HardLabs

I2C MIC

goran-mahovlic·ulx3s-extensions·I2S_MIC/I2C_MIC.kicad_pcb

I2C MIC PCB layout, top view — open source board by goran-mahovlic

About the I2C MIC PCB

I2C MIC is an open source PCB design by goran-mahovlic, published on GitHub under the MIT license. It is a 2-layer board measuring 17.3 × 16.5 mm, with 8 components from 7 distinct parts.

By type, the board carries 3 resistors, 2 microphones, 2 capacitors and 1 connector.

It belongs with the audio designs in this gallery.

From the project

PMOD boards for ULX3S

[x] RFM9X [x] OV7670 [x] GPDI Input/output [x] MLX90640 [x] I2S microphone [x] DB9 [x] SD Card [x] MAX31855 [x] ENC28J60 [o] I2S Audio [o] MIDI in/out [o] Poteciometers [o] VGA [ ] Rotary encoder [ ] DC Motor with encoder [ ] LCD - DS90CF363B [ ] CH376 [ ] CAN bus [ ] LVDS [x] SX1257 - Already in development [x] RaspiCam - https://github.com/daveshah1/pmods

Helping hands: Marvin(Radiona), Emard(Radiona), Prizma(Radiona), mmicko, Drew Fustini (OSH Park), SnapEDA, smunaut(tnt)

I2C MIC, from the project README
From the project README

I2C MIC bill of materials (BOM)

8 components, 7 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
I2S_PMOD
J1
2
SPH0641LU4H
MK1, MK2
1
CC0603KRX7R8BB224
100nF
Yageo
C1
1
CC0603KRX7R8BB224
220pF
Yageo
C2
1
RC0603FR-07510RL
1K
Yageo
R1
1
AC0603FR-074K7L
68R
Yageo
R2
1
AC0603FR-073K3L
1K
Yageo
R3

I2C MIC design files

The KiCad project lives in the goran-mahovlic/ulx3s-extensions repository on GitHub; these links point at the commit this page was built from.

I2C MIC: common questions

How big is the I2C MIC PCB?

The I2C MIC measures 17.3 × 16.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the I2C MIC?

8 components, from 7 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the I2C MIC design files?

From the goran-mahovlic/ulx3s-extensions repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the I2C MIC design in my own project?

Yes, under the terms of its MIT license, which goran-mahovlic chose for the repository.

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