit. Doing so will result in a loss of points.

Test Equipment

Most equipment is connected to the PCs via HPIB cables. Below is a sampling of the test equipment available:

Specific setups at the various lab benches can be in the listing at the bottom of this page.

Computers

The lab has PCs with enough processing power for the needs of nearly any senior design project. These machines are networked to a high-capacity laser printer (printing will count against your standard print quota). Each has an Ethernet connection to the campus network, an HPIB interface card connecting it to all of the standard instruments on its bench, and a sound card. The computers are maintained by Engineering IT, located in 3080 ECE Building.

The PCs are presently configured with the software shown here. Their primary uses include:

Test Equipment (Listed by lab bench)

 
Bench: A
Oscilloscope Rohde & Schwarz RTE 1054
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
 
Bench: B
Oscilloscope Agilent DSO7104B
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
 
Bench: C
Oscilloscope Agilent DSO-X 3034A
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Pulse Generator Hewlett-Packard 8011A
Dual Output Power Supply Hewlett-Packard 6234A
 
Bench: D (Power)
Oscilloscope Agilent DSO-X 6004A
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Pulse Generator Hewlett-Packard 8011A
Triple Output Power Supply Hewlett-Packard 6235A
Digital Power Analyzer Valhalla Scientific 2101
DC Power Supply Hewlett-Packard 6632A
DC Electronic Load Agilent 6060B
kW Power Supply Sorensen DCS 20-50
 
Bench: E
Oscilloscope Agilent DSO-X 3034A
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Pulse Generator Hewlett-Packard 8011A
 
Bench: F
Oscilloscope and Logic Analyzer Teledyne LeCroy HDO 4054-MS
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Pulse Generator Hewlett-Packard 8011A
 
Bench: G (power)
Oscilloscope Agilent DSO-X 6004A
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Triple Output Power Supply Hewlett-Packard 6235A
DC Power Supply Hewlett-Packard 6632A
DC Electronic Load Hewlett-Packard 6060B
Current Probe Amplifier Tektronix AM 503
 
Bench: H (RF)
Mixed Domain Oscilloscope Tektronix MDO4054B-3
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
S-Parameter Network Analyzer Hewlett-Packard 8753ES
S-Parameter Test Set Hewlett-Packard 85047A
Pulse Generator Hewlett-Packard 8011A
Signal Generator Hewlett-Packard 8657B
 
Bench: I
Oscilloscope Agilent DSO7104B
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Pulse Generator Hewlett-Packard 8011A
Dual Output Power Supply Hewlett-Packard 6234A
 
Bench: J (RF)
Oscilloscope Agilent DSO7104B
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Triple Output Power Supply Hewlett-Packard 6235A
DC Power Supply Hewlett-Packard 6632A
Network Analyzer Hewlett-Packard 8751A
S-Parameter Test Set Hewlett-Packard 87511A
 
Bench: K
Oscilloscope and Logic Analyzer Teledyne LeCroy HDO 4054-MS
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Dual Output Power Supply Hewlett-Packard 6234A
 
Bench: L (RF)
Mixed Domain Oscilloscope Tektronix MDO4054B-3
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Vector Signal Analyzer Agilent 89441A
RF Section Hewlett-Packard 89440A
Signal Generator Hewlett-Packard 8657B
Precision LCR Meter Hewlett-Packard 4284A
 
Bench: M
Oscilloscope Agilent DSO7104B
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
 
Bench: N
Oscilloscope Agilent DSO-X 3034A
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
 
Bench: O
Oscilloscope Agilent DSO-X 3034A
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series
Pulse Generator Hewlett-Packard 8011A
Triple Output Power Supply Hewlett-Packard 6235A
Communications Receiver AOR AR5000
 
Bench: P
Oscilloscope Agilent DSO-X 3034A
Digital Multimeter Keysight 34461A
Triple Output DC Power Supply Keysight E3631A
Waveform Generator Agilent 33500B Series

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

Project Videos