2 layers259.5 × 89.1 mm
2 layers301.5 × 98.9 mm
replacement PCB for the Matrix Noah
- Size
- 301.5 × 98.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 139
- Nets
- 78
- Pads
- 662
- Tracks, vias
- 922, 47
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 2 Jan 2021
- Updated
- 12 Nov 2021
Overview
Noah is an open-source printed circuit board by str-dst, from the str-dst/noah_avr repository on GitHub. It is a 2-layer board of 301.5 × 98.9 mm with 139 parts on 78 nets, routed with 922 tracks and 47 vias.
It is built around the ATMEGA32U4-AU and SRV05-4. Its parts include 36 diodes, 8 capacitors, 5 resistors, 2 ICs and 1 fuse. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA32U4-AU
QFP-44(10x10)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH QFP-44(10x10) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SRV05-4
SOT-23-6L-55℃~+150℃ 15V 1pF 4A 5V 5uA 6V 80W ESD Four channels IEC 61000-4-2、IEC 61000-4-5 Unidirectional SOT-23-6L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
README
README.mdNoah AVR
This project is completed and will not get updated anymore.
Atmega32u4 based drop-in replacement PCB for the Matrix Noah keyboard
JST connectors for USB and RGB
SMD standoffs for daughterboard
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Parts
139| Qty | Value | Footprint | References |
|---|---|---|---|
| 59 | MX-NoLED | MX_Only:MXOnly-1U-NoLED | MX2, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX20, MX21, MX22, MX23, MX24, MX25 +43 |
| 33 | D_Small | custom_parts:D_SOT-23_ANK | D1, D2, D10, D11, D12, D13, D14, D15, D17, D18, D19, D20, D21, D22, D23, D24 +17 |
| 6 | MX-NoLED | MX_Only:MXOnly-1.25U-NoLED | MX50, MX71, MX72, MX73, MX75, MX76 |
| 5 | MX-NoLED | MX_Only:MXOnly-1.5U-NoLED | MX19, MX32, MX66, MX68, MX70 |
| 4 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C2, C3, C4, C5 |
| 4 | MountingHole | MountingHole:MountingHole_3mm_Pad_Via | H1, H2, H3, H4 |
| 3 | D_Small | Diode_SMD:D_SOD-123 | D16, D31, D34 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R5 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C8, C9 |
| 2 | Conn_01x04 | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | RGB1, USB1 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | ATmega32U4-AU | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | Crystal_GND24_Small | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | XTAL1 |
| 1 | MX-LED | custom_parts:MXOnly-1.25U-flipped-LED | MX34 |
| 1 | MX-LED | MX_Only:MXOnly-1.75U | MX36 |
| 1 | MX-NoLED | MX_Only:MXOnly-2.25U-ReversedStabilizers-NoLED | MX48 |
| 1 | MX-NoLED | MX_Only:MXOnly-1.75U-NoLED | MX63 |
| 1 | MX-NoLED | MX_Only:MXOnly-7U-ReversedStabilizers-NoLED | MX69 |
| 1 | MX-NoLED | MX_Only:MXOnly-2U-NoLED | MX1 |
| 1 | MX-NoLED | MX_Only:MXOnly-6.25U-ReversedStabilizers-NoLED | MX74 |
| 1 | MX-NoLED | MX_Only:MXOnly-2.25U-NoLED | MX51 |
| 1 | MX-NoLED | custom_parts:MXOnly-ISO-ReversedStabilizers-NoLED | MX35 |
| 1 | Polyfuse_Small | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | SW_Push | random-keyboard-parts:SKQG-1155865 | RESET |
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Questions
How big is the Noah PCB?
It measures 301.5 × 98.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Noah use?
139 parts, built around the ATMEGA32U4-AU and SRV05-4. 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 Noah KiCad files?
From the str-dst/noah_avr repository on GitHub, at the commit this page was made from: the board is noah.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Noah design in my own project?
Its repository states no licence, so its author keeps all rights: ask str-dst before reusing the design.