2 layers144.1 × 108.1 mm
2 layers80 × 100 mm
OperationBaldr
Hardware7253/OperationBaldrA VFD Clock
- Size
- 80 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 101
- Pads
- 222
- Tracks, vias
- 352, 28
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 18 Jun 2024
- Updated
- 28 Jan 2025
Overview
OperationBaldr is an open-source printed circuit board by Hardware7253, from the Hardware7253/OperationBaldr repository on GitHub. It is a 2-layer board of 80 × 100 mm with 20 parts on 101 nets, routed with 352 tracks and 28 vias.
It is built around the 74HC595 and ULN2003A. Its parts include 10 ICs, 2 connectors and 1 resistor. It belongs with the lEDs and displays boards of this library.
Main components
2README
README.mdOperation Baldr
A VFD clock
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 10k | Resistor_THT:R_Array_SIP9 | RN1, RN2, RN3 |
| 3 | 74HC595 | Package_DIP:DIP-16_W7.62mm_Socket | U6, U7, U8 |
| 3 | ULN2003A | Package_DIP:DIP-16_W7.62mm_Socket | U4, U5, U9 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J2 |
| 1 | Conn_01x10_Pin | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J1 |
| 1 | ~ | Custom:STM32_blackpill | U2 |
| 1 | ~ | Custom:ZD1880 | U10 |
| 1 | ~ | Custom:RTC | U3 |
| 1 | ~ | Custom:DC_step_up | U1 |
Questions
How big is the OperationBaldr PCB?
It measures 80 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OperationBaldr use?
20 parts, built around the 74HC595 and ULN2003A. 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 OperationBaldr KiCad files?
From the Hardware7253/OperationBaldr repository on GitHub, at the commit this page was made from: the board is cad/pcb/OperationBaldr.kicad_pcb and its schematic cad/pcb/OperationBaldr.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OperationBaldr design in my own project?
Its repository states no licence, so its author keeps all rights: ask Hardware7253 before reusing the design.
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