Counter
About the Counter PCB
Counter is an open source PCB design by imihajlow, published on GitHub. It is a 2-layer board measuring 53 × 91 mm, with 188 components from 15 distinct parts.
By type, the board carries 102 diodes, 43 resistors, 35 transistors, 5 connectors and 3 capacitors.
From the project
A digital clock made of N-MOSFETs, diodes, and resistors.
Counter bill of materials (BOM)
188 components, 15 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 35 | Q_NMOS_GSD | SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +27 |
| 1 | CLK | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Carry | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Power | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Q | IDC-Header_2x04_P2.54mm_Vertical | J4 |
| 1 | ~RST | PinHeader_1x02_P2.54mm_Vertical | J5 |
| 4 | LED | LED_0805_2012Metric_Castellated | D1, D2, D3, D4 |
| 98 | D | D_MiniMELF | D5, D6, D7, D8, D9, D10, D11, D12 +90 |
| 1 | .1u | C_0805_2012Metric | C1 |
| 1 | 10u 16v | CP_EIA-3528-21_Kemet-B_Pad1.50x2.35mm_HandSolder | C2 |
| 1 | 1n | C_0805_2012Metric | C3 |
| 4 | 330 | R_0805_2012Metric | R1, R2, R3, R4 |
| 34 | 20k | R_0805_2012Metric | R5, R6, R7, R8, R9, R10, R11, R12 +26 |
| 4 | 10k | R_0805_2012Metric | R38, R39, R40, R41 |
| 1 | 40k | R_0805_2012Metric | R43 |
Counter design files
The KiCad project lives in the imihajlow/discrete-clock repository on GitHub; these links point at the commit this page was built from.
Counter: common questions
How big is the Counter PCB?
The Counter measures 53 × 91 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Counter?
188 components, from 15 distinct parts. The full bill of materials is listed on this page.
Where can I download the Counter design files?
From the imihajlow/discrete-clock repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Counter design in my own project?
The repository has no license, so all rights stay with imihajlow. Use it as a reference, and ask the author before reusing the design.
