2 layers65.5 × 98 mm
Floppy Board v3.1
FloppyO1/Floppy_Boards
Floppy Boards are a series of breakout boards for rapid prototyping which I developed as an alternative of Arduino.
339 parts5CERN-OHL-S-2.0
2 layers43 × 72 mm
Floppy Voltmeter Clock
virgoss/Floppy_Voltmeter_Clock- Size
- 43 × 72 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 30
- Pads
- 186
- Tracks, vias
- 147, 33
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 5 Mar 2025
- Updated
- 2 Mar 2025
Overview
Floppy Voltmeter Clock is an open-source printed circuit board by virgoss, from the virgoss/Floppy_Voltmeter_Clock repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 2-layer board of 43 × 72 mm with 49 parts on 30 nets, routed with 147 tracks and 33 vias.
It is built around the DS3231MZ+ and H7233-1. Its parts include 8 capacitors, 7 resistors, 7 connectors, 3 ICs and 3 switches. It belongs with the lEDs and displays boards and the STM32 boards of this library.
Main components
2
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
H7233-1
SOT-89-3-40℃~+85℃ 1 15V 170mV@(100mA) 1uA 3.3V 400mA 40dB@(1kHz) Fixed Over Current Protection Positive SOT-23-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSShanghai Siproin MicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R5, R6, R7 |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4, H5, H6 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C4, C5, C8 |
| 4 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C3, C6, C7 |
| 2 | VAL** | Panelization:mouse-bite-3mm-slot | mouse-bite-3mm-slot, mouse-bite-3mm-slot |
| 1 | 15K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 3V3_POWER_LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | BUTTONS | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J1 |
| 1 | BUTTONS IN BOARD | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J3 |
| 1 | DS3231M | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U3 |
| 1 | G*** | kibuzzard-6786B82B | kibuzzard-6786B82B |
| 1 | G*** | kibuzzard-675B2D7A | kibuzzard-675B2D7A |
| 1 | G*** | kibuzzard-675B2D2F | kibuzzard-675B2D2F |
| 1 | G*** | kibuzzard-675B2EC4 | kibuzzard-675B2EC4 |
| 1 | G*** | kibuzzard-677D17B8 | kibuzzard-677D17B8 |
| 1 | G*** | kibuzzard-675B2D96 | kibuzzard-675B2D96 |
| 1 | G*** | kibuzzard-6786B9A9 | kibuzzard-6786B9A9 |
| 1 | G*** | kibuzzard-675B2D7E | kibuzzard-675B2D7E |
| 1 | G*** | kibuzzard-675B2D1E | kibuzzard-675B2D1E |
| 1 | H7233-1 | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | HOURS | _MIA footprint:SMD BUTTON 5.1x5.1 | SW3 |
| 1 | LED_ALIVE | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 1 | LOGO | LOGO | G*** |
| 1 | MINUTES | _MIA footprint:SMD BUTTON 5.1x5.1 | SW2 |
| 1 | Q&J CR2032-BS-6-1 | Battery:BatteryHolder_Keystone_1060_1x2032 | BT1 |
| 1 | RESET_B | _MIA footprint:SMD BUTTON 5.1x5.1 | SW1 |
| 1 | ST-Link | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | STM32G030F6Px | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | hours | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J4 |
| 1 | minutes | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J5 |
| 1 | seconds | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J6 |
| 1 | ~ | _MIA footprint:USB-C (only power) | J2 |
Questions
How big is the Floppy Voltmeter Clock PCB?
It measures 43 × 72 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Floppy Voltmeter Clock use?
49 parts, built around the DS3231MZ+ and H7233-1. 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 Floppy Voltmeter Clock KiCad files?
From the virgoss/Floppy_Voltmeter_Clock repository on GitHub, at the commit this page was made from: the board is HARDWARE/Floppy voltmeter clock/Floppy voltmeter clock.kicad_pcb and its schematic HARDWARE/Floppy voltmeter clock/Floppy voltmeter clock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Floppy Voltmeter Clock design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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