Busreader
About the Busreader PCB
Busreader is an open source PCB design by ifilot, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 48.3 × 27.9 mm, with 16 components from 7 distinct parts.
Other key parts include the 74HC245. By type, the board carries 8 diodes, 4 resistors, 2 connectors, 1 IC and 1 capacitor.
From the project
Modular 8-bit computer built with TTL logic units to create a "Simple as Possible" system
This project showcases the design and construction of a modular 8-bit computer built with TTL logic units. The core principle behind the project is to create a "Simple as Possible" system, focusing on simplicity, modularity, and compactness.
- TTL Logic-Based Design: The computer is built using traditional TTL (Transistor-Transistor Logic) components, adhering to a fundamental, hands-on approach to computing. - Modular Architecture: Designed for modularity, each functional unit (ALU, registers, memory, control logic, etc.) is implemented as a separate module, allowing for easy debugging…
Main components on the Busreader
Busreader bill of materials (BOM)
16 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC245 | SOIC-20W_7.5x12.8mm_P1.27mm | U1 |
| 1 | BUS | PinHeader_1x10_P2.54mm_Vertical | J1 |
| 1 | SIGNALS | PinHeader_1x10_P2.54mm_Vertical | J2 |
| 8 | LED_Small | LED_0805_2012Metric | D1, D2, D3, D4, D5, D6, D7, D8 |
| 1 | C | C_0805_2012Metric | C1 |
| 2 | 10k | R_Array_Convex_4x0603 | RN1, RN2 |
| 2 | 330 | R_Array_Convex_4x0603 | RN3, RN4 |
Busreader design files
The KiCad project lives in the ifilot/sap-smd repository on GitHub; these links point at the commit this page was built from.
Busreader: common questions
How big is the Busreader PCB?
The Busreader measures 48.3 × 27.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Busreader?
16 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the Busreader design files?
From the ifilot/sap-smd repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Busreader design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which ifilot chose for the repository.
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