2 layers78.4 × 48.2 mm
2 layers21.3 × 52.5 mm
Haptic bracelet
plerros/Haptic-Bracelet- Size
- 21.3 × 52.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 51
- Pads
- 198
- Tracks, vias
- 282, 37
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 25 Mar 2025
- Updated
- 5 Sep 2025
Overview
Haptic bracelet is an open-source printed circuit board by plerros, from the plerros/Haptic-Bracelet repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 21.3 × 52.5 mm with 47 parts on 51 nets, routed with 282 tracks and 37 vias.
It is built around the DW01A, FS8205A and TP4056, with the SS34 and AO3401A among its other parts. Its parts include 18 resistors, 11 capacitors, 6 diodes, 4 ICs and 4 connectors. It belongs with the wearables boards and the RP2040 boards of this library.
Main components
5
DW01A
SOT-23-6L-40℃~+85℃ 1 2.5V 300mV~10V 3uA 4.3V Protection IC Support SOT-23-6L Battery Management ROHSPUOLOPBattery ManagementFS8205A
SOT-23-6-55℃~+150℃ 1.2V 1.5W 2 N-Channel 20V 31.5mΩ@2.5V 466pF 5.7nC@4.5V 58pF 65pF 6A SOT-23-6 MOSFETs ROHSTECH PUBLICMOSFETs
TP4056
ESOP-8-40℃~+85℃ 1 1A 35uA 4.2V 4V~6.5V Charging IC Lithium Battery Support Support 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 ESOP-8 Battery Management ROHSUMWBattery Management
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1k | Resistor_SMD:R_0402_1005Metric | R2, R3, R4, R8, R13, R16 |
| 5 | 0.1 uF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C4, C8, C11 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R10, R12, R14, R15, R17 |
| 3 | SS34 | Diode_SMD:D_SMA | D7, D8, D9 |
| 2 | 10 nF | Capacitor_SMD:C_0402_1005Metric | C6, C9 |
| 2 | 10 uF | Capacitor_SMD:C_0402_1005Metric | C2, C10 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R6, R7 |
| 2 | Conn_01x02 | Connector_JST:JST_SH_SM02B-SRSS-TB_1x02-1MP_P1.00mm_Horizontal | J2, J4 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 2.2 uF | Capacitor_SMD:C_0402_1005Metric | C5 |
| 1 | 20k | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 22 uF | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 330 | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | 5k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | CHRG | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | Conn_01x05_Socket | Connector_JST:JST_SH_SM05B-SRSS-TB_1x05-1MP_P1.00mm_Horizontal | J6 |
| 1 | DW01A | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | FS8205A | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | FULL | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | PAIR | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | PAIR | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW1 |
| 1 | RaspberryPi_Pico_W | Module:RaspberryPi_Pico_Common_THT | A1 |
| 1 | SW_SPDT | Button_Switch_THT:SW_SPDT_PCM12 vertical | SW2 |
| 1 | TP4056 | Package_SO:Texas_HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.4x3.1mm_ThermalVias | U1 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J5 |
| 1 | ~ | Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm_EP3x3mm_ThermalVias | U2 |
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Questions
How big is the Haptic bracelet PCB?
It measures 21.3 × 52.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Haptic bracelet use?
47 parts, built around the DW01A, FS8205A, TP4056 and SS34. 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 Haptic bracelet KiCad files?
From the plerros/Haptic-Bracelet repository on GitHub, at the commit this page was made from: the board is kicad/haptic-bracelet/haptic-bracelet.kicad_pcb and its schematic kicad/auxiliary/auxiliary.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Haptic bracelet design in my own project?
Its repository publishes it under the GPL-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).