I got an opportunity to teach Arduino to the BME graduate class this spring. It was a great experience. Since, it was a hands-on class, the students were expected to do a final project. Here are some of the projects that my students did.
1. Blind Aid
- The basic idea was to use a ultrasonic trasducer as a transmitter and receiver to gauge the distance of the obstacle from the subject.
- A piezo was used whose intensity and pitch increased inversely with distance of the obstacle.
- A vibrating motor was also used to give the subject haptic feedback.
- The entire setup was controlled using Arduino and was mounted on a Bandanna.
2. Arduino-Based Ignition Interlock System
- The project used an alcohol sensor to detect the alcohol content in the driver's breath.
- Depending on the alcohol content Arduino allows or prevents the operator from driving the car by controlling a relay attached to the car's ignition system
3. Arduino Based R-wave detector for Heart -rate calculation
- This project used arduino to count R-R interval of the ECG signal and displayed the instantaneous HR and HR averaged over 1 min on a 16 X 2 LCD screen.
- Patient simulator was used for ECG and grass amplifier was used for amplification.
4. Arduino based Oral cancer detection system
- Oral cancer largely caused due to excessive consumption of oral tobacco affects a large population of people especially in developing countries.
- This project envisioned to estimate the chances of a person having a oral cancer by measuring amount of extension of the jaw and the speed with which the person can open his/her mouth.
- Since these parameters are different between healthy and subjects with high risk of oral cancer it can be used as a preliminary test by the doctor before recommending further testing for the patient.
5. Heart Rate measurement using Electronic Stethoscope
- Since the Electronic stethoscope is highly sensitive to body sounds it can be used to record the sound of the ventricle contraction ( R wave in ECG). This signal is filtered, amplified and fed to Arduino to calculate Heart rate.
- Heart rate is displayed in 16 X 2 LCD.
Thank you class...it was a pleasure working with all of you.....
You can check out all the pics from the project day here
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