

Akira board
Trackball Inspired by Akira's explosion
- Size
- 110 × 94 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 68
- Nets
- 64
- Pads
- 239
- Tracks, vias
- 847, 114
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 6 Mar 2023
- Updated
- 10 Jun 2026
Overview
Akira board is an open-source printed circuit board by MeltedIceCubes, from the MeltedIceCubes/Akira_Ball repository on GitHub. It is a 2-layer board of 110 × 94 mm with 68 parts on 64 nets, routed with 847 tracks and 114 vias.
It is built around the SN74LVC1T45DCK and TPS73601DBV. Its parts include 21 resistors, 11 capacitors, 2 ICs, 2 diodes and 1 crystal. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2SN74LVC1T45DCK
SC-70-6-40℃~+85℃ 1 1 1.65V~5.5V 1.65V~5.5V 420Mbps Bidirectional Level translator Power-off protection、Output enable high-impedance Tri-State SC-70-6 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level ShiftersTPS73601DBV
SOT-23-5-40℃~+125℃@(Tj) 1 1.2V~5.5V 200mV@(400mA) 5.5V 500mA 58dB@(100Hz) Adjustable Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdCurrent Target
- 2025/03/06
- Lock down a basic functioning design.
Ideas
- Sheet metal manufacturing?
- CNC Aluminum?
PCB Parts
Parts
68| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | MountingHole_Pad | AkiraBallParts:M2 Mounting Hole | H1, H2, H3, H4, H5, H6, H7 |
| 6 | 100nF | Capacitor_SMD:C_0603_1608Metric | C4, C5, C6, C8, C9, C11 |
| 5 | D_Small | Diode_SMD:D_SOD-123 | D_I_1, D_I_2, D_I_3, D_I_4, D_I_5 |
| 4 | Kailh_MicroSwitch | Akira_Ball_Parts:GM8.0 | SW_M_1_1, SW_M_1_2, SW_M_2_1, SW_M_2_2 |
| 4 | SN74LVC1T45DCK | Package_TO_SOT_SMD:SOT-363_SC-70-6 | LS1, LS2, LS3, LS4 |
| 3 | 2R | Resistor_SMD:R_0603_1608Metric | R1_9, R1_10, R1_11 |
| 2 | H8, H9 | ||
| 2 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R6 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R1_6, R1_8 |
| 2 | 12p | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 20R | Resistor_SMD:R_0603_1608Metric | R1_12, R1_13 |
| 2 | 3.6V | Diode_SMD:D_SOD-123 | D1, D2 |
| 2 | 4.7K | Resistor_SMD:R_0603_1608Metric | R2_1, R2_2 |
| 2 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C10, C12 |
| 2 | 47R | Resistor_SMD:R_0603_1608Metric | R1_3, R1_4 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R1_1, R1_2 |
| 2 | 7.5K | Resistor_SMD:R_0603_1608Metric | R2, R5 |
| 2 | SW | Akira_Ball_Parts:Switch SMD-4P,5.1x5.1mm | U1, U2 |
| 1 | 1.5k | Resistor_SMD:R_0603_1608Metric | R1_5 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 30K | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 33R | Resistor_SMD:R_0603_1608Metric | R1_7 |
| 1 | 56K | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | ATMEGA328P-PU-ND | AkiraBallParts:DIP-28_AtMega328PU | ATMEGA328P1 |
| 1 | AVR-ISP-6 | AkiraBallParts:SKEDD_6PinConnectingHole | ISP1 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y2 |
| 1 | Polyfuse | Fuse:Fuse_0805_2012Metric | F1 |
| 1 | Rotary_Encoder | AkiraBallParts:Encoder_Ring | SCROLL_RING1 |
| 1 | TPS73601DBV | Package_TO_SOT_SMD:SOT-23-5 | VR1 |
| 1 | USB_C_Receptacle_USB2.0 | Akira_Ball_Parts:USB_C_16P_SMD_C3025063 | USB1 |
| 1 | Volume_Knob | Akira_Ball_Parts:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | KNOB1 |
| 1 | ~ | Akira_Ball_Parts:PMW3360_2 | PMW3360 |
| 1 | ~ | AkiraBallParts:OLED_PinHeader_1x04_P2.54mm | OLED1 |
Similar boards
- 2 layers133.2 × 75.4 mm

- 2 layers342.9 × 109.6 mm

- 2 layers30 × 30.2 mm

Paw3395 breakout board
vnguyen31/PixArt-PAW3395-Breakout-Board
Fully functioning Breakout Board with SPI pin headers for PAW3395 Motion Sensor
28 parts11MIT - 2 layers50 × 22.9 mm

RX Module nRF24L01
obbo-pl/RC-RX-NRF24L01
RC receiver with NRF24L01 module and compatible with the CABELL protocol
33 parts3GPL-3.0 - 2 layers22 × 25 mm

- 2 layers336.8 × 109.9 mm

- 2 layers22.8 × 24 mm

- 12 layers160.1 × 233.5 mm

Vme wren
KiCad/kicad-source-mirror
This is an active mirror of the KiCad development branch, which is hosted at GitLab (updated every time something is pushed). Pull requests on GitHub are not accepted or watched.
1,508 parts3.1kGPL-3.0
Questions
How big is the Akira board PCB?
It measures 110 × 94 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Akira board use?
68 parts, built around the SN74LVC1T45DCK and TPS73601DBV. 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 Akira board KiCad files?
From the MeltedIceCubes/Akira_Ball repository on GitHub, at the commit this page was made from: the board is Akira_board.kicad_pcb and its schematic Akira_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Akira board design in my own project?
Its repository states no licence, so its author keeps all rights: ask MeltedIceCubes before reusing the design.