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Group 33

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Our Group

Bradley Spencer

Electrical Engineering

Caitlin Henderson

Electrical

Engineering

Justin Wu

Computer

Engineering

Stephanny Bais

Computer

Engineering

Caitlin Henderson (EE)

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Currently there is no way to view and track vaginal blood loss during cesarean surgery.

The big problem in the operating room.

Caitlin Henderson (EE)

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Motivation and Background

Postpartum Hemorrhage (PPH) is excessive blood loss after childbirth
33% bleeding vaginally under the drape that goes unnoticed

Breaking sterility
Hits nurses’ feet
Approx. 30 minute delay in reaction

“How to identify vaginal blood loss in real-time?”

Stephanny Bais (CPE)

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Motivation and Background

Orlando Health’s (OH) initial solution: See-through surgical drape

Problems: �1) Lights shining on the plastic�2) Can’t visualize bleeding with differing BMI (thighs close up)�3) Inconveniently checking ever so often

Another solution: Suction pad

Placed under the patient with a wall-mounted vacuum suction to collect fluid and transport it to a suction canister for visualization and quantification

More info: https://www.bleedid.com/

Stephanny Bais (CPE)

One of Orlando Health’s solution is a surgical drape with a see-through window.

�The idea is to see blood loss while doing the caesarean procedure. However, this isn’t completely reliable for reasons listed.

Another solution by Orlando Health is a pad connected to a vacuum suction to collect fluid and transport it to a canister.�The idea is to not only visualize blood loss, but also to quantify it.

EXCLUDE ***************

However, this isn’t reliable as expected:

For instance, light would shine on the plastic, making any blood loss hard to see.
This issue also occurs with patients having different BMIs.�

Ultimately, inconvenience can occur.��Another solution by Orlando Health is a pad connected to a vacuum suction to collect fluid and transport it to a canister.�The idea is to not only visualize blood loss, but also to quantify it. ***************

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The Solution:

The Bleed ID Project

Caitlin Henderson (EE)

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Past Iteration

Mechanical Engineering (MAE)

Developed the mechanical aspect of the Bleed ID Canister project (e.g., stress and strain), ultimately having a patented strain gauge assembly

Justin Wu (CPE)

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Motivation and Background

Improvements wanted by OH with MAE group’s iteration because of:

Too bulky for storage and quick assembly
Issues with sanitizing

Exposed wires
Exposed buttons
External keypad
External speaker
Labels written in Sharpie

Overly complex

RaspberryPi
GUI used
Breadboard instead of a PCB

Justin Wu (CPE)

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Goals & Objectives

Goals:

Refine overall function and aesthetics of the Bleed ID System
Display other data besides blood volume (e.g., average blood flow rate & elapsed time)
Reduce latency (interrupts > delays)
Combat alarm fatigue
Improve robustness with better covering and more features

Objectives:

Design new electronics and power with custom PCBs utilizing ESP32
Revise code for data calculation and display via strain gauge
Replace and design a new UI display
Revamp alarm functionalities with new audio and visual alerts
Implementation of Software Buttons via Touch Screen functionality
Multiple UI modes for clinician preference

Justin Wu (CPE)

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Function Goals

Determine new connection method

Improve “box sitting on shelf” style
Find a secure method to connect the monitor to the boom rail

System enclosure

New design for monitor
Reduce size of monitor
Improve buttons to waterproof

Bradley Spencer (EE)

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Table of Engineering Specifications

Caitlin Henderson (EE)

Audible alarm must activate within 3 seconds of threshold

Alarm button must pause audible alert within 1 second of being pressed

Blood volume must measure within 5% accuracy

Component	Parameter	Specification	Demonstrable
Alarm Speaker	Sound Level	80-90 dB SPL	Yes
Alarm Pause Button	Functionality	Pauses Alarm Sound within < 1 second of being pressed	Yes
Display	Brightness	1000-1500 cd/m²	Yes
MCU	Sampling Frequency	1000 Hz	No
ESP32 Microprocessor	System Latency	Alarm activation < 3 seconds	Yes
Strain Gauge	Resolution	10 to 100 grams	Yes
Strain Gauge	Blood Volume Accuracy	+/- 5% accuracy	Yes
Strain Gauge	Blood Flow Rate Accuracy	+/- 5% accuracy	Yes
Entire System	Power Consumption	Energy Usage 3 to 15 Watts	No
Enclosure	Material Durability	Withstand 2000 cleaning cycles	No
Telescoping Monitor Arm	Adjustment Range	0.5-1.5m	Yes

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Hardware Comparison and Selection

Bradley Spencer

Electrical Engineering

Caitlin Henderson

Electrical

Engineering

Bradley Spencer (EE)

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Hardware Flowchart

Caitlin Henderson (EE)

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Microcontroller

ESP32 allows room to expand if the client wishes

Bradley Spencer (EE)

	ESP32	RA4M1	ATmega640	MSP 430
Cost (USD)	2.50	5.96	10.28	2.50
DAC	yes	yes	no	no
Flash Memory	4 MB	256 KB	64 KB	128 KB
RAM	520 KB	256 KB	8 KB	512 b
Operating Voltage(V)	3V to 3.6V	1.6V to 5.5V	2.7V to 5.5V	1.8V to 3V
Current Draw	28 mA	154 mA	200 mA	230 µA
Power Consumption	0.1008 W	0.847 W	1.1 W	.5 mW
Speed	240 MHz	48 MHz	16 MHz	16 MHz
Processing Cores	2	1	1	1

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Linear vs Switching Regulator

Bradley Spencer (EE)

	Linear	Switching
Cost	Less expensive	More expensive
Efficiency	Less efficient	More efficient
Noise	Less noisy	Noiser
# of components	Requires few components	Requires more components

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WEBENCH

Bradley Spencer (EE)

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Regulator

	MAX8815AETB+T	TPS61027DRCR	TPS63061DSCR	TPS63001DRCR	TLV62569A
Min Vin (V)	1.2	0.9	2.5	1.8	2.5
Max Vin (V)	5.5	6.5	12	5.5	5.5
Output type	Adjustable	Fixed	Fixed	Fixed	Adjustable
Vout Min (V)	3.3	5	5	3.3	0.6
Vout Max(V)	5	5	5	3.3	5.5
Iout max (A)	1	1.5	2	1.6	2
Type	Boost	Boost	Buck-Boost	Buck-Boost	Buck
Frequency (MHz)	2	0.6	2.4	1.5	1.5
Maximum Efficiency (%)	97	96	93	96	95
Cost (USD)	5.49	2.09	2.41	2.16	0.21

Bradley Spencer (EE)

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Monitor

The Nextion display meets all of our needs and can be easily implemented

Bradley Spencer (EE)

	PIM372	ST0900I2W-RSLW-F	STM32	NX8048P070
Screen Size	8"	9"	7’’	7”
Cost (USD)	92.75	44.99	176.94	96.90
Resolution	1024 x 768	800 x 480	1024×600	800x480
Luminance (cd/m2)	350	250	1000	300
Input Voltage	5V	10.4V	12V	5V
Touch Screen	NA	NA	NA	Resistive
Communication	HDMI	I2C	RS485	UART

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Alarm Speaker

Caitlin Henderson (EE)

Attribute	Part Comparison
Part Name	CMS-15113-078SP-67	OWS-111535W50A-8	SW301008-1
Manufacturer	Same Sky (Formerly CUI Devices)	Ole Wolff Electronics Inc.	DB Unlimited
Digikey Part Number	102-5001-ND	3949-OWS-111535W50A-8-ND	2104-SW301008-1-ND
Sensitivity	91 dBSPL	99 dBSPL	95 dBSPL @10cm
Ingress Rating	IP67 - Dust Tight, Waterproof	IP67 - Dust Tight, Waterproof	IP67 - Dust Tight, Waterproof
Price (USD)	$3.17	$1.07	$3.81
Power Rated	0.7 W	1 W	1 W
Power Max	1 W	1.3 W	1.5 W
Termination	Solder Pads	Wire Leads	Wire Leads
Size [mm] (L x W x H)	15 x 11 x 3	15 x 11 x 3.5	30 x 17.5 x 3.7

DB Unlimited:

Flush Mount waterproof speaker

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Buttons Part 1 - Power Button

Caitlin Henderson (EE)

Attribute	Part Comparison
Part Name	Uxcell SPST Rocker Switch	Dorman 84824 Rocker Switch	DaierTek Rocker Switch	TIANWIDJEW Rocker Switch
Ingress Protection	Requires waterproof casing	IP54	Not IP rated but stated waterproof	IP65
On/Off Labels IEC 60417 5008 - O�IEC 60417 5007- \|	Yes	Yes	Yes	Yes
LED Indicator	No	Yes- Red	Yes - Red	Yes - Blue
Termination Style	Quick Connect	Solder Lug	Quick Connect	Quick Connect and comes with wires
Cost	$7.09	$16.63	$9.59 (For 5)	$9.99 (for 2)
Switch/Button Type	Boat Rocker Switch	Rocker Switch	Marine Round Rocker Switch	Round Rocker Switch
Size	3.4 x 3.1 x 1.3 inches	1.25 x 2 inches	0.91 x 0.91 inches	1.42 x 0.9 inches

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Buttons Part 2 - Toggle Settings Button

Caitlin Henderson (EE)

Attribute	Part Comparison
Part Name	IAR3F1300	IPC3FAD2	PB6B2RS3M1CAL00S500
Manufacturer	APEM Inc.	APEM Inc.	TE Connectivity
Termination Style	Solder Lug	Solder Lug	Wire Leads
Actuator Type	Round, Flat	Round, Domed	Round, Domed
Contact Rating	3A at 125VAC	3A at 125VAC	0.4VA max at 20V AC/DC
IP Rating	IP67 - Dust Tight, Waterproof	IP67 (Dust Tight, Waterproof)	IP68 (Dust Tight, Waterproof, Submersible)
Pros	Waterproof and dustproof,	Waterproof and dustproof	Highest ingress protection rating
Cons	Solder lug requires soldering, slightly more time-consuming but secure	Solder lug requires soldering, slightly more time-consuming but secure.	Lower power rating, may limit use in circuits requiring higher current.
Size	16.2 mm	13.6 mm	14 mm
Price	$25.08/each	$35.00/each	$8.69/each

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Buttons Part 3 - Alarm Button/LED

Caitlin Henderson (EE)

Attribute	Part Comparison
Part Name	SW-PB7-01LB42BFRR12VM	ULV4F2BSLL15L35	ULV4F2BSLL14L07
Display	N/A	Stop	Reset
DigiKey Part Number	2057-SW-PB7-01LB42BFRR12VM-ND	141-ULV4F2BSLL15L35-ND	141-ULV4F2BSLL14L07-ND
Manufacturer	Adam Tech	E-Switch	E-Switch
Ingress Protection	IP67- Waterproof, Dust-tight	IP67 - Waterproof, Dust-tight	IP67 - Waterproof, Dust-tight
Regulation Compliance	RoHS Compliant	cURus	cURus
Termination Style	Solder Lug	Solder Lug	Solder, Quick Connect - 0.110”
LED Functionality	Yes - Red LED	Yes - Red LED	Yes - Red LED
Price (USD)	$18.89	$14.15	$11.32
Size	12.00 mm diameter	19.20 mm diameter	19.20 mm diameter

Press to stop audible alarm

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Monitor Arm

Caitlin Henderson (EE)

Attribute	Part Comparison
Part Name	Inland LDT49-C012 Monitor Arm 452425	Lisen Amazon B0BW3KB8Y4 Monitor Arm	BONTEC Rotation Monitor Arm
Manufacturer	Inland	Lisen	Bontec
Monitor Size Compatibility	17" to 32"	4” -13”	13”-34”
Weight Capacity	19.8lbs	3.2kg	6.6 -19.8lbs
VESA Compatibility	75 x 75mm, 100 x 100mm	No	75x75mm,100x100mm
Tilt Range	+40° to -40°	Not Specified	+90° to -90°
Swivel Range	+90° to -90°	Not Specified	360°
Rotation Range	+180° to -180°	Not Specified	360°
Arm Extension	18.9" (479 mm)	Not Specified	17.7’
Cable Management	Yes	No	Yes

Mounting Options	Clamp: 0.39” -3.3” Grommet: 0.39” -2.8”	Clamp: 2.83” max	Clamp: 0.39”-2.76”�Grommet: 0.39”-2.76”
Material	Powder Coated Aluminum & Steel Construction	Carbon Steel	Zinc Metal
Color Options	Silver	Black, White	Black
Price	$99.99	$29.99	$35.99

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Sensor

Caitlin Henderson (EE)

Load Cell

Attributes	Parts Comparison
Parts Name	Ultrasonic Sensor (I2CXL-MaxSonar-WR MB7040)	Load/Weight Sensor �(ALAMSCN Digital Weight Sensor)
Measurement Method	Uses sound waves to measure distance to surface of liquid	Measures the increases in weight to the canister as it fills with blood
Accuracy	±1% to ±3% of the measured distance; accuracy drops significantly for distances under 20 cm.	±0.01% to ±0.1% of the full-scale reading
Integration Location	Mounts to the canister that collects the blood. Could be mounted to a lid.	Mounts to a canister holder.
Calibration	No calibration upon startup	Some calibration required based on size of canister.
Response Time	Real-time due to auto-calibration.	Real-time measurements update as the weight of the canister increases.
Ingress Protection	Must be modified with manufacture sold addition for IP67 rating.	Not IP rated but can be modified for waterproof ability.
Power	20-30mA at 5V �150W max	5-10mA at 5V - Load Cell�<5mA at 5V - ADC�75W max
Cost	$99.95 without waterproofing $179.95 with IP waterproofing	$7.99 including HX711 ADC

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HX711 - Analog to Digital Converter

Caitlin Henderson (EE)

• Two selectable differential input channels

• On-chip power supply regulator for load-cell and ADC analog power supply

• On-chip oscillator requiring no external component with optional external crystal

• On-chip power-on-reset

• Simple digital control and serial interface: pin-driven controls, no programming needed

• Selectable 10SPS or 80SPS output data rate

• Operation supply voltage range: 2.6 ~ 5.5V

• Operation temperature range: -40 ~ +85℃ •

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Analog to Digital Converter

PCB Schematic

Caitlin Henderson (EE)

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Analog to Digital Converter PCB

Caitlin Henderson (EE)

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Overall Schematic

Bradley Spencer (EE)

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Bradley Spencer (EE)

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Bradley Spencer (EE)

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Bradley Spencer (EE)

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Software Comparison and Selection

Justin Wu

Computer

Engineering

Stephanny Bais

Computer

Engineering

Stephanny Bais (CPE)

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IDE Comparison & Selection

Why Arduino IDE?

Easy to use; allows for quick programming
Familiarity
Extensive library availability
Compatible with ESP32, HX711 sensor, Nextion Monitor

Stephanny Bais (CPE)

Features	Arduino IDE	VSCode with �PlatformIO
Complexity	Beginner-friendly (simplified programming)	Intermediate to Advanced, can choose to work with Arduino or ESP-IDF framework
Supported Languages	Arduino C++	C/C++
Library Availability	Extensive Arduino libraries	Supports both Arduino and ESP-IDF libraries (and other native libraries for different platforms)
Board Compatibility	Very broad, including Arduino dev boards, ESP series, STM32 Series and more	Very broad, including both Arduino dev boards, ESP Series, STM32 series and more

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Programming Language Comparison & Selection

Why Arduino C++?

Familiarity
Arduino IDE supported language
Compatible with ESP32
Compatible with Nextion Monitor
Hardware Control

	C	C++	Arduino C++	Rust
Complexity	High Complexity	High Complexity	Less Complex	High Complexity
Real-Time System Suitability & Control Over Hardware	Great	Great	Great	Great
Team Familiarity	High	Some	High	None

Stephanny Bais (CPE)

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Communication Protocols Comparison & Selection

Why UART & I2C?

UART (Monitor)

Simplicity
Only 2 pins needed
No need for high-speed & dedicated clock signal

I2C (Sensor)

Required by HX711 Sensor
Less wires/pins required compared to SPI
Allows for multiple devices if needed in the future

	UART	SPI	I2C
Protocol Type	Asynchronous	Synchronous	Synchronous
Number of Wires	2 (TX, RX)	4 (MOSI, MISO, SCK, CS)	2 (SDA, SCL)
Data Rate	Low (< 1 Mbps)	High (>=10 Mbps)	Moderate (<1 Mbps)
Complexity	Simple (requires pre-set baud rate; minimal error-checking)	More Complex (device increases = complexity increases)	Simple (Chaining multiple devices is easy)
Drawbacks	Limited in range, speed, and multi-device support	Requires more wiring, interference	Delays, limited data rate, bus contention
Ideal Use	Simple, P2P Communication	High-speed data transfer between multiple devices	Communication with multiple devices

Stephanny Bais (CPE)

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Software Flowchart

The following software flowchart outlines the main processes.

They are 4 sections in our programming:

Setup/Calibration
Data Calculation and Display
Alarm System
Monitor/Buttons

Justin Wu (CPE)

Now here we have our software flowchart which gives a basic overview of our programming’s processes and workflow. There are 4 main sections in our current code, the first being the initial set-up of the system, where upon start-up the strain gauge is tared to 0. The user is then prompted to add a known weight, as the HX711 sensor will require it in order to properly calibrate the weight factor. Once this is complete and the weight is removed, the user is then prompted to enter the container size, which will vary depending on what container is attached.

With the set-up complete, we go into the main loop of our programming, which consists of constantly taking in the sensor data every 2 secs and then calculating the blood weight volume and average flow rate. If the blood volume passes a certain threshold or the average flow rate is at a dangerous level, the alarm system will trigger, playing audio and flashing lights to alert the clinicians and prompting them to intervene if necessary. This alarm system will then require the users to deactivate it to continue the main process. In addition, the user will be able to press a variety of buttons during the main process to interface with the system, such as pausing, clearing, and even stopping the programming.

This is all subject to change depending on the desires of Orlando Health as well as any improvements discovered by the team.

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PWM Audio Alarm: Three Stages

Stage 1 (Initial Alert, 0-15 secs):

Set frequency with oscillating volume
Alert clinicians without sudden jumpscare

Stage 2 (Persistent Warning, 15-30 secs):

Volume set at loud magnitude, additional alert sound included
Begin to urge clinicians to deal alarm system

Stage 3 (Emergency Siren, >30 secs):

Cacophony of varying volume and frequencies
Persuasion of acknowledgement through pure annoyance

Different Frequency for Volume Alarm vs Flow Rate Alarm

Justin Wu (CPE)

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UI

Stephanny Bais (CPE)

(1) Prompts user to input a known weight value for calibration.

(2) Prompts user to insert the known weight in the canister for calibration

(3) Prompts user to choose the canister size

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UI

Stephanny Bais (CPE)

(4) Default/Main page

(5) Mode 1

(6) Mode 2

After calibration, the screen on the left will appear, updating the values at a rate specified by our client.

A key customer requirement for our UI is to make the flow rate and its indicator obvious. Since operating rooms already contain many devices, the data displayed on the monitor must easily be understood by clinicians “at a glance”.

In the left image, the red upward-pointing arrow indicates that the flow rate threshold set has been reached. CAlong with this visual cue, an alarm message appears to indicate which threshold was met and how to disable the alarm. An accompanying audio alarm must be acknowledged by a clinician. The number on the top right corner is the flow rate (or FR) in mL/s. When the flow rate is within the normal range, the value is displayed in white. If the volume threshold is reached instead, a similar set of indicators and alarms will appear.��Just below the flow rate is the value of the total volume (or TV) measured in mL.

The number in pink below this is the elapsed time (or ET) of the procedure.

Finally, the bottom right number in green is the canister size (or CS) chosen in the beginning of the procedure.

As a stretch goal, we added different display modes as shown in the 2nd and 3rd images.

In the image labeled ‘Mode 1’, the layout is similar to the main page, but the indicators change. A red upward-pointing arrow indicates an increasing flow rate, while a green downward-pointing arrow shows a decreasing rate. When thresholds are reached, a distinct visual indicator is displayed.

The other mode is a simplified version that shows only the flow rate and total volume. When thresholds are reached in this mode, the only indication is a color change in the values, along with the corresponding alert message.

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CAD Modeling - System Enclosure

Caitlin Henderson (EE)

The system enclosure will house the monitor screen, buttons, and all electrical components aside from the load cell.

Pictured

Side button - Power On/Off
Bottom Left button - ALARM STOP
4 bottom buttons - Toggle buttons

Not Pictured

Back of case will allow for power cord
Back of case will allow for corded connection to ADC
Back of case will house the flush mounted speaker

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CAD Modeling - Load Cell ADC Mount

ADC Mount and Lid

Caitlin Henderson (EE)

To eliminate exposed wires from the load cell a box to house the ADC was added.

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Prototyping and Testing - Hardware

Bradley Spencer (EE)

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Prototyping and Testing - Software

Stephanny Bais (CPE)

To test our code, we assembled our components as shown in the image on the left.

The canister is attached to the load cell. Attached to the load cell is the strain gauge also containing the sensor.

This was connected to our breadboard as shown on the bottom right image. Also attached to our breadboard is the monitor.

On our breadboard, we have buttons to test button functionalities. Each button has a designated function. For instance, the ‘pause’ button should temporarily halt tracking, and pressing it again should resume tracking.

Our breadboard also includes a buzzer as a placeholder for our speaker. The purpose of this is to ensure that the buzzer activates when thresholds are reached (which would occur at every 500mL increment).

These were initially tested through the serial monitor.

To test sensor readings, known weights were placed in the canister, and the displayed values were compared to the expected readings in the serial monitor.

To test the monitor, we added a preset number in the Nextion Editor, and the code must update it to a different number.

Both tests were done successfully.

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Prototyping and Testing - Difficulties & Successes (HW)

Difficulties

All button pins were originally left floating
First iteration of voltage regulators malfunctioned due to frequency mismatch
The sensor data lines had too much resistance and caused data to decay

Successes

3.3V regulators are 92% efficient
Strain Gauge has a minimum of 98% accuracy
Readings from Sensor/ADC are within <5% variance

Bradley Spencer (EE)

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Prototyping and Testing - Difficulties & Successes (SW)

Difficulties

Obtaining accurate data from sensor
Proper communication with monitor
Long latency of hardware and software buttons
Long latency of data calculation and display
Long latency of alarm system trigger and acknowledgement

Successes

Implementation of Arduino libraries and functions
Implementation of RTOS and Interrupts
Addition of error handling
Overall latency reduced across the board

Justin Wu (CPE)

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Administrative Content - Work Distribution

Bradley Spencer	Primary: MCU PCB, Voltage Regulator PCB, Monitor Implementation, Secondary: Speaker Implementation, Sensor Implementation, Button Implementation




Caitlin Henderson	Primary: Project Manager, Button Implementation, Strain Gauge Assembly, Monitor and ADC Mount CAD Modeling, Speaker Research & Implementation, ADC PCB Secondary: Audio Implementation Programming, Voltage Regulator PCB




Justin Wu	Primary: Programming (Audio Implementation, Alarm System, RTOS, Delays/Interrupts), Prototyping (Debugging & Testing) Secondary: Data Reading & Logic, Error Handling, PCB Testing, Breadboard Testing




Stephanny Bais	Primary: Programming (UI Implementation, Data Reading & Logic, Button Functionalities), Breadboard Testing Secondary: Error Handling, PCB & Regulator Testing, Delays/Interrupts

Stephanny Bais (CPE)

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Administrative Content - Budget

Caitlin Henderson (EE)

Orlando Health is the sponsor for our project. We did aim to keep the device as low cost but high quality as possible.

Some components and parts were ordered in multiples to allow for testing and possible faulty parts.

Component	Name/Part Number	Est. Cost ($)	Budget ($)	Cost ($)/each	Qty.	TOTAL COST
Filament	Printer Filament [F1]	$81.00	$100.00	$16.00	2	$32.00
Arm	Arm with Mount [F2]	$389.00	$400.00	$36.00	1	$36.00
ESP 32	ESP-WROOM-32 [F3]	$20.00	$20.00	$5.00	5	$25.00
Strain Gauge	BF350-3AA BF350 350 ohm [F4]	$9.00	$10.00	$5.00	5	$25.00
ADC chip	ADC081C021CIMKX/NOPB [F5]	$3.00	$5.00	$33.00	3	$99.00
Signal Amplifier	WWZMDiB HX711 Load Cell [F6]	$7.00	$10.00	$6.99	1	$6.99
Speaker	SP-3605 [F7]	$3.00	$10.00	$3.17	3	$9.51
Screen 1	RVT101HVSNWN00 [F8]	$236.00	$250.00	$100.00	1	$100.00
Screen 2	Nextion 7.0" LCD NX8048P070-011R-Y [F12}	$130.00	$250.00	$117.99	1	$117.99
Button - Alarm	XB7NA81 [F9]	$35.00	$50.00	$14.87	2	$29.74
Button - Toggle	PB6B2RS3M1CAL00S500 [F13]	$10.00	$15.00	$8.69	20	$173.80
Switch - Power	TIANWIDJEW Rocker Switch	$10.00	$20.00	$10.00	2	$20.00
Power cable	Power Cord Straight 8 Foot 16 Gauge [F10]	$30.00	$50.00	$15.99	1	$15.99
PCB	PCB [F11]	$50.00	$50.00	$15.20	5	$76.00
	Parts	Estimated Cost	Budget	Total Number of items	Overall Cost
Total	14 Parts	$1,953.00	$2,240.00	58	$767.02

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Thank You!