2 layers101.1 × 70 mm
4 layers64.5 × 0.1 mm
Pebble
Yatekii/pebble- Size
- 64.5 × 0.1 mm
- Copper layers
- 4
- Thickness
- 1.71 mm
- Parts
- 167
- Nets
- 154
- Pads
- 636
- Tracks, vias
- 1,127, 396
- Pours
- 25
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Nov 2025
- Updated
- 24 Aug 2026
Overview
Pebble is an open-source printed circuit board by Yatekii, from the Yatekii/pebble repository on GitHub. It is a 4-layer board of 64.5 × 0.1 mm with 167 parts on 154 nets, routed with 1,127 tracks and 396 vias.
It is built around the LPV521MG, MAX-M8Q-0 and BMM350, with the BMI270, ESP32-C6-MINI-1 and MAX4906ELB+T among its other parts. Its parts include 74 diodes, 35 capacitors, 29 resistors, 9 ICs and 7 connectors. It belongs with the ESP32 and RISC-V boards of this library.
Main components
10
LPV521MG
SC-70-5-40℃~+125℃ 0.04pA 1 1.6V~5.5V 15mA 1mV 2.4V/ms 255nV/√Hz@100Hz 351nA 400nV/℃ 6.2kHz 92dB Built-in compensation、EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SC-70-5 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
MAX-M8Q-0
SMD-18P-167dBm -40℃~+85℃ 2.7V~3.6V GPS、BeiDou、Galileo、GLONASS UART、I2C SMD-18P GNSS Modules ROHSu-bloxGNSS Modules
BMM350
WLCSP-9(1.3x1.3)-40℃~+85℃ 1.72V~1.98V 200uA I2C、SPI ±2mT ±2mT、- WLCSP-9(1.3x1.3) 3D Magnetic Sensors ROHSBosch SensortecSpecialized Sensors
BMI270
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 16bit 2KB 3.5uA Accelerometer Gyroscope SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps LGA-14(2.5x3) Accelerometers ROHSBosch SensortecAccelerometers
ESP32-C6-MINI-1
SMD,13.2x16.6mmSMD,13.2x16.6mm New Arrivals ROHSEspressif SystemsUncategorised
MAX4906ELB+T
UDFN-10(2x2)-40℃~+85℃ 1GHz 2 250ps 2:1 30ns 3V~3.6V 4Ω 60ns 6pF UDFN-10(2x2) Analog Switches, Multiplexers ROHSMaxim Integrated (Analog Devices)Analog Switches, Multiplexers
MAX77751CEFG+
FC2QFN-24(3x3)-40℃~+85℃ 1 3.15A 4.2V 4.5V~13.7V 50uA Charging IC Lithium Battery Not supported Support FC2QFN-24(3x3) Battery Management ROHSMaxim Integrated (Analog Devices)Battery Management
WS2812B-2020
SMD,2.2x2mm0.6mA 0.84mm 120us 160mcd 200mcd 2kHz 2mm 2mm 300ns 470.4nm 515.6nm 520mcd 5V 622.5nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit、Integrated intelligent reverse connection protection function Top-mount SMD,2.2x2mm RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
BSS123
SOT-23-55℃~+150℃ 1 N-channel 1.4V 1.4nC@10V 100V 170mA 22pF 2pF 3.5pF 680mW 6Ω@10V、10Ω@4.5V N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETsBSS84
SOT-23-55℃~+150℃ 1 P-Channel 130mA 2.8pF 24.6pF 2V 3.2Ω@5V 300mW 4.7pF 50V 590pC@10V SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
Parts
167| Qty | Value | Footprint | References |
|---|---|---|---|
| 72 | WS2812B-2020 | LED_SMD:LED_WS2812B-2020_PLCC4_2.0x2.0mm | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +56 |
| 12 | 100n | Capacitor_SMD:C_0402_1005Metric | C4, C6, C9, C10, C11, C12, C13, C14, C16, C19, C20, C34 |
| 10 | 100k | Resistor_SMD:R_0402_1005Metric | R1, R4, R5, R9, R10, R11, R12, R22, R24, R25 |
| 5 | 22u | Capacitor_SMD:C_0603_1608Metric | C2, C3, C7, C8, C15 |
| 4 | 4.7k | Resistor_SMD:R_0402_1005Metric | R26, R27, R28, R29 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 0 | Resistor_SMD:R_0402_1005Metric | R2, R6, R21 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric | C27, C28, C29 |
| 3 | 2.2u | Capacitor_SMD:C_0402_1005Metric | C17, C22, C23 |
| 2 | 10M | Resistor_SMD:R_0402_1005Metric | R18, R20 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R7, R23 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C1, C5 |
| 2 | 1n | Capacitor_SMD:C_0402_1005Metric | C18, C32 |
| 2 | BOOT | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | JP1, JP2 |
| 2 | ON | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | J6, J7 |
| 1 | 0.47uH | kicad-symbols:IND_SRP2512TMA_BRN | L4 |
| 1 | 10 | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric | C25 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C26 |
| 1 | 13.3k | Resistor_SMD:R_0402_1005Metric | R17 |
| 1 | 14k | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric | R19 |
| 1 | 1k2 | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 1n | Capacitor_SMD:C_1206_3216Metric | C21 |
| 1 | 1u | Inductor_SMD:L_Coilcraft_XxL4040 | L1 |
| 1 | 2.2u | kicad-symbols:IND_SPM6530_TDK | L2 |
| 1 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C24 |
| 1 | 220p | Capacitor_SMD:C_0402_1005Metric | C33 |
| 1 | 22u | Capacitor_SMD:C_0805_2012Metric | C30 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C31 |
| 1 | 27n | Inductor_SMD:L_0402_1005Metric_Pad0.77x0.64mm_HandSolder | L3 |
| 1 | 33.2k | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | 470 | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 732k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | Amber | LED_SMD:LED_0603_1608Metric | D73 |
| 1 | BAT | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | J4 |
| 1 | BMI270 | kicad-symbols:BMI270_BOS | U4 |
| 1 | BMM350 | kicad-symbols:BGA9_BMM350_BOS | U6 |
| 1 | BSS123 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | BSS84 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_Horizontal | J5 |
| 1 | DNP | Capacitor_SMD:C_0402_1005Metric | C35 |
| 1 | ESP32-C6-MINI-1 | RF_Module:ESP32-C6-MINI-1 | U3 |
| 1 | GPS | Connector_Coaxial:U.FL_Molex_MCRF_73412-0110_Vertical | J2 |
| 1 | LPV521 | Package_TO_SOT_SMD:SOT-23-5 | U8 |
| 1 | MAX-M8Q | RF_GPS:ublox_MAX | U5 |
| 1 | MAX4906ELB+T | kicad-symbols:21-0164_L1022&plus_1_MXM | U9 |
| 1 | MAX77751CEFG+ | kicad-symbols:MAX77751CEFG+ | U7 |
| 1 | SW_Reed | kicad-symbols:59170-1-S-00-D | SW1 |
| 1 | TPS563200 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | TPS61023DRLR | Package_TO_SOT_SMD:SOT-563 | U1 |
| 1 | UART | Connector_PinHeader_1.27mm:PinHeader_1x04_P1.27mm_Vertical | J1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7051x | J3 |
| 1 | White | LED_SMD:LED_0603_1608Metric | D74 |
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Questions
How big is the Pebble PCB?
It measures 64.5 × 0.1 mm and has 4 copper layers, 1.71 mm thick.
What parts does the Pebble use?
167 parts, built around the LPV521MG, MAX-M8Q-0, BMM350 and BMI270. 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 Pebble KiCad files?
From the Yatekii/pebble repository on GitHub, at the commit this page was made from: the board is hardware/pebble.kicad_pcb and its schematic hardware/pebble.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pebble design in my own project?
Its repository states no licence, so its author keeps all rights: ask Yatekii before reusing the design.