Gate in
About the Gate in PCB
Gate in is an open source PCB design by ohmtech-rdi, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 20 × 19 mm, with 8 components from 7 distinct parts.
By type, the board carries 3 connectors, 3 resistors, 1 transistor and 1 diode.
It belongs with the audio designs in this gallery.
From the project
Software to Hardware Prototyping for Eurorack using C++, Max/Gen~ or Faust
This block is a simple gate input. Its design is detailed here.
- This block needs its GND to be connected to the ground. All GND pins are connected internally, - This block needs its 3V3D to be connected to the Daisy Seed 3V3 Digital Power I/O on Pin 38, - The NOP pin can be either connected to: - GND to send zeros to the software implementation, - Cascading the DI signal from another gate-in block, - A pseudo-random predefined signal to detect a jack connection as explained on the Mutable Instruments forums here and implemented here. - The signal OUT is the Gate input signal. It should be…
Gate in bill of materials (BOM)
8 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MMBT3904 | SOT-23 | Q1 |
| 1 | IN | ThonkiconnJack | J1 |
| 1 | OUT | PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | POWER | PinHeader_1x06_P2.54mm_Vertical | J3 |
| 1 | 1N4148 | D_SOD-523 | D1 |
| 2 | 100k | R_0603_1608Metric | R1, R2 |
| 1 | 10k | R_0603_1608Metric | R3 |
Gate in design files
The KiCad project lives in the ohmtech-rdi/eurorack-blocks repository on GitHub; these links point at the commit this page was built from.
Gate in: common questions
How big is the Gate in PCB?
The Gate in measures 20 × 19 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Gate in?
8 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the Gate in design files?
From the ohmtech-rdi/eurorack-blocks repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Gate in design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which ohmtech-rdi chose for the repository.
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Audio out daisy
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Cv in
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Audio in daisy
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Power bus
37 × 21.5 mm9 parts2LCC-BY-SA-4.0405
Regulator daisy
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Gate out
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Slider
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Trim
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Multiplexer
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