HapticBreathe is a wearable haptic feedback device for people living with Empty Nose Syndrome (ENS). It measures chest expansion via a load cell connected to an elastic chest strap and delivers vibrotactile feedback through a vibration motor mounted on the body-facing side of the device based on feedback algorithms.
This repository accompanies the research paper and contains:
- 3D models — STL files for the housing and strap attachments
- Gerber files — PCB manufacturing files
- Microcontroller firmware — Arduino source code
To build the device, the following components are required:
| Component | Description |
|---|---|
| Arduino Nano compatible microcontroller board | e.g. 5V/16MHz, CH-340G chip |
| Load cell | 12.7 × 12.7 × 80 mm, 5 kg |
| ADC module | HX711, 24-bit analog-to-digital converter for load cells |
| Flat coin vibration motor | 10 × 2.7 mm, DC 3V |
| Transistor | MOSFET, IRFZ44N, N-channel, 49A/55V |
| LED (green) | 5mm round dome, through-hole |
| Resistor | LED current-limiting resistor, 220Ω |
| Tactile push button | 6×6mm, 4-pin through-hole, 50mA/12VDC |
| Screw terminal | 2-pin × 3 |
| Elastic webbing straps with Velcro fasteners | For the chest and shoulder straps |
| Custom PCB | Gerber files included in this repository |
| 3D printed housing | Printed from the STL files included in this repository |
The components are mounted as shown in the image above.