

OpenHAK beta
place for all the OHAK hardware
- Size
- 38.1 × 25.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 65
- Pads
- 185
- Tracks, vias
- 327, 37
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 21 May 2017
- Updated
- 13 Oct 2017
Overview
OpenHAK beta is an open-source printed circuit board by OpenHAK, from the OpenHAK/OpenHAK_beta_hardware repository on GitHub. It is a 2-layer board of 38.1 × 25.4 mm with 41 parts on 65 nets, routed with 327 tracks and 37 vias.
It is built around the MAX30100EFD+, BMI160 and MCP73831. Its parts include 14 resistors, 13 capacitors, 6 ICs, 3 diodes and 2 transistors.
Main components
3MAX30100EFD+
SMD-14P,2.8x5.6mmI2C Integrated ambient light cancellation (ALC)、Built-in temperature sensor SMD-14P,2.8x5.6mm Specialized Sensors ROHSAnalog DevicesHeart Rate SensorsBMI160
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 SensortecAccelerometersMCP73831
UncategorisedMicrochip Technology
README
README.mdOpenHAK Hardware
Place for all the OpenHAK hardware
OpenHAK Beta Hardware Tour
Yes, we know that it needs improvement. This is what we got so far.


OpenHAK Accessories
We are building a pile of hardware accessories for you to play with. The first batch is all about screens!
These libraries are custom cut to work with the OpenHAK system
Stay tuned for more fun stuff!
License
The hardware, and all files in this repo are released under Creative Commons Share-alike 4.0.
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 10K | Capacitors_SMD:C_0603 | R1, R2, R9, R10, R11, R14, R16 |
| 7 | 1uF | Capacitors_SMD:C_0603 | C2, C4, C6, C8, C9, C12, C13 |
| 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 | Q2, Q3 |
| 1 | 130R | Capacitors_SMD:C_0603 | R5 |
| 1 | BMI160 | Solutions:LGA_2.5x3 | U4 |
| 1 | Battery | OpenBCI:JST_RA_SMT | 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 | OpenBCI:RFD77101 | U1 |
Questions
How big is the OpenHAK beta PCB?
It measures 38.1 × 25.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OpenHAK beta use?
41 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 OpenHAK beta KiCad files?
From the OpenHAK/OpenHAK_beta_hardware repository on GitHub, at the commit this page was made from: the board is KiCAD Files/OpenHAK_beta.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the OpenHAK beta design in my own project?
Its repository states no licence, so its author keeps all rights: ask OpenHAK before reusing the design.
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