2 layers94 × 73.7 mm
Pcb lab
wyu31/TECHIN-514-FinalProject
This GitHub repository is for my TECHIN-514 final project and all my related files will be uploaded and updated to it.
20 parts1
2 layers134.6 × 70.1 mm
This GitHub repository is for my TECHIN-514 final project and all my related files will be uploaded and updated to it.
- Size
- 134.6 × 70.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 24
- Pads
- 85
- Tracks, vias
- 193, 15
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 17 Jan 2024
- Updated
- 6 Mar 2024
Overview
Pcb lab is an open-source printed circuit board by wyu31, from the wyu31/TECHIN-514-FinalProject repository on GitHub. It is a 2-layer board of 134.6 × 70.1 mm with 22 parts on 24 nets, routed with 193 tracks and 15 vias.
It is built around the MCP4921-E/P, PAM8301AAF and TXB0102DCU. Its parts include 7 capacitors, 4 ICs, 3 connectors, 2 diodes and 1 resistor.
Main components
3
MCP4921-E/P
PDIP-8-40℃~+125℃ 1 12 12LSB 2.7V~5.5V 4.5us Integrated buffer、Power-on reset、Power-down mode、Programmable gain SPI Voltage Buffer PDIP-8 Digital to Analog Converters (DAC) ROHSMicrochip TechnologyDigital To Analog Converters (DAC)
PAM8301AAF
SOT-23-6-40℃~+85℃ 1-Channel 1.5Wx1@8Ω 2.5V~5.5V 4mA 50dB 78dB 88% Class D Enable/shutdown function、Filterless architecture SOT-23-6 Audio Amplifiers ROHSDiodes IncorporatedAudio Amplifiers
TXB0102DCU
VSSOP-8-0.5mm-40℃~+85℃ 1 1.2V~3.6V 1.65V~5.5V 100Mbps 2 Auto Direction Detection Bidirectional CMOS CMOS Tri-State VSSOP-8-0.5mm Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
README
README.mdTECHIN-514-FinalProject
This GitHub repository is for my TECHIN-514 final project and all my related files will be uploaded and updated to it.
System Architecture with Diagram
Slide 1 - Introduction
Project Title
Finger Drumbeat
Explanation
This is an IoT device set to add drum beats using hand gestures, allowing users to engage in existing music.
Generally, I want to achieve:
- Different fingertip accelerations produce different Stepper-motor-driven gauge needle swing accelerations and different drum beat loudnesses (with Speaker & Amplifier).
- Different components of the drum (Bass Drum, Tom-Tom Drum, Snare drum, Crash Cymbal, Ride Cymbal, Hi-Hat) are played under different gestures.
- OLED screen displays the component currently being played.
- LED Array randomly displays rhythm animation
- Button can switch the random animations on the LED Array
General Sketch
Slide 2 - Sensor Device
In this part, the enclosure is divided into two parts: fingertip and wrist. The fingertip enclosure contains the MPU6050, and the wrist enclosure contains the ESP32 processor and battery.
MPU6050 and ESP32 will detect and analyze diffeerent fingertip accelerations for different needle swing accelerations and drumbeat volumes.
MPU6050 and ESP32 will also detect and analyze different gestures as different drum components (such as ass Drum, Tom-Tom Drum, Snare drum, Crash Cymbal, Ride Cymbal, Hi-Hat).
- Sensor: MPU6050 accelerometer and gyroscope to detect hand accelerations and gestures
- Processor: XIAO-ESP32-S3
- Wireless link: XIAO-ESP32-S3 has a bluetooth module inside
- Power: Lithium Ion Polymer Battery Ideal For Feathers
- Enclosure:(Shown on Sketch)
- Custom PCB: will be based on the sensor, battery & enclosure size
Slide 3 - Display Device
The shaking acceleration of the stepper motor pointer depends on the acceleration of the finger; the intensity of the sound and enhanced sound also depends on the acceleration of the finger.
The LED array will randomly play flowing animations to reflect the linkage of audio and vision; touch the button to switch animations.
The OLED screen will display the names of the components of the drum set selected under the current gesture.
- Stepper-motor-driven gauge needle: Show the intensity and volume of the drumming. More forceful gestures could push the needle further, indicating a higher intensity and volume.
- Processor: XIAO-ESP32-S3
- LED Array: LED Array randomly displays rhythm animation
- Button: Capacitive touch button to switch animations
- Enclosure:(Shown on Sketch)
- Custom PCB: will be based on the sensors & enclosure size
- Battery: Lithium Ion Polymer Battery Ideal For Feathers
- Displays: OLED - Text info of the type of drum sound currently selected
Slide 4 - Figure & Diagram
Device Communication Figure
Workflow Diagram
Display Device Arch
PCB Lab
Processer: XIAO-ESP32-S3
Sensor: XIAO-ESP32-S3
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C3, C6, C7 |
| 1 | 10u | Capacitor_Tantalum_SMD:CP_EIA-1608-08_AVX-J_Pad1.25x1.05mm_HandSolder | C5 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 220u | Capacitor_THT:CP_Radial_D8.0mm_P3.80mm | C8 |
| 1 | Battery | Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J1 |
| 1 | Battery+ | TestPoint:TestPoint_Pad_D2.5mm | J2 |
| 1 | Battery- | TestPoint:TestPoint_Pad_D2.5mm | J3 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | MCP4921 | Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm | U3 |
| 1 | PAM8301 | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | R_Potentiometer | Potentiometer_THT:Potentiometer_Piher_PC-16_Single_Horizontal | RV1 |
| 1 | SSD1306 | Library:128x64OLED | Brd1 |
| 1 | SW_SPDT | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | SW1 |
| 1 | Speaker | Connector_JST:JST_NV_B02P-NV_1x02_P5.00mm_Vertical | LS1 |
| 1 | Stepper_Motor_bipolar | Library:X27_stepper_motor | M1 |
| 1 | TXB0102DCU | Package_SO:VSSOP-8_2.4x2.1mm_P0.5mm | U2 |
| 1 | ~ | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Horizontal | D1 |
| 1 | ~ | Library:XIAO_ESP32_SENSE | U1 |
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Questions
How big is the Pcb lab PCB?
It measures 134.6 × 70.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pcb lab use?
22 parts, built around the MCP4921-E/P, PAM8301AAF and TXB0102DCU. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Pcb lab KiCad files?
From the wyu31/TECHIN-514-FinalProject repository on GitHub, at the commit this page was made from: the board is pcb_lab/pcb_lab.kicad_pcb and its schematic pcb_lab/pcb_lab.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pcb lab design in my own project?
Its repository states no licence, so its author keeps all rights: ask wyu31 before reusing the design.