4 layers46.6 × 47.9 mm
Drake 10b
Reisi/Drake
The Drake hardware is a multi-purpose PCB which can be used to build a wireless dropper post actuator or a rear light.
173 parts1BSD-2-Clause
2 layers85.6 × 54 mm
Cardtty
luftaquila/cardtty- Size
- 85.6 × 54 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 62
- Nets
- 49
- Pads
- 195
- Tracks, vias
- 392, 74
- Pours
- 39
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 11 Sep 2026
- Updated
- 15 Sep 2026
Overview
Cardtty is an open-source printed circuit board by luftaquila, from the luftaquila/cardtty repository on GitHub. It is a 2-layer board of 85.6 × 54 mm with 62 parts on 49 nets, routed with 392 tracks and 74 vias.
It is built around the CH32X035G8U6, LP5907SNX-3.3 and NT3H2111W0FHKH, with the KT-0603R and H5VU13U among its other parts. Its parts include 36 switches, 9 resistors, 7 capacitors, 4 diodes and 3 ICs.
Main components
5
CH32X035G8U6
QFN-28(4X4)-40℃~+85℃ 12bit 20KB 27 3.3V、5V 32 Bit 48MHz 62KB Built-in FLASH RISC-V4C QFN-28(4X4) Microcontrollers (MCU/MPU/SOC) ROHSWCH (Nanjing Qinheng Microelectronics)Microcontrollers (MCU/MPU/SOC)
LP5907SNX-3.3
XDFN-4-EP(1x1)-40℃~+125℃@(Tj) 1 120mV@(250mA) 12uA 250mA 3.3V 5.5V 6.5uVrms 82dB@(1kHz) Fixed Positive Under Voltage Lockout、Over Temperature Protection、Enable、Short Circuit Protection XDFN-4-EP(1x1) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
NT3H2111W0FHKH
XQFN-8(1.6x1.6)RFID ICsNXP Semiconductors
KT-0603R
0603-40℃~+85℃ 1.6mm x 0.8mm square LED 1.8V~2.4V 120° 20mA 300mcd 40mW 615nm~630nm 645nm Discrete Diode Red Water Clear 0603 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - Discrete
H5VU13U
DFN1006-3L-55℃~+125℃ 0.4pF、0.8pF 15V 200nA 5A@8/20us 5V 75W@8/20us 9V ESD IEC 61000-4-2、IEC 61000-4-5 Unidirectional DFN1006-3L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
Parts
62| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 100nF | Capacitor_SMD:C_0402_1005Metric | C4, C5, C6 |
| 3 | 4.7k | Resistor_SMD:R_0402_1005Metric | R3, R4, R5 |
| 3 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3 |
| 3 | 470 | Resistor_SMD:R_0402_1005Metric | R7, R8, R9 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D2, D3, D4 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 1 | 47k | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | A | cardtty:TouchCell_1u | SW15 |
| 1 | Alt | cardtty:TouchCell_2u | SW34 |
| 1 | B | cardtty:TouchCell_1u | SW33 |
| 1 | BOOT | cardtty:BOOT_Short_Pads_P0.6mm | JP1 |
| 1 | BS | cardtty:TouchCell_1u | SW12 |
| 1 | C | cardtty:TouchCell_1u | SW29 |
| 1 | CH32X035G8U6 | Package_DFN_QFN:WQFN-28-1EP_4x4mm_P0.4mm_EP2.7x2.7mm | U1 |
| 1 | C_TAG_TRIM | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | Ctrl | cardtty:TouchCell_2u | SW28 |
| 1 | D | cardtty:TouchCell_1u | SW19 |
| 1 | E | cardtty:TouchCell_1u | SW4 |
| 1 | ESC | cardtty:TouchCell_1u | SW1 |
| 1 | Enter | cardtty:TouchCell_2u | SW22 |
| 1 | F | cardtty:TouchCell_1u | SW21 |
| 1 | Fn | cardtty:TouchCell_2u | SW30 |
| 1 | G | cardtty:TouchCell_1u | SW23 |
| 1 | GUI | cardtty:TouchCell_2u | SW36 |
| 1 | H | cardtty:TouchCell_1u | SW14 |
| 1 | H5VU13U | Package_DFN_QFN:Diodes_DFN1006-3 | D1 |
| 1 | I | cardtty:TouchCell_1u | SW9 |
| 1 | J | cardtty:TouchCell_1u | SW16 |
| 1 | K | cardtty:TouchCell_1u | SW18 |
| 1 | L | cardtty:TouchCell_1u | SW20 |
| 1 | LP5907SNX-3.3 | cardtty:DQN0004A | U2 |
| 1 | M | cardtty:TouchCell_1u | SW26 |
| 1 | N | cardtty:TouchCell_1u | SW35 |
| 1 | NFC | cardtty:NFC_Rect_35x15_6T | AE1 |
| 1 | NT3H2111W0FHKH | cardtty:XQFN8_NT3H2111_NXP | U3 |
| 1 | O | cardtty:TouchCell_1u | SW10 |
| 1 | P | cardtty:TouchCell_1u | SW11 |
| 1 | Q | cardtty:TouchCell_1u | SW2 |
| 1 | R | cardtty:TouchCell_1u | SW5 |
| 1 | S | cardtty:TouchCell_1u | SW17 |
| 1 | Shift | cardtty:TouchCell_2u | SW24 |
| 1 | Space | cardtty:TouchCell_4u | SW32 |
| 1 | T | cardtty:TouchCell_1u | SW6 |
| 1 | TAB | cardtty:TouchCell_1u | SW13 |
| 1 | U | cardtty:TouchCell_1u | SW8 |
| 1 | V | cardtty:TouchCell_1u | SW31 |
| 1 | W | cardtty:TouchCell_1u | SW3 |
| 1 | X | cardtty:TouchCell_1u | SW27 |
| 1 | Y | cardtty:TouchCell_1u | SW7 |
| 1 | Z | cardtty:TouchCell_1u | SW25 |
| 1 | ~ | PCB_USBC:PCBTypeC_24P | J1 |
Questions
How big is the Cardtty PCB?
It measures 85.6 × 54 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cardtty use?
62 parts, built around the CH32X035G8U6, LP5907SNX-3.3, NT3H2111W0FHKH and KT-0603R. 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 Cardtty KiCad files?
From the luftaquila/cardtty repository on GitHub, at the commit this page was made from: the board is hardware/cardtty.kicad_pcb and its schematic hardware/cardtty.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cardtty design in my own project?
Its repository states no licence, so its author keeps all rights: ask luftaquila before reusing the design.
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