4 layers315.6 × 164.9 mm
MyCustom 75Keeb
MohamedAlDeep/RGB-Mechanical-KEEB-
This is my custom made 75% rgb mechanical keyboard
283 parts1
4 layers228.2 × 80.6 mm
Snake pcb
1000eyed/snake6Repository for snake keyboard
- Size
- 228.2 × 80.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 199
- Nets
- 133
- Pads
- 870
- Tracks, vias
- 1,162, 196
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 21 Dec 2024
- Updated
- 10 Feb 2025
Overview
Snake pcb is an open-source printed circuit board by 1000eyed, from the 1000eyed/snake repository on GitHub. It is a 4-layer board of 228.2 × 80.6 mm with 199 parts on 133 nets, routed with 1,162 tracks and 196 vias.
It is built around the STM32F072CBT6, USBLC6-2SC6 and XC6206-2.8V, with the CL05B104KB54PNC, 1N4148W and SK6812MINI-E among its other parts. Its parts include 86 diodes, 54 capacitors, 6 switches, 3 resistors and 3 ICs. It belongs with the keyboards and input boards and the STM32 boards of this library.
Main components
6
STM32F072CBT6
LQFP-48(7x7)-40℃~+85℃ 1.65V~3.6V 128KB 12bit 12bit 16KB 32 Bit 37 48MHz ARM Cortex-M0 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
XC6206-2.8V
SOT-23-3L-40℃~+85℃@(Ta) 1 1uA 2.8V 250mA 350mV@(30mA) 6V Fixed Over Current Protection Positive SOT-23-3L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSYONGYUTAIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CL05B104KB54PNC
0402100nF 50V X7R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
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
snake-pcb/README.mdScottoModules
Two modules based on the STM32F072CBT6 to make integrated MCU PCBs simpler. They're designed to sit between 2 switches on an ortholinear or row-staggered keyboard, column-staggered will require some manual moving to get them to fit correctly.
Bill of Materials (BOM)
| Quantity | Part | LCSC |
|---|---|---|
| 1 | STM32F072CBT6 (LQFP-48_7x7) | C81720 |
| 1 | XC6206 (SOT-23-3L) | C5446 |
| 1 | USBLC6-2SC6 (SOT-23-6) | C2827654 |
| 1 | TL3342 | C115351 |
| 1 | USB_C_HRO_TYPE-C-31-M-12 | C165948 |
| 2 | 5.1k Resistor (0402) | C25905 |
| 1 | 10k Resistor (0402) | C25744 |
| 1 | 500mA Fuse (0603) | C210357 |
| 3 | 1uF Capacitor (0402) | C52923 |
| 1 | 10nF Capacitor (0402) | C15195 |
| 2 | 4.7uF Capacitor (0402) | C23733 |
| 5 | 100nF Capacitor (0402) | C307331 |
Usage
-
The project is setup as a Kicad template, first open Kicad and select "New Project from Template..." from the file menu.
-
Next click the folder icon and navigate to where you saved the
ScottoModules/STM32F072CBT6folder and open it. -
Select
ScottoModules (STM32)and clickOK. -
Name your project and save it somewhere.
-
You're now ready to start using ScottoModules!
Kicad Template Folder
Alternatively, you can save ScottoModules/STM32F072CBT6 to your Kicad templates folder and not have to manually load it each time.
- Mac - /Users/YOUR_USERNAME/Documents/KiCad/8.0/template/
- Windows - C:\Users\YOUR_USERNAME\Documents\KiCad\8.0\template\
Parts
199| Qty | Value | Footprint | References |
|---|---|---|---|
| 48 | 100nF | ScottoKeebs_Components:Capacitor_0402 | C7, C10, C11, C13, C16, CapLED1, CapLED10, CapLED11, CapLED12, CapLED13, CapLED14, CapLED15, CapLED16, CapLED17, CapLED18, CapLED19 +32 |
| 43 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +27 |
| 43 | SK6812MINI | ScottoKeebs_Components:LED_SK6812MINI | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +27 |
| 42 | MX_SW_solder | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1u | MX1, MX2, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX19, MX20, MX21, MX22, MX23 +26 |
| 3 | 1uF | ScottoKeebs_Components:Capacitor_0402 | C8, C9, C15 |
| 2 | 4.7uF | ScottoKeebs_Components:Capacitor_0402 | C12, C17 |
| 2 | 5.1k | ScottoKeebs_Components:Resistor_0402 | R2, R3 |
| 1 | 10k | ScottoKeebs_Components:Resistor_0402 | R1 |
| 1 | 10nF | ScottoKeebs_Components:Capacitor_0402 | C14 |
| 1 | 500mA | ScottoKeebs_Components:Fuse_0603 | F1 |
| 1 | Conn_01x05_Socket | Connector_JST:JST_EH_B5B-EH-A_1x05_P2.50mm_Vertical | J2 |
| 1 | LOGO | snake:snake | G*** |
| 1 | MX_SW_solder | PCM_marbastlib-mx:SW_MX_HS_CPG151101S11_1.25u | MX36 |
| 1 | MX_stab | PCM_marbastlib-mx:STAB_MX_P_ISO-ROT | S35 |
| 1 | MX_stab | PCM_marbastlib-mx:STAB_MX_P_2.25u | S40 |
| 1 | MX_stab | PCM_marbastlib-mx:STAB_MX_7u | S43 |
| 1 | MX_stab | PCM_marbastlib-mx:STAB_MX_P_2.75u | S39 |
| 1 | RotaryEncoder_Switch | ScottoKeebs_Scotto:Encoder_EC11_MX | SW2 |
| 1 | STM32F072CBT6 | ScottoKeebs_Components:Package_LQFP-48_7x7mm_P0.5 | U1 |
| 1 | SW_Push | ScottoKeebs_Components:Button_TL3342 | SW1 |
| 1 | USBLC6-2SC6 | ScottoKeebs_Components:ESD_SOT-23-6 | U4 |
| 1 | USB_C | ScottoKeebs_Components:USB_C_HRO_TYPE-C-31-M-12 | J1 |
| 1 | XC6206 | ScottoKeebs_Components:Voltage_SOT-23 | U3 |
Questions
How big is the Snake pcb PCB?
It measures 228.2 × 80.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Snake pcb use?
199 parts, built around the STM32F072CBT6, USBLC6-2SC6, XC6206-2.8V and CL05B104KB54PNC. 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 Snake pcb KiCad files?
From the 1000eyed/snake repository on GitHub, at the commit this page was made from: the board is snake-pcb/snake-pcb.kicad_pcb and its schematic snake-pcb/snake-pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Snake pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask 1000eyed before reusing the design.
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