CE351 Lab 2023 Spring
Lab 2 - A Heart Rate
Monitoring System Task 4
Name: Simon Gorman
Email:
sbgorman@fortlewis.edu
A Heart Rate Monitoring System Task 4
Generate
a BOM (bill of materials) spreadsheet to include all the parts that you
need for the project and the cost. Plan for a workshop for high school
students.
1. How long is the workshop?
Either a 4-hour workshop in one day or two 2-hour sessions in two days.
2. What are the final products students are going to build?
A mobile oximeter with a 9V power source, Arduino Nano, MAX30102 sensor, and SSD1306 OLED display.
3. What are the cost of materials for each student?

Figure 01: Plan 1 - Cost of parts for 1 and 20 students
Figure
1 displays Plan 1, which is the cost per student if
we gave them USB cables (type B to mini-USB and type B to type A) and
an Arduino R3 board (not including the shipping costs for Digikey and
Amazon). The total cost for one student is approximately $116.73.
Figure 2 displays another option, Plan 2, without the USB cables and Arduino Uno R3:

Figure 02: Plan 2 - Cost of parts for 1 and 20 students without the USB cables and Arduino Uno R3
If going with Plan 2, one student would cost approximately $81.09.
4. How much would you charge for each student?
Going with Plan 1, I would charge each student $175.00 which is a profit of $58.27.
Going with Plan 2, I would charge each student $122.00 which is a profit of $40.91.
|
# of Students
|
Charge
|
Profit
|
Profit %
|
Plan 1
|
1
|
$175.00
|
$58.27
|
50%
|
Plan 2
|
1
|
$122.00
|
$40.91
|
50%
|
Table 01: Profits from Plan 1 and Plan 2 from a single student
5. How much profit you can earn from this workshop if you have 20 students registered.
In Fig.01, Plan 1, the total costs for parts for 20 students is $2339.34 (not including the shipping costs for Digikey and Amazon) if we included the USB cables and Arduno Uno R3. If we charged each student $175.00, then our total profit would be $1160.66.
In Fig.02, Plan 2, the total costs for parts for 20 students is $1626.54 (not including the shipping costs for Digikey and Amazon) if we excluded the USB cables and Arduno Uno R3. If we charged each student $122.00, then our total profit would be $813.46.
|
# of Students
|
Charge
|
Profit
|
Profit %
|
Plan 1
|
20
|
$175.00
|
$1160.66
|
50%
|
Plan 2
|
20
|
$125.00
|
$813.46
|
50%
|
Table 02: Profits from Plan 1 and Plan 2 from 20 students
6. Design a flyer for this event to attract participants. The drawings and art on the flyer must be original work.

Figure 03: Oximeter Workshop Flyer
7. Design a webpage to include a Dummy Paypal option on it for customers to checkout. A tutorial on Paypal App. Use you CE351 page to do this.
You can also use GPay or other Apps as long as it works.