2 layers65.3 × 110 mm
2 layers235 × 45 mm
EosEncoderBoard
ndebruin/lightBoardEncoders- Size
- 235 × 45 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 75
- Nets
- 89
- Pads
- 303
- Tracks, vias
- 639, 77
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 24 Nov 2025
- Updated
- 7 Aug 2026
Overview
EosEncoderBoard is an open-source printed circuit board by ndebruin, from the ndebruin/lightBoardEncoders repository on GitHub. It is a 2-layer board of 235 × 45 mm with 75 parts on 89 nets, routed with 639 tracks and 77 vias.
It is built around the PCA9548ADB, USBLC6-2SC6 and OSC16M-3.3I/S3T. Its parts include 28 resistors, 11 capacitors, 11 switches, 8 diodes and 4 ICs. It belongs with the STM32 boards of this library.
Main components
3
PCA9548ADB
SSOP-24-208mil2.3V~5.5V I2C、SMBus SSOP-24 Interface - Specialized ROHSTexas InstrumentsInterface - Specialized
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)
OSC16M-3.3I/S3T
SMD3225-4PCrystal OscillatorsYIC
Parts
75| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R28 +4 |
| 8 | 150 | Resistor_SMD:R_0603_1608Metric | R20, R21, R22, R23, R24, R25, R31, R32 |
| 6 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C8, C11 |
| 4 | RotaryEncoder | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW1, SW2, SW3, SW4 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | RUSB1, RUSB2 |
| 1 | 1.0u | Inductor_SMD:L_1008_2520Metric | L1 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | RFB2 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 22u | Capacitor_SMD:C_0603_1608Metric | C10 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C9 |
| 1 | 453k | Resistor_SMD:R_0603_1608Metric | RFB1 |
| 1 | 4A | Diode_SMD:D_SOD-923 | D8 |
| 1 | COLOR | SwitchLED:SW_Cherry_MX_PCB_1.00u_LED0603 | SW9 |
| 1 | COLOR | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | DEBUG | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J2 |
| 1 | Display1 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | DP1 |
| 1 | Display2 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | DP2 |
| 1 | Display3 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | DP3 |
| 1 | Display4 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | DP4 |
| 1 | EXTRA | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J3 |
| 1 | FOCUS | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | FOCUS | SwitchLED:SW_Cherry_MX_PCB_1.00u_LED0603 | SW7 |
| 1 | FORM | SwitchLED:SW_Cherry_MX_PCB_1.00u_LED0603 | SW6 |
| 1 | FORM | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | IMAGE | SwitchLED:SW_Cherry_MX_PCB_1.00u_LED0603 | SW8 |
| 1 | IMAGE | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | INTENS | SwitchLED:SW_Cherry_MX_PCB_1.00u_LED0603 | SW5 |
| 1 | INTENS | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D7 |
| 1 | OSC16M-3.3I/S3T | Oscillator:Oscillator_SMD_Abracon_ASE-4Pin_3.2x2.5mm | Y1 |
| 1 | PCA9548ADB | Package_SO:SSOP-24_5.3x8.2mm_P0.65mm | U2 |
| 1 | SHUTTER | SwitchLED:SW_Cherry_MX_PCB_1.00u_LED0603 | SW10 |
| 1 | SHUTTER | LED_SMD:LED_0603_1608Metric | D6 |
| 1 | STM32L072CZT6TR | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW11 |
| 1 | TPS62A01DRLR | Package_TO_SOT_SMD:SOT-563 | U3 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
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Questions
How big is the EosEncoderBoard PCB?
It measures 235 × 45 mm and has 2 copper layers, 1.6 mm thick.
What parts does the EosEncoderBoard use?
75 parts, built around the PCA9548ADB, USBLC6-2SC6 and OSC16M-3.3I/S3T. 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 EosEncoderBoard KiCad files?
From the ndebruin/lightBoardEncoders repository on GitHub, at the commit this page was made from: the board is kicad/eosEncoderBoard.kicad_pcb and its schematic kicad/eosEncoderBoard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EosEncoderBoard design in my own project?
Its repository states no licence, so its author keeps all rights: ask ndebruin before reusing the design.