2 layers75.2 × 62.6 mm
2 layers27.5 × 40.3 mm
ISO single-key "macropad"
- Size
- 27.5 × 40.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 40
- Pads
- 115
- Tracks, vias
- 210, 22
- Pours
- 100
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 22 Sep 2021
- Updated
- 22 Feb 2024
Overview
Iso is an open-source printed circuit board by str-dst, from the str-dst/ISOlation repository on GitHub. It is a 2-layer board of 27.5 × 40.3 mm with 21 parts on 40 nets, routed with 210 tracks and 22 vias.
It is built around the ATMEGA328P-AU, SRV05-4 and SK6812MINI-E. Its parts include 5 resistors, 5 diodes, 3 capacitors, 2 ICs and 1 connector. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATMEGA328P-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH TQFP-32(7x7) 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)
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
README
pcb/README.mdParts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | SK6812MINI | custom_parts:SK6812MINIE-simple | LED1, LED2, LED3 |
| 2 | 22pF | Capacitor_SMD:C_0603_1608Metric | C7, C8 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 68R | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | D_Zener_Small | Diode_SMD:D_SOD-323 | D1, D2 |
| 1 | 1.5K | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | ATmega328P-AU | Package_QFP:TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | Conn_01x06 | Connector_PinHeader_2.00mm:PinHeader_1x06_P2.00mm_Vertical | J1 |
| 1 | Crystal_GND24_Small | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | X1 |
| 1 | MX-NoLED | custom_parts:MXOnly-ISO-ROTATEDCCW-ReversedStabilizers-NoLED | MX1 |
| 1 | Polyfuse_Small | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | SW_Push | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | BOOT |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USB1 |
Questions
How big is the Iso PCB?
It measures 27.5 × 40.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Iso use?
21 parts, built around the ATMEGA328P-AU, SRV05-4 and SK6812MINI-E. 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 Iso KiCad files?
From the str-dst/ISOlation repository on GitHub, at the commit this page was made from: the board is pcb/iso.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Iso design in my own project?
Its repository states no licence, so its author keeps all rights: ask str-dst before reusing the design.
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