Step counter
ostertag·edu8·CAD/step_counter/step_counter.kicad_pcb
About the Step counter PCB
Step counter is an open source PCB design by ostertag, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 80 × 40 mm, with 44 components from 19 distinct parts.
Other key parts include the 74HC161, 74HC109, 74HC08, 74HC02 and 74HC04. By type, the board carries 13 diodes, 13 resistors, 9 capacitors, 8 ICs and 1 connector.
From the project
Educational 8 bit CPU
Main components on the Step counter
Step counter bill of materials (BOM)
44 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC161 | SO-16_3.9x9.9mm_P1.27mm | U1 |
| 2 | 74HC109 | SO-16_3.9x9.9mm_P1.27mm | U2, U3 |
| 2 | 74HC08 | SO-14_3.9x8.65mm_P1.27mm | U4, U5 |
| 2 | 74HC02 | SO-14_3.9x8.65mm_P1.27mm | U6, U7 |
| 1 | 74HC04 | SO-14_3.9x8.65mm_P1.27mm | U8 |
| 1 | Conn_01x14_Pin | PinHeader_2x07_P2.54mm_Horizontal | J1 |
| 1 | F | LED_0805_2012Metric | D1 |
| 1 | E | LED_0805_2012Metric | D2 |
| 1 | I | LED_0805_2012Metric | D3 |
| 1 | CYCLE_END | LED_0805_2012Metric | D4 |
| 1 | IM | LED_0805_2012Metric | D5 |
| 1 | IRQ | LED_0805_2012Metric | D6 |
| 1 | ->F | LED_0805_2012Metric | D7 |
| 1 | ->E | LED_0805_2012Metric | D8 |
| 1 | ->I | LED_0805_2012Metric | D9 |
| 4 | LED | LED_0805_2012Metric | D10, D11, D12, D13 |
| 8 | 100nF | C_0805_2012Metric | C1, C2, C3, C4, C5, C6, C7, C8 |
| 1 | 10uF | C_0805_2012Metric | C9 |
| 13 | 1k | R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R8 +5 |
Step counter design files
The KiCad project lives in the ostertag/edu8 repository on GitHub; these links point at the commit this page was built from.
Step counter: common questions
How big is the Step counter PCB?
The Step counter measures 80 × 40 mm, has 2 copper layers and is 1.600198 mm thick.
How many components are on the Step counter?
44 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Step counter design files?
From the ostertag/edu8 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Step counter design in my own project?
Yes, under the terms of its GPL-2.0 license, which ostertag chose for the repository.
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