Seven Segment Counter
About the Seven Segment Counter PCB
Seven Segment Counter is an open source PCB design by martinbros, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 48 × 40 mm, with 34 components from 9 distinct parts.
Other key parts include the CD4026BNSR. By type, the board carries 18 resistors, 7 jumpers, 4 transistors, 3 connectors, 1 IC and 1 capacitor.
From the project
Art piece demonstrating the power grid
This art piece makes visual the living and breathing nature of the national power grid in real time. Once powered on, it monitors the grid's pulse by counting the beats, acting as a guage of the grid's current performance. If the art piece loses power, the displayed progress is lost. Counting restarts after power is restored, and the cycle resets from zero.
All of circuitry that makes up the art piece (with the exception of power supplies) is analog. Every digit is controlled by a sequential logic decade counter IC. Each digit's IC recives a clock signal from the prior digit and provides a…
Main components on the Seven Segment Counter
Seven Segment Counter bill of materials (BOM)
34 components, 9 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CD4026BNSR CD4026B | SO-16_5.3x10.2mm_P1.27mm | U1 |
| 4 | SI1926DL-T1-BE3 | SOT-363_SC-70-6 | Q1, Q2, Q3, Q4 |
| 1 | 105313-2108 ~ | Molex_Nano-Fit_105313-xx08_1x08_P2.50mm_Horizontal | J1 |
| 2 | TBL009V-254-04GY-2GY ~ | TBL009V-254-04 | J2, J3 |
| 7 | ~ | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5, JP6, JP7 |
| 1 | KAM21BR71H104KM 0.1u | C_0805_2012Metric | C1 |
| 7 | CR0805-FX-3000ELF 14 | R_Axial_DIN0309_L9.0mm_D3.2mm_P2.54mm_Vertical | R1, R2, R3, R4, R5, R6, R7 |
| 9 | CRM0805-FX-1001ELF 1k | R_0805_2012Metric | R8, R9, R10, R11, R12, R13, R14, R17 +1 |
| 2 | CRM0805-FX-1002ELF 10k | R_0805_2012Metric | R15, R16 |
Seven Segment Counter design files
The KiCad project lives in the martinbros/Quantifying-the-Current repository on GitHub; these links point at the commit this page was built from.
Seven Segment Counter: common questions
How big is the Seven Segment Counter PCB?
The Seven Segment Counter measures 48 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Seven Segment Counter?
34 components, from 9 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Seven Segment Counter design files?
From the martinbros/Quantifying-the-Current repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Seven Segment Counter design in my own project?
Yes, under the terms of its GPL-3.0 license, which martinbros chose for the repository.
