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2 layers114.3 × 98.8 mmMystic split40, the printed circuit board in 3D

Mystic split40

Duckle29/MS401

The project uses Ai03s keyswitch library. Many thanks to Ai03 for releasing an awesome keyswitch library with an entirely open license.

Size
114.3 × 98.8 mm
Copper layers
2
Thickness
1.6 mm
Parts
160
Nets
135
Pads
767
Tracks, vias
1,056, 230
Pours
3
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
4 Nov 2019
Updated
3 Oct 2023

Overview

Mystic split40 is an open-source printed circuit board by Duckle29, from the Duckle29/MS40 repository on GitHub, published under the BSD-3-Clause licence. It is a 2-layer board of 114.3 × 98.8 mm with 160 parts on 135 nets, routed with 1,056 tracks and 230 vias.

It is built around the ATMEGA32U4-AU, BAV70 and PRTR5V0U2X, with the 1206L110THYR, CSTNE16M0VH3L000R0 and SJ-43514-SMT-TR among its other parts. Its parts include 32 diodes, 24 resistors, 16 connectors, 6 capacitors and 4 switches. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

8

README

readme.md

View this project on CADLAB.io.

MS40

Interactive BOM

top render bottom render

The project uses Ai03s keyswitch library. Many thanks to Ai03 for releasing an awesome keyswitch library with an entirely open license.

Parts

160
QtyValueFootprintReferences
48MX-NoLEDAi03-MX:MXOnly-1U-HotswapMX1, MX2, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX20, MX21, MX22, MX23, MX25 +32
24BAV70Package_TO_SOT_SMD:SOT-23_HandsolderingD10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +8
10220RResistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolderR3, R4, R8, R12, R13, R14, R18, R22, R23, R24
105k1Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolderR1, R2, R5, R6, R7, R11, R15, R16, R17, R21
41uFCapacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolderC1, C3, C4, C6
422RResistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolderR9, R10, R19, R20
4MX-NoLEDAi03-MX:MXOnly-2U-HotswapMXB19, MXB24, MXB43, MXB48
4PRTR5V0U2XPackage_TO_SOT_SMD:SOT-143D1, D2, D29, D30
2100nFCapacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolderC2, C5
21206L110THYRFuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolderF1, F2
2ATmega32U4-AUPackage_QFP:TQFP-44_10x10mm_P0.8mmU1, U2
2BAV70Diode_SMD:D_SOD-323_HandSolderingD27, D31
2Buzzer_magneticBuzzer_Beeper:Buzzer_12x9.5RM7.6BZ1, BZ3
2Buzzer_piezoBuzzer_Beeper:Buzzer_Mallory_AST1109MLTRQBZ2, BZ4
2CSTNE16M0VH3L000R0Crystal:Resonator_SMD_muRata_CSTxExxV-3Pin_3.0x1.1mm_HandSolderingY1, Y2
2EC11ERotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmSW1, SW2
2F1TestPoint:TestPoint_Pad_D1.0mmJ6, J9
2I2C pullupJumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mmJP1, JP2
2ISPConnector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_VerticalJ16, J34
2MISOTestPoint:TestPoint_Pad_D1.0mmTP3, TP6
2MOSITestPoint:TestPoint_Pad_D1.0mmTP2, TP5
2RESETConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ15, J33
2RXTestPoint:TestPoint_Pad_D1.0mmJ1, J3
2Red LEDLED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolderD28, D32
2ResetButton_Switch_SMD:SW_SPST_CK_RS282G05A3SW3, SW4
2SCKTestPoint:TestPoint_Pad_D1.0mmTP1, TP4
2SJ-43514-SMTCUI:SJ-43514-SMTJ18, J36
2TXTestPoint:TestPoint_Pad_D1.0mmJ2, J5
2TYPE-C-31-M-12Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12J7, J25
2WS2812Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ17, J35
1LOGOgraphics:kiwi10mmG***

The 153 most common of 160 parts.

Questions

How big is the Mystic split40 PCB?

It measures 114.3 × 98.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Mystic split40 use?

160 parts, built around the ATMEGA32U4-AU, BAV70, PRTR5V0U2X and 1206L110THYR. 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 Mystic split40 KiCad files?

From the Duckle29/MS40 repository on GitHub, at the commit this page was made from: the board is mystic_split40.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Mystic split40 design in my own project?

Its repository publishes it under the BSD-3-Clause 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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