4 layers50 × 6 mm
2 layers
Hairclip
Samir-Rashid/smartclip1Intelligent wearable hairclip
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 28
- Pads
- 130
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 12 Oct 2024
- Updated
- 19 Nov 2024
Overview
Hairclip is an open-source printed circuit board by Samir-Rashid, from the Samir-Rashid/smartclip repository on GitHub, published under the AGPL-3.0 licence. It is a 2-layer board with 18 parts on 28 nets.
It is built around the NRF52840-CKAA-R and MIC5365-3.3YD5-TR. Its parts include 9 capacitors, 2 ICs, 2 connectors, 2 crystals and 1 resistor. It belongs with the nRF52 and nRF5x boards of this library.
Main components
2
NRF52840-CKAA-R
WLCSP-94(3.5x3.6)-40℃~+85℃ -95dBm 1.7V~5.5V 2.4GHz 2.4GHz~2.4835GHz 2Mbps 4.82mA 6.26mA 8dBm Bluetooth、802.15.4 SPI、USB、UART、ADC、I2S、PDM、PWM Supports RSSI function、CRC check function、DMA function transceiver WLCSP-94(3.5x3.6) RF Transceiver ICs ROHSNordic SemiconRF Transceiver ICs
MIC5365-3.3YD5-TR
TSOT-23-5-40℃~+125℃@(Tj) 1 150mA 200uVrms 3.3V 310mV@(150mA) 39uA 5.5V 70dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive TSOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdsmartclip
Intelligent wearable hairclip. A testbed for wearable computing such as health monitoring devices. Supports Tock OS and the Thread protocol.
- low cost ($5)
- low power (3µA)
- up to 10 years of battery life
- operates without internet access
- open source foundation for secure medical devices
- Medical Device Innovation and Assistive Technologies
- Pathway 1: Improve existing medical devices and assistive technologies (e.g., enhancing usability and sustainability, improving affordability of assistive devices).
- Pathway 2: Design new medical devices and assistive solutions (e.g., innovative devices addressing unmet healthcare needs, new assistive technologies for specific disabilities).
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 100n | Capacitor_SMD:C_0402_1005Metric | C6, C8 |
| 2 | 12pF | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 2 | 4u7 | Capacitor_SMD:C_0805_2012Metric | C7, C9 |
| 1 | 0pF5 | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | 0pF8 | Capacitor_SMD:C_0402_1005Metric | C5 |
| 1 | 220R | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 32MHz | Oscillator:Oscillator_SMD_Abracon_ASCO-4Pin_1.6x1.2mm | X1 |
| 1 | 32kHz768 | Oscillator:Oscillator_SMD_Abracon_ASCO-4Pin_1.6x1.2mm | X2 |
| 1 | 4nH7 | Inductor_SMD:L_0402_1005Metric | L1 |
| 1 | Conn_ARM_SWD_TagConnect_TC2030 | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J2 |
| 1 | Conn_Coaxial_Small | Connector_Coaxial:U.FL_Hirose_U.FL-R-SMT-1_Vertical | J1 |
| 1 | LED | LED_SMD:LED_0201_0603Metric | D1 |
| 1 | MIC5365-3.3YD5 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | NC | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | NRF52840-CKAA-R | Package_DFN_QFN:Nordic_AQFN-73-1EP_7x7mm_P0.5mm | U1 |
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Questions
What parts does the Hairclip use?
18 parts, built around the NRF52840-CKAA-R and MIC5365-3.3YD5-TR. 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 Hairclip KiCad files?
From the Samir-Rashid/smartclip repository on GitHub, at the commit this page was made from: the board is hardware/hairclip/hairclip.kicad_pcb and its schematic hardware/hairclip/hairclip.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hairclip design in my own project?
Its repository publishes it under the AGPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).