ST4Breakout
About the ST4Breakout PCB
ST4Breakout is an open source PCB design by tvarnish, published on GitHub. It is a 2-layer board measuring 48.3 × 30.5 mm, with 7 components from 4 distinct parts.
Other key parts include the TIL196. By type, the board carries 4 resistors, 2 connectors and 1 IC.
It belongs with the dev boards & breakouts and science & space designs in this gallery.
From the project
An open-source, ST-4 autoguider breakout board for simple Raspberry Pi and Arduino telescope mount control :telescope: :milky_way:
To trigger an axis, pull the corresponding input header pin HIGH (5V). This breakout board can be used for dual-axis control at a single slewing speed (set by the motor drive handset).
I had the v0.1 board printed with JLCPCB, as seen in the image above.
All of the KiCAD files (and gerbers) for the breakout can be found in the /ST4Breakout directory.
Component | Quantity ----------|--------- RJ12 Socket | 1 100 Ohm Resistor | 4 TIL196 Phototransistor Optocoupler | 1 16-pin IC DIP Socket | 1 Single-row 2.54 mm Header Pins | 5 pins
Main components on the ST4Breakout
ST4Breakout bill of materials (BOM)
7 components, 4 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TIL196 | TIL196_Optocoupler_THT | IC1 |
| 1 | Header | PinHeader_1x05_P2.54mm_Vertical | J1 |
| 1 | RJ12 | RJ12_Female_THT_Connector | J2 |
| 4 | 100 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1, R2, R3, R4 |
ST4Breakout design files
The KiCad project lives in the tvarnish/ST4Breakout repository on GitHub; these links point at the commit this page was built from.
ST4Breakout: common questions
How big is the ST4Breakout PCB?
The ST4Breakout measures 48.3 × 30.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ST4Breakout?
7 components, from 4 distinct parts. The full bill of materials is listed on this page.
Where can I download the ST4Breakout design files?
From the tvarnish/ST4Breakout repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the ST4Breakout design in my own project?
The repository has no license, so all rights stay with tvarnish. Use it as a reference, and ask the author before reusing the design.
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