4 layers119 × 63.2 mm
OpenChordM1
FugLong/OpenChord
An open-source music device for portable, expressive, and extensible audio creation.
75 parts3MIT
2 layers120 × 50 mm
Binary clock
KacperBizon/rp2040_binary_clockbinary clock with 17 diodes and rtc clock
- Size
- 120 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 87
- Nets
- 81
- Pads
- 281
- Tracks, vias
- 621, 91
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 31 Oct 2025
- Updated
- 17 Apr 2026
Overview
Binary clock is an open-source printed circuit board by KacperBizon, from the KacperBizon/rp2040_binary_clock repository on GitHub, published under the MIT licence. It is a 2-layer board of 120 × 50 mm with 87 parts on 81 nets, routed with 621 tracks and 91 vias.
It is built around the RP2040, W25Q32JVSSIQ and AMS1117-3.3, with the DS3231MZ+, TS-1088-AR02016 and ABM8-272-T3 among its other parts. Its parts include 32 resistors, 19 capacitors, 18 diodes, 5 ICs and 5 switches. It belongs with the lEDs and displays boards and the RP2040 boards of this library.
Main components
7
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q32JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 133MHz 1uA 2.7V~3.6V 20 Years 32Mbit 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
DS3231MZ+
SOIC-8-40℃~+85℃ 2.3V~5.5V I2C Temperature compensation、Backup power management and battery charging、Alarm function、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
TS-1088-AR02016
SMD,4x3mm-30℃~+80℃ 1.6N 100,000 cycles 12V 2mm 3.9mm 3mm 50mA Black Round Button SMD(SMT) Tab SPST Surface Mount,Vertical Without Bracket SMD,4x3mm Tactile Switches ROHSXUNPUTactile Switches
ABM8-272-T3
SMD3225-4P-40℃~+85℃ 10pF 12MHz 50Ω SMD crystal oscillator ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
TYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
README
README.mdrp2040 binary clock
Flashing
- Hold BOOTSEL button while plugging the USB
- mount the device (RPI-RP2)
- Drag the rp2040_binary_clock.uf2 to RPI-RP2
Building from Source (Pico C/C++ SDK)
Prerequisites
- Install CMake and Make
- Install arm-none-eabi-gcc
- Clone the Raspberry Pi Pico SDK, ensure the submodules are initialized and set PICO_SDK_PATH.
Compilation
git clone https://github.com/KacperBizon/rp2040_binary_clock.git
cd rp2040_binary_clock/firmware
mkdir build
cd build
cmake ..
makeOptional resistors
- R4 - 10K - use only when having problems with writing to memory
- R25 - 1K - use only with lithium rechargeable batteries
License & Acknowledgments
This project is distributed under the MIT License.
Third-Party Components:
The firmware/pico_sdk_import.cmake file included in this repository is the intellectual property of Raspberry Pi (Trading) Ltd. and is distributed under the BSD 3-Clause License.
Parts
87| Qty | Value | Footprint | References |
|---|---|---|---|
| 19 | 1k | Resistor_SMD:R_0603_1608Metric | R3, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24 +3 |
| 17 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8, D10, D11, D12, D13, D14, D15, D16, D17 +1 |
| 12 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C5, C6, C7, C8, C9, C10, C11, C12, C13, C18 |
| 7 | 4k7 | Resistor_SMD:R_0603_1608Metric | R26, R27, R28, R29, R30, R31, R32 |
| 4 | MountingHole_2.2mm_M2_DIN965 | MountingHole:MountingHole_2.2mm_M2_DIN965 | MH1, MH2, MH3, MH4 |
| 4 | TS-1088-AR02016 | Button_Switch_SMD:SW_SPST_TS-1088-xR020 | SW1, SW2, SW3, SW4 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C3, C4, C19 |
| 2 | 15p | Capacitor_SMD:C_0603_1608Metric | C14, C15 |
| 2 | 33 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D18 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R25 |
| 1 | 22u | Capacitor_SMD:C_0603_1608Metric | C17 |
| 1 | ABM8-272-T3 | Crystal:Crystal_SMD_Abracon_ABM8G-4Pin_3.2x2.5mm | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | AT24C32_SOIC | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | CR2032_holder | custom_footprints:Battery_Holder_Coin_2032_BS-7 | BT1 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | DNP | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | DS3231M | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U4 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | TIMEZONE_CHANGE | custom_footprints:SW_Slide_8.6x3.8x7.0_P2.54mm | SW5 |
| 1 | TYPE-C-31-M-12 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | P1 |
| 1 | W25Q32JVSS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U2 |
Questions
How big is the Binary clock PCB?
It measures 120 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Binary clock use?
87 parts, built around the RP2040, W25Q32JVSSIQ, AMS1117-3.3 and DS3231MZ+. 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 Binary clock KiCad files?
From the KacperBizon/rp2040_binary_clock repository on GitHub, at the commit this page was made from: the board is binary_clock.kicad_pcb and its schematic binary_clock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Binary clock design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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