Embedded Files
HaptiDrum V1
Front
Front
with switch and XIAO ESP32S3
Back
Back
with BNO085 IMU
module case and on body demo
Companion Application
Pairing Interface
Pairing Interface
Scan: scan all devices with prefix name "HaptiDrum" by using bluetooth.
Find: connect the device and vibrate 3 sec.
Connect: confirm connect the device.
Drum hit detected
Drum hit detected
Vibration & sound feedback
Icon drum changes color to yellow for indicating
PCB Design for Electrical Muscular Stimulation
EMS Circuit
EMS Circuit
1. Generate controllable constant current with maximum 10mA for target muscle.
2. Buck booster and flyback transformer step up 3.7V from battery to 35V.
3. Linear control for the current by MCU from 0-10mA.
4.Generate pulse electrical signals at approximately 100 Hz to stimulate muscle contraction.
Future Work
Future Work
Multi-drum positions / hitting force detection
Interface update for multi-drums
EMS feedback PCB embodiment
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