4 layers36.5 × 69 mm
Storm tracker
solderable/storm-tracker-hardware
Open-source-ready Storm Tracker hardware design, documentation, BOM, and manufacturing package
102 parts58
4 layers60 × 30 mm
BinaryClock3
kwame-y/BinaryClockA rechargeable pocket clock displaying HH:MM:SS with 20 LEDs, built around an ATtiny1616, a constant-current LED driver, and a real-time clock. Three edge-mounted buttons provide the planned MODE, PLUS, and MINUS controls, with USB-C for charging.
- Size
- 60 × 30 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 58
- Nets
- 61
- Pads
- 200
- Tracks, vias
- 334, 163
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 17 Oct 2026
- Updated
- 18 Oct 2026
Overview
BinaryClock3 is an open-source printed circuit board by kwame-y, from the kwame-y/BinaryClock repository on GitHub. It is a 4-layer board of 60 × 30 mm with 58 parts on 61 nets, routed with 334 tracks and 163 vias.
It is built around the ATTINY1616-MN, IS31FL3239-QFLS4-TR and BQ25186DLHR, with the RV-3028-C7, APT1608LSECK/J3-PRV and USB4105-GF-A among its other parts. Its parts include 20 diodes, 14 resistors, 9 capacitors, 4 ICs and 3 switches. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
6
ATTINY1616-MN
QFN-20-EP(3x3)-40℃~+105℃ 1.8V~5.5V 10bit 16KB 18 20MHz 256Byte 2KB 8 Bit 8bit AVR Built-in FLASH QFN-20-EP(3x3) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
IS31FL3239-QFLS4-TR
QFN-32(4x4)-40℃~+125℃ 2.7V~5.5V 24 31.5kHz 38mA 7% Built-in PWM、I2C Short Circuit Protection、Over-Temperature Protection (OTP)、LED open-circuit protection QFN-32(4x4) LED Drivers ROHSISSILED Drivers
BQ25186DLHR
WSON-10-40℃~+125℃ 1 15nA 1A 2V 3.6V~18V 4.65V Charging IC I2C Lithium Battery、LiFePO4 Battery Support Support WSON-10 Battery Management ROHSTexas InstrumentsBattery Management
RV-3028-C7
DFN-8(1.5x3.2)DFN-8(1.5x3.2) Real Time Clocks ROHSMicro CrystalReal Time Clocks
APT1608LSECK/J3-PRV
0603-40℃~+85℃ 1.8V 100mcd 120° 2mA 625nm 640nm 84mW Discrete Diode Red Water Clear 0603 LED Indication - Discrete ROHSKingbrightLED Indication - Discrete
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
README
Hardware/README.mdHardware
Open BinaryClock3.kicad_pro in KiCad 10. This is a snapshot of the saved BinaryClock3 project supplied on October 17, 2026.
The source schematic and project settings were copied byte-for-byte. The packaged PCB differs only in four 3D model path strings, changed to ${KIPRJMOD}/3dmodels/... so those models travel with the project. No electrical connections, geometry, routing, or placement were changed. The original files remain untouched.
Custom_Libraries includes the four custom symbol definitions extracted from this schematic's embedded symbol cache and five footprint files copied from the adjacent Custom Models folder. The project library tables use relative paths. These are packaging operations, not validation of the custom parts. The board's embedded footprints remain authoritative for the saved layout; DRC reports two library-footprint mismatches.
Install the standard KiCad 10 symbol, footprint, and 3D-model libraries as well. Model assignments are incomplete in the saved design, so the included renders omit some component bodies.
source-sha256.json records the original three source-file hashes. reports contains the checks run on this packaged snapshot. See VALIDATION.md before using it for fabrication.
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | RED | Custom Models:LED_APT1608LSECK_J3-PRV | D1, D2, D3, D4, D5, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20 +4 |
| 4 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C6, C7, C10 |
| 3 | 100kΩ | Resistor_SMD:R_0402_1005Metric | R8, R10, R12 |
| 3 | 10kΩ | Resistor_SMD:R_0402_1005Metric | R6, R7, R11 |
| 3 | SW_Push | Custom Models:SW_B3U-3000P | SW1, SW2, SW3 |
| 2 | 10µF | Capacitor_SMD:C_0805_2012Metric | C4, C5 |
| 2 | 4.7kΩ | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 2 | 5.1kΩ | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 15kΩ | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 1MΩ | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 1uF | Capacitor_SMD:C_0201_0603Metric | C11 |
| 1 | 1µF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 2.2µF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 330kΩ | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 47kΩ | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | ATtiny1616-M | Package_DFN_QFN:VQFN-20-1EP_3x3mm_P0.4mm_EP1.7x1.7mm | U1 |
| 1 | BQ25186DLHR | Custom Models:IC_BQ25185DLHR | U4 |
| 1 | Conn_01x03 | Connector_JST:JST_SH_SM03B-SRSS-TB_1x03-1MP_P1.00mm_Horizontal | J2 |
| 1 | GND | TestPoint:TestPoint_Pad_1.0x1.0mm | TP3 |
| 1 | IS31FL3239-QFLS4-TR | Custom Models:QFN40P400X400X80-33N-D | U2 |
| 1 | RTC_CLKOUT | TestPoint:TestPoint_Pad_1.0x1.0mm | TP4 |
| 1 | RV-3028-C7 | Package_SON:MicroCrystal_C7_SON-8_1.5x3.2mm_P0.9mm | U3 |
| 1 | SYS_PWR | TestPoint:TestPoint_Pad_1.0x1.0mm | TP2 |
| 1 | UPDI | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1 |
| 1 | USB4105-GF-A | Custom Models:USB4105_GCT | J1 |
Questions
How big is the BinaryClock3 PCB?
It measures 60 × 30 mm and has 4 copper layers, 1.6 mm thick.
What parts does the BinaryClock3 use?
58 parts, built around the ATTINY1616-MN, IS31FL3239-QFLS4-TR, BQ25186DLHR and RV-3028-C7. 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 BinaryClock3 KiCad files?
From the kwame-y/BinaryClock repository on GitHub, at the commit this page was made from: the board is Hardware/BinaryClock3.kicad_pcb and its schematic Hardware/BinaryClock3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BinaryClock3 design in my own project?
Its repository states no licence, so its author keeps all rights: ask kwame-y before reusing the design.
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