4 layers38.1 × 25.4 mm
2 layers38.1 × 25.4 mm
OHAK 130
biomurph/OHAK_Hardware1Place for OHAK prototypes
- Size
- 38.1 × 25.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 54
- Nets
- 65
- Pads
- 207
- Tracks, vias
- 352, 38
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 12 Jan 2019
- Updated
- 15 Sep 2020
Overview
OHAK 130 is an open-source printed circuit board by biomurph, from the biomurph/OHAK_Hardware repository on GitHub. It is a 2-layer board of 38.1 × 25.4 mm with 54 parts on 65 nets, routed with 352 tracks and 38 vias.
It is built around the MAX30100EFD+, BMI160 and MCP73831. Its parts include 14 capacitors, 14 resistors, 8 switches, 6 ICs and 3 diodes.
Main components
3
MAX30100EFD+
SMD-14P,2.8x5.6mmI2C Integrated ambient light cancellation (ALC)、Built-in temperature sensor SMD-14P,2.8x5.6mm Specialized Sensors ROHSAnalog DevicesHeart Rate Sensors
BMI160
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 10uA 16bit 1KB IMU (accelerometer + gyroscope) Motion event detection、Synchronization and timestamp SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps LGA-14(2.5x3) Accelerometers ROHSBosch SensortecAccelerometers
MCP73831
UncategorisedMicrochip Technology
README
README.mdOHAK_Hardware
Place for OHAK prototypes
Parts
54| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 1uF | Capacitors_SMD:C_0603 | C2, C4, C6, C8, C9, C12, C13, C14 |
| 8 | C_1206 | Capacitors_SMD:C_1206 | S1, S2, S3, S3, S3, S4, S4, S4 |
| 7 | 10K | Capacitors_SMD:C_0603 | R1, R2, R9, R10, R11, R14, R16 |
| 4 | Watch_Pin_50mil | Solutions:Watch_Pin_50mil | W1, W2, W3, W4 |
| 3 | 0.1uF | Capacitors_SMD:C_0603 | C1, C7, C10 |
| 3 | 10uF | Capacitors_SMD:C_0603 | C3, C5, C11 |
| 2 | 1M | Capacitors_SMD:C_0603 | R7, R8 |
| 2 | 30R | Capacitors_SMD:C_0603 | R12, R17 |
| 2 | 470 | Capacitors_SMD:C_0603 | R13, R15 |
| 2 | NCP551 | TO_SOT_Packages_SMD:SOT-23-5 | U3, U6 |
| 2 | Q_NMOS_GSD | TO_SOT_Packages_SMD:SOT-23 | Q1, Q2 |
| 1 | 130R | Capacitors_SMD:C_0603 | R5 |
| 1 | BMI160 | Solutions:LGA_2.5x3 | U4 |
| 1 | Battery | Connectors_JST:JST_SH_SM02B-SRSS-TB_02x1.00mm_Angled | BT1 |
| 1 | CONN_01X10 | Solutions:4u-0201GDVE06 | P1 |
| 1 | D_Schottky | Capacitors_SMD:C_0603 | D2 |
| 1 | Dialight_R_G_LED | Solutions:0606_Bi-Color | D3 |
| 1 | Led_RGB_CA | Solutions:CLMVB-FKA-CFHEHLCBB7a363 | D1 |
| 1 | MAX30100 | Solutions:MAX30100 | U2 |
| 1 | MCP73831 | TO_SOT_Packages_SMD:SOT-23-5 | U5 |
| 1 | USB_OTG | Solutions:10118193_microUSB | P2 |
| 1 | rfd_77101 | Solutions:RFD77101 | U1 |
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Questions
How big is the OHAK 130 PCB?
It measures 38.1 × 25.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OHAK 130 use?
54 parts, built around the MAX30100EFD+, BMI160 and MCP73831. 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 OHAK 130 KiCad files?
From the biomurph/OHAK_Hardware repository on GitHub, at the commit this page was made from: the board is OHAK_130.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the OHAK 130 design in my own project?
Its repository states no licence, so its author keeps all rights: ask biomurph before reusing the design.