2 layers284.7 × 95.5 mm
2 layers78.7 × 97.3 mm
Macrocat
catmunch/macrocatA cat like macro keyboard/numpad.
- Size
- 78.7 × 97.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 55
- Nets
- 56
- Pads
- 266
- Tracks, vias
- 367, 40
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 14 Jun 2022
- Updated
- 31 Oct 2022
Overview
Macrocat is an open-source printed circuit board by catmunch, from the catmunch/macrocat repository on GitHub, published under the MIT licence. It is a 2-layer board of 78.7 × 97.3 mm with 55 parts on 56 nets, routed with 367 tracks and 40 vias.
It is built around the ATMEGA32U4-MU and 1N4148W. Its parts include 16 diodes, 7 capacitors, 6 resistors, 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA32U4-MU
VQFN-44-EP(7x7)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH VQFN-44-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
README
README.mdMacrocat
A cat like macro keyboard/numpad.
Resources
- Designer Spreadsheet
- QMK Docs
- ai03
- Keyboard Layout Editor
- ai03 Plate Generator
- Keyswitch KiCAD Library Licensed in CC-BY-SA 4.0
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 1N4148W | macrocat:D_SOD-123_back | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16 |
| 16 | MX-NoLED | macrocat:MXOnly-1U-Hotswap | MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8, MX9, MX10, MX11, MX12, MX13, MX14, MX15, MX16 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C4, C6 |
| 3 | LOGO | LOGO | G***, G***, G*** |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | 5.1K | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | 16M | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | ATmega32U4-M | Package_DFN_QFN:QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm | U1 |
| 1 | OLED | kbd:OLED_v2 | OL1 |
| 1 | RotaryEncoder_Switch | macrocat:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | KNOB1 |
| 1 | SW_Push | Button_Switch_SMD:SW_DIP_SPSTx01_Slide_6.7x4.1mm_W6.73mm_P2.54mm_LowProfile_JPin | RESET1 |
| 1 | USB-C Connector | nrfmicro:USB-C_C168688 | J1 |
Questions
How big is the Macrocat PCB?
It measures 78.7 × 97.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Macrocat use?
55 parts, built around the ATMEGA32U4-MU and 1N4148W. 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 Macrocat KiCad files?
From the catmunch/macrocat repository on GitHub, at the commit this page was made from: the board is pcb/macrocat.kicad_pcb and its schematic pcb/macrocat.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Macrocat design in my own project?
Its repository publishes it under the MIT 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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