2 layers194.3 × 79 mm
2 layers259 × 88.3 mm
Eliza
str-dst/Eliza912u 40% ergo keyboard
- Size
- 259 × 88.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 83
- Nets
- 80
- Pads
- 368
- Tracks, vias
- 520, 27
- Pours
- 295
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 1 Jun 2022
- Updated
- 24 Feb 2024
Overview
Eliza is an open-source printed circuit board by str-dst, from the str-dst/Eliza repository on GitHub. It is a 2-layer board of 259 × 88.3 mm with 83 parts on 80 nets, routed with 520 tracks and 27 vias.
It is built around the ATMEGA32U2-AU and SRV05-4. Its parts include 21 diodes, 6 capacitors, 6 resistors, 2 ICs and 1 crystal. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA32U2-AU
TQFP-32(7x7)-40℃~+85℃ 16MHz 1KB 1KB 2.7V~5.5V 22 32KB 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、External pin reset (NRST)、Built-in general-purpose timer、Programmable watchdog TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontroller Units (MCUs/MPUs/SOCs)
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)
README
pcb/README.mdParts
83| Qty | Value | Footprint | References |
|---|---|---|---|
| 39 | MX-NoLED | MX_Only:MXOnly-1U-NoLED | MX1, MX2, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX19, MX20, MX21, MX22, MX23 +23 |
| 21 | D_Small | custom_parts:D_SOT-23_ANK_norm | D1, D2, D3, D4, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21 +5 |
| 2 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C4, C5 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | ATmega32U2-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | Crystal_GND24_Small | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | X1 |
| 1 | LOGO | custom_parts:vial_logo | G*** |
| 1 | LOGO | custom_parts:qmk | G*** |
| 1 | LOGO | custom_parts:elmo | G*** |
| 1 | MX-NoLED | MX_Only:MXOnly-2.75U-ReversedStabilizers-NoLED | MX38 |
| 1 | MX-NoLED | MX_Only:MXOnly-2.25U-ReversedStabilizers-NoLED | MX39 |
| 1 | Polyfuse_Small | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | RESET | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | RESET |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USB1 |
Questions
How big is the Eliza PCB?
It measures 259 × 88.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Eliza use?
83 parts, built around the ATMEGA32U2-AU and SRV05-4. 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 Eliza KiCad files?
From the str-dst/Eliza repository on GitHub, at the commit this page was made from: the board is pcb/Eliza.kicad_pcb and its schematic pcb/Eliza.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Eliza 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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