2 layers6.7 × 6.7 mm
2 layers
PCB design files for the hardware used in Wireless earbuds for low-cost hearing screening
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 55
- Nets
- 89
- Pads
- 264
- Tracks, vias
- 895, 105
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 11 Apr 2023
- Updated
- 23 Apr 2023
Overview
Device is an open-source printed circuit board by MalekItani, from the MalekItani/WirelessHardware repository on GitHub, published under the MIT licence. It is a 2-layer board with 55 parts on 89 nets, routed with 895 tracks and 105 vias.
It is built around the ISP1807-LR-RS, MAX17048G+T10 and MC3419, with the ICS-41352, 10118194-0001LF and FTMH-106-03-L-DV among its other parts. Its parts include 13 resistors, 12 capacitors, 9 ICs, 6 connectors and 1 switch.
Main components
6
ISP1807-LR-RS
SMD,8x8mmMesh networking、Low-power secure connection SMD,8x8mm Bluetooth Modules ROHSInsight SiPBluetooth Modules
MAX17048G+T10
DFN-8-EP(2x2)-40℃~+85℃ 1 2.5V~4.5V 3uA I2C Lithium Battery Not supported Not supported DFN-8-EP(2x2) Battery Management ROHSMaxim Integrated (Analog Devices)Battery Management
MC3419
LGA-12(2x2)-40℃~+85℃ 1.7V~3.6V 16bit 4uA Accelerometer Motion event detection SPI、I2C X,Y,Z ±16g LGA-12(2x2) Accelerometers ROHSMEMSICAccelerometers
ICS-41352
-- MEMS Microphones ROHSTDK InvenSenseMEMS Microphones
10118194-0001LF
SMD-30℃~+80℃ 1 100V 5P Black Female Micro-B USB 2.0 SMD USB Connectors ROHSAmphenolUSB ConnectorsFTMH-106-03-L-DV
SMD,P=1mm-55℃~+125℃ 1.5mm 1.65mm 12P 1mm 1mm 2 2.8A Black Phosphor bronze Pin Header Surface Mount,Vertical Tin SMD,P=1mm Pin Headers ROHSSamtecPin Headers
README
README.mdWireless Hardware
Welcome to the repository containing the circuit design files for wireless earbuds! In this repository, you will find all the necessary files to create your own wireless earbuds, including schematics, PCB layouts, and bill of materials.
Software Dependencies/Requirements
- Kicad version 4.0 or greater.
Repository Contents
This repository contains the following directories:
Schematics: Detailed diagrams of the circuitry used in the wireless earbuds.
PCB layouts: Physical layouts of the printed circuit board used in the wireless earbuds.
Bill of materials: A list of components and materials needed to build the wireless earbuds.
Getting Started
To use these circuit design files, follow the steps below:
1. Install KiCad:
Download and install KiCad version 4.0 or greater from the official website. Choose the appropriate version for your operating system.
2. Customize and Optimize:
Import the schematics and PCB layouts into KiCad to begin customizing and optimizing the design to fit your specific needs. For detailed instructions on using KiCad, consult the official documentation.
Firmware
The repository containing the firmware is located here: https://github.com/antoniog11/OAEbud-firmware
License
This repository is licensed under the MIT License. You are free to use and modify the circuit design files in any way you see fit, as long as you include the appropriate attribution and comply with the terms of the license.
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | BCLK1, BINT1, DIN1, DRV1, MCLK1, MDAT1, SCL1, SDA1, WCLK1, XINT1 |
| 7 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C6, C10, C11, C12, C14 |
| 3 | 0R | Resistor_SMD:R_0402_1005Metric | R9, R10, R13 |
| 3 | 10K | Resistor_SMD:R_0402_1005Metric | R4, R5, R7 |
| 3 | NO | Resistor_SMD:R_0402_1005Metric | R6, R11, R12 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | 50R | Resistor_SMD:R_0402_1005Metric | R1, R3 |
| 2 | DRV8837CDSGR | ZooidsV2:SON50P200X200X80-9N | U5, U6 |
| 2 | ICS-41352 | ZooidsV2:MIC_ICS-41350 | MK1, MK2 |
| 2 | NO | Capacitor_SMD:C_0402_1005Metric | C3, C8 |
| 1 | 100K | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | 10118194-0001LF | ZooidsV2:AMPHENOL_10118194-0001LF | J1 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 180R | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 2.2u | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 450302014072 | ZooidsV2:450302014072 | S1 |
| 1 | B38G3RGB | ZooidsV2:B38G3RGB10D0003H2U1930 | U1 |
| 1 | BATT_TERM | Connector_JST:JST_ACH_BM02B-ACHSS-GAN-ETF_1x02-1MP_P1.20mm_Vertical | P1 |
| 1 | BUCK | ZooidsV2:LM3671TLX-3.3&slash_NOPB | U2 |
| 1 | COIL_TERM | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | P2 |
| 1 | FTMH-106-03-L-DV | ZooidsV2:SAMTEC_FTMH-106-03-L-DV | J2 |
| 1 | ISP1807-LR-RS | ZooidsV2:ISP1807-LR-RS | U8 |
| 1 | LTC4124 | ZooidsV2:LTC4124EV-TRMPBF | U3 |
| 1 | M1_TERM | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | P4 |
| 1 | M2_TERM | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | P3 |
| 1 | MAX17048G+T10 | ZooidsV2:SON50P200X200X80-9N | U4 |
| 1 | MAX98357A | Package_BGA:Maxim_WLP-9_1.595x1.415_Layout3x3_P0.4mm_Ball0.27mm_Pad0.25mm_NSMD | U9 |
| 1 | MC3419 | Package_LGA:LGA-12_2x2mm_P0.5mm | U7 |
| 1 | SPEAKER | ZooidsV2:CUI_CMT-4023S-SMT-TR | SP1 |
Questions
What parts does the Device use?
55 parts, built around the ISP1807-LR-RS, MAX17048G+T10, MC3419 and ICS-41352. 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 Device KiCad files?
From the MalekItani/WirelessHardware repository on GitHub, at the commit this page was made from: the board is pcb/Device.kicad_pcb and its schematic pcb/Device.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Device design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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