The Infant CPR Assistive Feedback System was developed for the BECU Arduino Competition, hosted by the Biomedical Engineering Course Union (BECU) at Toronto Metropolitan University.
Event Details
- Theme: Design a healthcare-focused prototype using Arduino
- Date: November 16, 2024
- Time: 9:00 AM – 7:00 PM
- Location: DCC103, Toronto Metropolitan University
- Team: Sansar Sharma, Rican Williams, Suffian Ali, Krish Patel
- Provided Components: Arduino Mini, OLED display, pressure sensor, three LEDs, buzzer, jumper wires, breadboard, and basic enclosure materials
What we built:
A real-time CPR training aid for infants that provides pressure, heart rate rhythm, and timing feedback from a pressure sensor wrapped around an infant mannequin, an OLED display for force feedback, three LEDs (green/red for rhythm sync; white for timing cue), and a buzzer for alerts.
- Real-time pressure feedback (too low / in range / too high) on an OLED.
- Rhythm guidance with green (in sync) and red (out of sync) LEDs.
- Timing cue via white LED for steady compression cadence.
- Audible alert using a buzzer for unsafe pressure.
- Built and demonstrated within a single-day competition using Arduino IDE (C/C++).
| Component | Purpose |
|---|---|
| Arduino Mini | Microcontroller for reading sensors and driving outputs |
| Pressure Sensor | Measures CPR compression force |
| OLED Display | Visual feedback: pressure status (low / good / high) |
| 3× LEDs (Green, Red, White) | Rhythm correctness + timing cue |
| Buzzer | Audible warning for unsafe pressure |
| Breadboard, Resistors, Wires | Allowing embedded code to connect to electrical components |
| Cardboard Enclosure | To cover the electrical wiring of the arduino system |
| Infant Mannequin (provided) | Training surface for CPR demonstration |
- IDE: Arduino IDE
- Language: C/C++
- Key Libraries:
Wire.h,Adafruit_SSD1306.h,Adafruit_GFX.h - Source File:
BECU_Arduino_Competition_Code.ino
💡 The full firmware is in this repository as
BECU_Arduino_Competition_Code.ino.
├── images/
│ ├── farTopView.jpg
│ ├── insideView.jpg
│ ├── otherSideView.jpg
│ ├── sideView.jpg
│ └── topView.jpg
│
├── video/
│ └── demoVideo.mp4
│
├── BECU_Arduino_Competition_Code.ino
└── README.md
- Open
BECU_Arduino_Competition_Code.inoin Arduino IDE. - Select Board/Port for your Arduino Mini (or compatible board).
- Install Libraries (if missing):
- Adafruit SSD1306
- Adafruit GFX
- Upload the sketch to the board.
- Place the pressure sensor on/around the infant mannequin’s chest wrap/strap.
- Observe Feedback:
- OLED shows force status.
- Green/Red LEDs reflect rhythm correctness.
- White LED blinks for timing cadence.
- Buzzer beeps if pressure is too high.
Inside View
Side View
Other Side View
Top View
Far Top View (Full Setup with Infant Mannequin)
Click above to watch the full demo on YouTube.
- The mannequin used appears designed for medical training; our sensor was strap-mounted to read compression force.
- LED logic: Green/Red indicate in/out-of-sync with target rhythm; White provides timing cue.
- OLED reports force status for immediate corrective feedback.
Special thanks to the Biomedical Engineering Course Union (BECU) at Toronto Metropolitan University for organizing this competition and providing components and mentorship.