2 layers42 × 67 mm
2 layers416.7 × 174.3 mm
Ttaelgam
baebling/ttaelgamcustom keyboard design
- Size
- 416.7 × 174.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 217
- Nets
- 142
- Pads
- 1,155
- Tracks, vias
- 1,151, 68
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Aug 2024
- Updated
- 17 Dec 2025
Overview
Ttaelgam is an open-source printed circuit board by baebling, from the baebling/ttaelgam repository on GitHub. It is a 2-layer board of 416.7 × 174.3 mm with 217 parts on 142 nets, routed with 1,151 tracks and 68 vias.
It is built around the RP2040 and W25Q128JVSIQ. Its parts include 90 diodes, 16 capacitors, 7 resistors, 6 switches and 3 ICs. It belongs with the RP2040 boards of this library.
Main components
2
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
README
README.mdttaelgam
custom keyboard design
Parts
217| Qty | Value | Footprint | References |
|---|---|---|---|
| 90 | D_Small | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +74 |
| 83 | MX_SW_HS | marbastlib-mx:SW_MX_HS_CPG151101S11_1u | MX1, MX2, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX19, MX20, MX21, MX22, MX23 +67 |
| 8 | 100n | Capacitor_SMD:C_0402_1005Metric | C4, C10, C11, C12, C13, C14, C15, C16 |
| 5 | 1u | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C5, C9 |
| 4 | MX_SW_HS | marbastlib-mx:SW_MX_HS_CPG151101S11_1.25u | MX78, MX79, MX80, MX83 |
| 3 | 5.1k | Resistor_SMD:R_0402_1005Metric | R3, R4, R5 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R6, R9 |
| 2 | 22p | Capacitor_SMD:C_0402_1005Metric | C6, C7 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R7, R8 |
| 2 | MX_SW_HS | marbastlib-mx:SW_MX_HS_CPG151101S11_1.5u | MX34, MX47 |
| 2 | MX_stab | marbastlib-mx:STAB_MX_2.75u | S76, S81 |
| 2 | MX_stab | marbastlib-mx:STAB_MX_2.25u | S63, S64 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_TL3342 | BOOT1, RST1 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C8 |
| 1 | 78171-0004 | Connector_Molex:Molex_Pico-EZmate_78171-0004_1x04-1MP_P1.20mm_Vertical | J4 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | MX_SW_HS | marbastlib-mx:SW_MX_HS_CPG151101S11_1.75u_STP_1.25 | MX51 |
| 1 | MX_stab | marbastlib-mx:STAB_MX_2u | S30 |
| 1 | MX_stab | marbastlib-mx:STAB_MX_3u | S82 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U2 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U4 |
| 1 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23-3 | U1 |
Questions
How big is the Ttaelgam PCB?
It measures 416.7 × 174.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ttaelgam use?
217 parts, built around the RP2040 and W25Q128JVSIQ. 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 Ttaelgam KiCad files?
From the baebling/ttaelgam repository on GitHub, at the commit this page was made from: the board is ttaelgam.kicad_pcb and its schematic ttaelgam.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ttaelgam design in my own project?
Its repository states no licence, so its author keeps all rights: ask baebling before reusing the design.
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