Mcu board
About the Mcu board
Mcu board is an open source PCB design by FutureSharks, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 50.5 × 49 mm, with 16 components from 12 distinct parts.
Other key parts include the m0-express and SN74AHCT125DR. By type, the board carries 3 ICs, 2 LEDs, 2 capacitors and 1 connector.
It belongs with the audio and displays & leds designs in this gallery.
From the project
An digitally controlled hi fi preamplifier 🔈🎵
The PCB holds the Adafruit ItsyBitsy M4 Express, connectors and level shifters. The MDAC attenuator, input selector, both encoder panels and power digital power supply all connect to this PCB.
Main components on the Mcu board
Mcu board bill of materials (BOM)
16 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | m0-express | m0-express | U1 |
| 2 | SN74AHCT125DR | SOIC-14_3.9x8.7mm_P1.27mm | U2, U3 |
| 1 | MDAC-INPUT-SELECTOR | Molex_KK-254_AE-6410-06A_1x06_P2.54mm_Vertical | J5 |
| 1 | 3.3V | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | 3.3V1 |
| 1 | 5V | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | 5V1 |
| 1 | ENCODER-PANEL-1 | Molex_KK-254_AE-6410-05A_1x05_P2.54mm_Vertical | ENCODER-PANEL-1 |
| 1 | ENCODER-PANEL-2 | Molex_KK-254_AE-6410-05A_1x05_P2.54mm_Vertical | ENCODER-PANEL-2 |
| 1 | Conn_01x03 | Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | IR1 |
| 2 | R | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | RLED1, RLED2 |
| 1 | V-BAT | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | VBAT1 |
| 2 | LED | LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | LED_3V1, LED_5V1 |
| 2 | C | C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C1, C2 |
Mcu board design files
The KiCad project lives in the FutureSharks/preamp-two repository on GitHub; these links point at the commit this page was built from.
Mcu board: common questions
How big is the Mcu board?
The Mcu board measures 50.5 × 49 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mcu board?
16 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mcu board design files?
From the FutureSharks/preamp-two repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Mcu board design in my own project?
Yes, under the terms of its GPL-3.0 license, which FutureSharks chose for the repository.
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