4 layers70 × 70 mm
4 layers50 × 50 mm
Sending Pebble
CohenMurray/SRAD-Telemetry-PCB1- Size
- 50 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 65
- Nets
- 78
- Pads
- 276
- Tracks, vias
- 328, 121
- Pours
- 17
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 24 Oct 2024
- Updated
- 25 Oct 2025
Overview
Sending Pebble is an open-source printed circuit board by CohenMurray, from the CohenMurray/SRAD-Telemetry-PCB repository on GitHub. It is a 4-layer board of 50 × 50 mm with 65 parts on 78 nets, routed with 328 tracks and 121 vias.
It is built around the LORA-E5-HF, BMP390 and TPS63001DRC, with the W25Q32JVSSIQ, BQ24072RGTR and MAX-M10S among its other parts. Its parts include 19 resistors, 16 capacitors, 7 ICs, 6 connectors and 4 diodes.
Main components
10
LORA-E5-HF
SMD,12x12mmSMD,12x12mm LoRa Modules ROHSSeeedLoRa Modules
BMP390
LGA-10(2x2)-40℃~+85℃ 0.6pa/K 1.5uA 1.65V~3.6V 30Kpa~1.25bar 3pa 50pa I2C、SPI Integrated ADC and digital interface、Standby mode、On-chip temperature output Yes LGA-10(2x2) Pressure Sensors ROHSBosch SensortecPressure Sensors
TPS63001DRC
VSON-10-EP(3x3)-40℃~+85℃@(TA) 1 1.5MHz 1.8V~5.5V 3.3V 50uA Buck-Boost Buck-Boost Built-in Fixed Yes VSON-10-EP(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
W25Q32JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 133MHz 1uA 2.7V~3.6V 20 Years 32Mbit 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
BQ24072RGTR
QFN-16-EP(3x3)-40℃~+125℃ 1 1.5A 1.5mA 4.2V 4.35V~6.6V Charging IC Lithium Battery Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
MAX-M10S
LCC-18_10.1X9.7LCC-18_10.1X9.7 New Arrivals ROHSu-bloxUncategorised
IRLML0030
SOT-23-55℃~+150℃ 1 N-channel 2.3V 2.6nC 27mΩ@10V 30V 382pF 39pF 5.3A SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
MBR0530T1G
SOD-123Schottky DiodesFUXINSEMI
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
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)
Parts
65| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | Capacitor_SMD:C_0603_1608Metric | C6, C7, C8, C9, C10 |
| 4 | 10uF | Capacitor_SMD:C_0603_1608Metric | C5, C13, C14, C16 |
| 3 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C11, C12, C15 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R2, R15, R18 |
| 2 | 100 | Resistor_SMD:R_0603_1608Metric | R13, R17 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric | R11, R12 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R6 |
| 2 | 4.7k | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R7, R8 |
| 1 | 1.1k | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 1.27k | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 10 | Capacitor_SMD:C_0402_1005Metric | R19 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 27nH | Capacitor_SMD:C_0402_1005Metric | L2 |
| 1 | 2k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 36k | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 47pF | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | BMP390 | BMP390:10LGA_2X2X0p75_BOS | U4 |
| 1 | BQ24072RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U7 |
| 1 | Battery_Cell | Battery:BatteryHolder_Seiko_MS621F | BT1 |
| 1 | Boot | Button_Switch_SMD:SW_SPST_PTS810 | BOOT0 |
| 1 | Buzzer | Buzzer_Beeper:MagneticBuzzer_PUI_SMT-1028-T-2-R | BZ1 |
| 1 | CP2102N-Axx-xQFN24 | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U6 |
| 1 | Conn_01x02_Socket | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | PWR0 |
| 1 | Conn_01x02_Socket | Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J2 |
| 1 | Conn_01x03_Socket | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | Conn_01x03_Socket | Connector_JST:JST_XH_B3B-XH-AM_1x03_P2.50mm_Vertical | J5 |
| 1 | IRLML0030 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | L | LQH3NPN2R2MMEL:IND_LQH3NPN2R2MMEL | L1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LOGO | Stone:stone_footprint | G*** |
| 1 | LoRa-E5 | LoRa-E5:LoRa-E5 | U1 |
| 1 | MAX-M10S | RF_GPS:ublox_MAX | U3 |
| 1 | MBR0530T1G | Diode_SMD:D_SOD-123 | D1 |
| 1 | Reset | Button_Switch_SMD:SW_SPST_PTS810 | RESET0 |
| 1 | SMA | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | J4 |
| 1 | SS14 | Diode_SMD:D_SMA | D4 |
| 1 | TPS63001 | Package_SON:Texas_DRC0010J_ThermalVias | U2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J1 |
| 1 | W25Q32JVSS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U5 |
| 1 | WS2812B-2020 | LED_SMD:LED_WS2812B-2020_PLCC4_2.0x2.0mm | D3 |
| 1 | u.Fl | Connector_Coaxial:U.FL_Hirose_U.FL-R-SMT-1_Vertical | J3 |
The 61 most common of 65 parts.
More from CohenMurray/SRAD-Telemetry-PCB
2- 2 layers70 × 70 mm
Similar boards
- 4 layers90 × 124.3 mm
- 4 layers40.1 × 82.8 mm
FlightPCB
Shubhamai/tsar
General-purpose & fully programmable flight computer PCB desgined in KiCad EDA
143 parts - 4 layers54 × 120 mm
Kartonaut
Jan-Philipp-Munsch/kartonaut
TVC model rocket (after BPS.space Scout F): Teensy 4.1 flight firmware, mainboard spec, project log
174 partsMIT - 6 layers48 × 40 mm
- 2 layers33.3 × 54.5 mm
- 2 layers127.3 × 82.2 mm
Little red rover
little-red-rover/lrr-hardware
Hardware design files for Little Red Rover.
65 parts1CERN-OHL-W-2.0 - 4 layers98.5 × 193.5 mm
- 2 layers91.5 × 100 mm
Trailmap
katetriestocode/trailmap
this is the working version! (disclaimer: no antenna as it has not delivered yet, so manual gps coords insertion for now!)
57 parts2
Questions
How big is the Sending Pebble PCB?
It measures 50 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Sending Pebble use?
65 parts, built around the LORA-E5-HF, BMP390, TPS63001DRC and W25Q32JVSSIQ. 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 Sending Pebble KiCad files?
From the CohenMurray/SRAD-Telemetry-PCB repository on GitHub, at the commit this page was made from: the board is PCB/Sending Pebble/Sending Pebble/Sending Pebble.kicad_pcb and its schematic PCB/Sending Pebble/Sending Pebble/Sending Pebble.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sending Pebble design in my own project?
Its repository states no licence, so its author keeps all rights: ask CohenMurray before reusing the design.