2 layers52 × 36 mm
Seven segment counter
Hirusha785/seven-segment-display-counter-pcb
🔢 A hands-on KiCad PCB design project featuring a seven-segment counter circuit, built from schematic design to PCB routing and 3D visualization.
11 partsMIT
2 layers105.1 × 34.2 mm
This is a repository where I add my PCB and Electronics Design
- Size
- 105.1 × 34.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 17
- Pads
- 48
- Tracks, vias
- 109, 7
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 11 Apr 2026
- Updated
- 14 Aug 2026
Overview
Labz is an open-source printed circuit board by Bulldozeru, from the Bulldozeru/Hardware-and-Electronics repository on GitHub. It is a 2-layer board of 105.1 × 34.2 mm with 10 parts on 17 nets, routed with 109 tracks and 7 vias.
It is built around the CD4033BE, LTS-6980HR and NE555P. Its parts include 3 resistors, 1 IC, 1 diode and 1 connector.
Main components
3
CD4033BE
PDIP-16-55℃~+125℃ 1 125ns 3V~18V 6MHz Asynchronous Divide-by-10 Rising Edge Synchronous Up Counter PDIP-16 Counters, Dividers ROHSTexas InstrumentsCounters, Dividers
LTS-6980HR
DIP-100.56 1 19.05mmx12.6mmx8mm 7 Segment 75mW Common Cathode Red DIP-10 LED Segment Displays ROHSLite-OnLED Segment Displays
NE555P
DIP-80℃~+70℃ 100kHz 10mA 4.5V~16V DIP-8 555 Timers / Counters ROHSTexas InstrumentsTimers / Counters
README
University-Labs/Counter-and-Display/README.mdLabs and Projects
This is a repository where I add my PCB and Electronics Design I recently started a course about PCB Design in KiCAD and I upload the labs and projects I make in the course here
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | R_0402_1005Metric | Resistor_SMD:R_0402_1005Metric | R1, R2, R3 |
| 1 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | CD4033B | Package_DIP:DIP-16_W7.62mm | CD4033B |
| 1 | C_Disc_D8.0mm_W2.5mm_P5.00mm | Capacitor_THT:C_Disc_D8.0mm_W2.5mm_P5.00mm | 10nF |
| 1 | LTS-6980HR | Display_7Segment:7SegmentLED_LTS6760_LTS6780 | AFF1 |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | NE555P |
| 1 | PhoenixContact_GMSTBA_2,5_2-G_1x02_P7.50mm_Horizontal | Connector_Phoenix_GMSTB:PhoenixContact_GMSTBA_2,5_2-G_1x02_P7.50mm_Horizontal | J1 |
| 1 | SW_CW_GPTS203211B | Button_Switch_THT:SW_CW_GPTS203211B | U4 |
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Questions
How big is the Labz PCB?
It measures 105.1 × 34.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Labz use?
10 parts, built around the CD4033BE, LTS-6980HR and NE555P. 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 Labz KiCad files?
From the Bulldozeru/Hardware-and-Electronics repository on GitHub, at the commit this page was made from: the board is University-Labs/Counter-and-Display/Labz.kicad_pcb and its schematic Analog Timer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Labz design in my own project?
Its repository states no licence, so its author keeps all rights: ask Bulldozeru before reusing the design.