Koalafications
About the Koalafications PCB
Koalafications is an open source AVR/Arduino PCB design by swiftrax, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 304.8 × 123 mm, with 186 components from 100 distinct parts.
Its main chip is the ATMEGA32U4-MU, from the AVR/Arduino family. By type, the board carries 86 LEDs, 82 diodes, 6 resistors, 5 capacitors, 1 IC and 1 crystal.
It belongs with the keyboards and displays & leds designs in this gallery.
From the project
75% Stacked Acrylic Keyboard with an OLED screen. QMK/VIA compatible
M3 Hex Spacer 10mm x 8 M3 Hex Spacer 6mm x 3 M3 Screw 8mm x 19 M3 Screw 6mm x 3
This repository is under the CC0 1.0 Universal License. If you plan to sell these pcbs, make sure to read it.
Main components on the Koalafications
Koalafications bill of materials (BOM)
186 components, 100 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGA32U4-MU ATmega32U4-MU | QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm | U1 |
| 1 | 16MHZ 16MHz | Resonator_3Pin_Annotated | Y1 |
| 1 | OLED | SSD1306_OLED | J1 |
| 1 | PRTR5V0U2X | SOT-143 | ESD1 |
| 1 | 500MA 500mA | Fuse_1206_Annotated | F1 |
| 1 | RESET | RESET_PADS | SW1 |
| 1 | HRO-TYPE-C-31-M-12 | HRO-TYPE-C-31-M-12 | USB1 |
| 1 | KC_ESC | MXOnly-1U-NoLED | K_1 |
| 1 | KC_F1 | MXOnly-1U-NoLED | K_2 |
| 1 | KC_F2 | MXOnly-1U-NoLED | K_3 |
| 1 | KC_F3 | MXOnly-1U-NoLED | K_4 |
| 1 | KC_F4 | MXOnly-1U-NoLED | K_5 |
| 1 | KC_F5 | MXOnly-1U-NoLED | K_6 |
| 1 | KC_F6 | MXOnly-1U-NoLED | K_7 |
| 1 | KC_F7 | MXOnly-1U-NoLED | K_8 |
| 1 | KC_F8 | MXOnly-1U-NoLED | K_9 |
| 1 | KC_F9 | MXOnly-1U-NoLED | K_10 |
| 1 | KC_F10 | MXOnly-1U-NoLED | K_11 |
| 1 | KC_F11 | MXOnly-1U-NoLED | K_12 |
| 1 | KC_F12 | MXOnly-1U-NoLED | K_13 |
Show 80 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | KC_GRV | MXOnly-1U-NoLED | K_14 |
| 1 | KC_1 | MXOnly-1U-NoLED | K_15 |
| 1 | KC_2 | MXOnly-1U-NoLED | K_16 |
| 1 | KC_3 | MXOnly-1U-NoLED | K_17 |
| 1 | KC_4 | MXOnly-1U-NoLED | K_18 |
| 1 | KC_5 | MXOnly-1U-NoLED | K_19 |
| 1 | KC_6 | MXOnly-1U-NoLED | K_20 |
| 1 | KC_7 | MXOnly-1U-NoLED | K_21 |
| 1 | KC_8 | MXOnly-1U-NoLED | K_22 |
| 1 | KC_9 | MXOnly-1U-NoLED | K_23 |
| 1 | KC_0 | MXOnly-1U-NoLED | K_24 |
| 1 | KC_MINS | MXOnly-1U-NoLED | K_25 |
| 1 | KC_EQL | MXOnly-1U-NoLED | K_26 |
| 1 | KC_BSPC | MXOnly-2U-NoLED | K_27 |
| 1 | KC_DEL | MXOnly-1U-NoLED | K_28 |
| 1 | KC_TAB | MXOnly-1.5U-NoLED | K_29 |
| 1 | KC_Q | MXOnly-1U-NoLED | K_30 |
| 1 | KC_W | MXOnly-1U-NoLED | K_31 |
| 1 | KC_E | MXOnly-1U-NoLED | K_32 |
| 1 | KC_R | MXOnly-1U-NoLED | K_33 |
| 1 | KC_T | MXOnly-1U-NoLED | K_34 |
| 1 | KC_Y | MXOnly-1U-NoLED | K_35 |
| 1 | KC_U | MXOnly-1U-NoLED | K_36 |
| 1 | KC_I | MXOnly-1U-NoLED | K_37 |
| 1 | KC_O | MXOnly-1U-NoLED | K_38 |
| 1 | KC_P | MXOnly-1U-NoLED | K_39 |
| 1 | KC_LBRC | MXOnly-1U-NoLED | K_40 |
| 1 | KC_RBRC | MXOnly-1U-NoLED | K_41 |
| 1 | KC_BSLS | MXOnly-1.5U-NoLED | K_42 |
| 1 | KC_INS | MXOnly-1U-NoLED | K_43 |
| 1 | KC_CAPS | MXOnly-1.75U-NoLED | K_44 |
| 1 | KC_A | MXOnly-1U-NoLED | K_45 |
| 1 | KC_S | MXOnly-1U-NoLED | K_46 |
| 1 | KC_D | MXOnly-1U-NoLED | K_47 |
| 1 | KC_F | MXOnly-1U-NoLED | K_48 |
| 1 | KC_G | MXOnly-1U-NoLED | K_49 |
| 1 | KC_H | MXOnly-1U-NoLED | K_50 |
| 1 | KC_J | MXOnly-1U-NoLED | K_51 |
| 1 | KC_K | MXOnly-1U-NoLED | K_52 |
| 1 | KC_L | MXOnly-1U-NoLED | K_53 |
| 1 | KC_SCLN | MXOnly-1U-NoLED | K_54 |
| 1 | KC_QUOT | MXOnly-1U-NoLED | K_55 |
| 1 | KC_ENT | MXOnly-2.25U-NoLED | K_56 |
| 1 | KC_BSLS | MXOnly-1U-NoLED | K_57 |
| 1 | KC_HOME | MXOnly-1U-NoLED | K_58 |
| 1 | KC_LSFT | MXOnly-2.25U-NoLED | K_59 |
| 1 | KC_Z | MXOnly-1U-NoLED | K_60 |
| 1 | KC_X | MXOnly-1U-NoLED | K_61 |
| 1 | KC_C | MXOnly-1U-NoLED | K_62 |
| 1 | KC_V | MXOnly-1U-NoLED | K_63 |
| 1 | KC_B | MXOnly-1U-NoLED | K_64 |
| 1 | KC_N | MXOnly-1U-NoLED | K_65 |
| 1 | KC_M | MXOnly-1U-NoLED | K_66 |
| 1 | KC_COMM | MXOnly-1U-NoLED | K_67 |
| 1 | KC_DOT | MXOnly-1U-NoLED | K_68 |
| 1 | KC_SLSH | MXOnly-1U-NoLED | K_69 |
| 1 | KC_RSFT | MXOnly-1.75U-NoLED | K_70 |
| 1 | KC_UP | MXOnly-1U-NoLED | K_71 |
| 1 | KC_END | MXOnly-1U-NoLED | K_72 |
| 1 | KC_LCTL | MXOnly-1.25U-NoLED | K_73 |
| 1 | KC_LGUI | MXOnly-1.25U-NoLED | K_74 |
| 1 | KC_LALT | MXOnly-1.25U-NoLED | K_75 |
| 1 | KC_SPC | MXOnly-6.25U-ReversedStabilizers-NoLED | K_76 |
| 1 | KC_RALT | MXOnly-1U-NoLED | K_77 |
| 1 | KC_RGUI | MXOnly-1U-NoLED | K_78 |
| 1 | KC_RCTL | MXOnly-1U-NoLED | K_79 |
| 1 | KC_LEFT | MXOnly-1U-NoLED | K_80 |
| 1 | KC_DOWN | MXOnly-1U-NoLED | K_81 |
| 1 | KC_RGHT | MXOnly-1U-NoLED | K_82 |
| 1 | KC_BSPC | MXOnly-1U-NoLED | K_113A1 |
| 1 | KC_CAPS | MXOnly-1.25U-NoLED | K_300A1 |
| 1 | KC_ | MXOnly-1.5U-NoLED | K_508A1 |
| 1 | KC_RCTL | MXOnly-1.5U-NoLED | K_510A1 |
| 82 | D_Small | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D2, D3, D4, D5, D6, D7, D8 +74 |
| 1 | 10µF | C_0603_Annotated | C1 |
| 3 | 100NF 100nF | C_0603_Annotated | C2, C3, C4 |
| 1 | 1µF | C_0603_Annotated | C5 |
| 2 | 10kΩ | R_0603_Annotated | R1, R2 |
| 2 | 22Ω | R_0603_Annotated | R3, R4 |
| 2 | 5.1kΩ | R_0603_Annotated | R5, R6 |
Koalafications design files
The KiCad project lives in the swiftrax/Koalafications repository on GitHub; these links point at the commit this page was built from.
Koalafications: common questions
What microcontroller does the Koalafications use?
The Koalafications is built around the ATMEGA32U4-MU, from the AVR/Arduino family.
How big is the Koalafications PCB?
The Koalafications measures 304.8 × 123 mm, has 2 copper layers and is 1.2 mm thick.
How many components are on the Koalafications?
186 components, from 100 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Koalafications design files?
From the swiftrax/Koalafications repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Koalafications design in my own project?
Yes, under the terms of its CC0-1.0 license, which swiftrax chose for the repository.
Can I test firmware for the Koalafications without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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