2 layers243.9 × 136.5 mm
Barobord
sadekbaroudi/barobord
I have spent a lot of time and money designing prototypes, testing, developing, etc. Any contributions would be greatly appreciated!
157 parts57
2 layers276.2 × 79.8 mm
Minim
matthewdias/minim13A symmetrical 50% keyboard
- Size
- 276.2 × 79.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 114
- Nets
- 89
- Pads
- 452
- Tracks, vias
- 776, 52
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 15 Nov 2020
- Updated
- 15 Nov 2020
Overview
Minim is an open-source printed circuit board by matthewdias, from the matthewdias/minim repository on GitHub, published under the MIT licence. It is a 2-layer board of 276.2 × 79.8 mm with 114 parts on 89 nets, routed with 776 tracks and 52 vias.
It is built around the ATMEGA32U4-AU and PRTR5V0U2X. Its parts include 9 capacitors, 6 resistors, 2 ICs, 1 switch and 1 crystal. 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)
PRTR5V0U2X
SOT-143-55℃~+125℃ 0.3pF、0.8pF 100W 10V、15V 5V 6.5V 6A 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
README
PCB/readme.md
Parts
114| Qty | Value | Footprint | References |
|---|---|---|---|
| 46 | D | Diode_SMD:D_SOD-123 | D_1, D_2, D_10, D_11, D_12, D_13, D_14, D_15, D_16, D_17, D_18, D_19, D_20, D_21, D_22, D_23 +30 |
| 35 | KEYSW | MX_Only:MXOnly-1U-NoLED | K_2, K_10, K_11, K_12, K_13, K_16, K_17, K_18, K_19, K_20, K_21, K_22, K_23, K_24, K_25, K_26 +19 |
| 5 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C3, C4, C5, C6, C7 |
| 4 | KEYSW | MX_Only:MXOnly-1.25U-NoLED | K_1, K_14, K_41, K_45 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R4 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R2, R3 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 2 | KEYSW | MX_Only:MXOnly-2U-ReversedStabilizers-NoLED | K_42, K_44 |
| 2 | KEYSW | MX_Only:MXOnly-1.75U-NoLED | K_15, K_27 |
| 2 | KEYSW | MX_Only:MXOnly-2.25U-ReversedStabilizers-NoLED | K_28, K_39 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C8 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | ATmega32U4-AU | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | HRO-TYPE-C-31-M-12 | Type-C:HRO-TYPE-C-31-M-12-Assembly | USB1 |
| 1 | KEYSW | MX_Only:MXOnly-7U-3U-ReversedStabilizers-NoLED - Copy | K_43 |
| 1 | LOGO | Project_Parts:icon | LOGO1 |
| 1 | PRTR5V0U2X | random-keyboard-parts:SOT143B | U2 |
| 1 | SW_Push | random-keyboard-parts:SKQG-1155865 | SW1 |
Similar boards
- 2 layers217.7 × 91.1 mm
- 2 layers298.8 × 122 mm
Ursaminor pcb
markstory/ursa-minor-keyboard
Design and schematics for the ursaminor keyboard
225 parts23 - 2 layers285.5 × 112.1 mm
- 2 layers242.3 × 75.4 mm
- 2 layers333.4 × 88.6 mm
Reverie
makenova/reverie
a mini 1800 keyboard based on the Elongate, Clarabelle, and Garbage Truck Keyboards
140 parts14 - 2 layers281.8 × 166.9 mm
Micro redox semi split
makenova/micro_redox
A family of boards inspired by the microdox and ferris
96 parts13 - 2 layers255.7 × 260.9 mm
Questions
How big is the Minim PCB?
It measures 276.2 × 79.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Minim use?
114 parts, built around the ATMEGA32U4-AU and PRTR5V0U2X. 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 Minim KiCad files?
From the matthewdias/minim repository on GitHub, at the commit this page was made from: the board is PCB/minim.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Minim 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).