Updates

Week 1

4/2: The team was formed.

4/3: Created the project website and google drive.          Yuchu

4/4: The project direction is set: A air-drumming system with haptic feedback.          All

Week 2

4/8: Created Overview and System Design sections, and uploaded contents.          Yuxuan

4/8: Project presentation.          All

4/10: Created Proposal section and uploaded the proposal.          Enjia

Week 3

4/16: Purchased: IMUs, MCUs, Batteries, Swites, Vibration Motors, LRAs.          Hongrui

4/17: Purchased: TENS EMS machine.          Yuchu

4/18: Test on IMU sensor, tried to collect data but failed.          Enjia 

4/19: Fixed the problem where the IMU could not connect to the MCU.          Hongrui

4/20: Created PRD section and uploaded contents.          Yuxuan

4/20: Found some related works.          Yuxuan; Hongrui

4/20: Revised the PRD.           Hongrui

Week 4

4/21: Review PRD.          All

4/22: Design the User Interface layout and logic.          Hongrui

4/22: Researched on some EMS circuit papers and products.          Yuxuan

4/23: Soldered the MCU with IMU, switch, vibration motor and battery.          Hongrui

4/23: Designed the circuit for HaptiDrum EMS.          Yuxuan

4/24: Designed the pairing interface of the app.          Hongrui

4/24: Tested the BLE communication between the ΜCU and phone.          Hongrui

4/24: Looked up for suitable components for HaptiDrum EMS.          Yuxuan

4/25: Designed the drum logic, and wrote test code for it.          Enjia & Yuchu

4/26: Designed CAD for case and lid.          Hongrui

4/26: Designed the PCB layout.          Yuxuan

4/27: Printed the case and the lid,  and assembled with the main components.          Hongrui

Week 5

4/29: Drum logic code design updated. Enjia & Yuchu

4/29: Uploaded the Rapid Prototype.          Enjia

4/29: Added soldering, 3D-printing case, and application to the Rapid Prototype.          Hongrui

4/29: Added PCB to the Rapid Prototype.          Yuxuan

Week 6

5/5: TensorFlow ML code adjusted and tested.          Yuchu

5/5: App function of drum icon indication updated.          Hongrui

5/6: Rapid Prototype page updated for presentation.          All

5/6: Link to Video 1 page created and video uploaded.          Enjia & Hongrui

5/6: EMS circuit design.          Yuxuan

Week 7

5/12: Design multiple drums logic. Enjia & Hongrui

5/12: App development. Hongrui

5/12: Test EMS circuit. Hongrui & Yuxuan

5/12: Overall test. All

5/12: Debug drums test circuit. Yuchu

5/16: Test EMS circuit. (The hand was lifted up by electricity, first success!)          Hongrui & Yuxuan

Week 8

5/19: Test on new MCU nRF52840. Hongrui

5/19: Test on DRV2605L motor driver with LRA. Hongrui

5/19: Design power circuit for PCB. Yuxuan

5/20: Add a bass drum and test multiple devices. Hongrui

5/21: Add sound functionality for app. Hongrui

5/21: Integrated power, EMS, motor driver, DAC for PCB. Yuxuan & Hongrui

5/22: Code logic update (BLE).          Enjia & Yuchu

5/23: Submit the PCB file (30mm*42mm) to JLC for fabrication. Yuxuan

Week 9

5/26: Foot device Case Design and Testing.          Hongrui

5/28: App development. Hongrui

5/29: Report & references All

Week 10

6/3: PCB Arrive.          All

6/3: PCB Assembly with components.          Hongrui & Yuxuan

6/4: PCB Debugging.          Yuxuan

6/5: PCB Function Tests.          All 

Week 11

6/10: Final Presentation          All 

6/10: Demo Video          All 

6/12: Final Report          All 

6/12: ECE 542 additional 2 pages Yuxuan