2 layers148 × 84.5 mm
Panel daisy
ohmtech-rdi/eurorack-blocks
Software to Hardware Prototyping for Eurorack using C++, Max/Gen~ or Faust
259 parts410
2 layers15.2 × 31.1 mm
LABC xxx 0.1
fablab-wue/LABCLow-cost Analog Breadboard Computer
- Size
- 15.2 × 31.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 21
- Pads
- 63
- Tracks, vias
- 21, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 14 Aug 2023
- Updated
- 1 Jun 2024
Overview
LABC xxx 0.1 is an open-source printed circuit board by fablab-wue, from the fablab-wue/LABC repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 15.2 × 31.1 mm with 26 parts on 21 nets, routed with 21 tracks and 0 vias.
It is built around the TL072. Its parts include 9 resistors, 8 diodes, 5 connectors, 2 capacitors and 1 IC.
Main components
1README
README.mdLow-cost - Anolog - Breadboard - Computer (LABC)
UNDER CONSTRUCTION
Analog computers have a history of over 80 years and are still fascination in this modern times. Starting with 100000 DM in the past, the price drops to under 1000 € today. The projects goal is to offer a starter kit about 100 €.
The "Low-cost Anolog Breadboard Computer" - short LABC [ˈlæbˈsi] - is a open source / open hardware project to offer breadboard based development to hobbyists, pupils, FabLabs and hacker-spaces for education and fun.
The breadboard is populated with singe purpose (adder, integrator, ...) tiny electronic boards (PCB) - the so called compute-modules. Each module is powered via its pin-headers and provides the inputs and outputs to the breadboard. The connection between the modules is done by jumper-wires on the breadboard.
By positioning the compute modules in data flow order (graphic layout) it is easier to follow the schematics and for most connections shorter cables (jumper-wires) can be used.
The control module provides all necessary voltages and hosts a Raspberry Pi Pico (W) for control, ADC and DAC. An USB-connection can provide a connected PC with measured data. This builds the bridge to simple hybrid computing.
See the WIKI for more details
Design Study
To see how it look and how it can be handled a design study was made. Playing with the dummies gives more expiriance about size, pinout, components, cabeling on breadboard, ...
Note: The 'PCBs' are made of lasered paper sheets and are not functional.
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100k* | Resistor_SMD:R_0603_1608Metric | R4, R5, R7, R8, R9 |
| 5 | D_TVS | Diode_SMD:D_SOD-323_HandSoldering | D1, D2, D3, D7, D8 |
| 4 | 1M* | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R6 |
| 3 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1, J2, J4 |
| 2 | BZX84Cxx | Package_TO_SOT_SMD:SOT-23 | D4, D6 |
| 2 | C | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 1 | Conn_01x01_Male | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J5 |
| 1 | Conn_01x05_Male | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | LED_Dual_Bidirectional | LED_THT:LED_D3.0mm | D5 |
| 1 | SW_SPDT | Jumper:SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm_NumberLabels | SW1 |
| 1 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
Questions
How big is the LABC xxx 0.1 PCB?
It measures 15.2 × 31.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LABC xxx 0.1 use?
26 parts, built around the TL072. 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 LABC xxx 0.1 KiCad files?
From the fablab-wue/LABC repository on GitHub, at the commit this page was made from: the board is KiCad/DesignExample/LABC_xxx_0.1.kicad_pcb and its schematic KiCad/DesignExample/LABC_xxx_0.1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LABC xxx 0.1 design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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