4 layers40 × 20 mm
4 layers89.8 × 64 mm
Stinger V2.0
Project-Stinger/Electronics4Electronics for Stinger foam dart blasters
- Size
- 89.8 × 64 mm
- Copper layers
- 4
- Thickness
- 1.2 mm
- Parts
- 126
- Nets
- 105
- Pads
- 595
- Tracks, vias
- 1,008, 362
- Pours
- 21
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 8 Jul 2025
- Updated
- 11 Oct 2025
Overview
Stinger V2.0 is an open-source printed circuit board by Project-Stinger, from the Project-Stinger/Electronics repository on GitHub. It is a 4-layer board of 89.8 × 64 mm with 126 parts on 105 nets, routed with 1,008 tracks and 362 vias.
It is built around the RP2040, LM5060MM and LMV321, with the W25Q16JVUXIQ, 74LVC1G3157 and AMS1117-3.3 among its other parts. Its parts include 36 capacitors, 32 resistors, 14 connectors, 10 ICs and 10 diodes. It belongs with the RP2040 boards of this library.
Main components
12
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
LM5060MM
VSSOP-10-0.5mm-40℃~+125℃ 5.5V~65V Active Low 过压保护、欠压锁定、集成电荷泵、Overcurrent Protection、锁存保护 VSSOP-10-0.5mm Power Distribution Switches ROHSTexas InstrumentsGate Drivers
LMV321
SOT-23-5L-2.75V~-1.25V、1.25V~2.75V 0℃~+70℃ 1 10pA 10pA 1MHz 2.1V~5.5V 20mA 20nV/√Hz@10kHz 520V/ms 60uA 70dB 800uV Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5L Operational Amplifier ROHSJiangsu Changjing Electronics Technology (CJ)Operational Amplifier
W25Q16JVUXIQ
USON-8-EP(2x3)-40℃~+85℃ 100,000 cycles 10uA 133MHz 16Mbit 2.7V~3.6V 20 Years 3ms SPI USON-8-EP(2x3) NOR FLASH ROHSWinbond ElecNOR FLASH74LVC1G3157
UncategorisedDiodes Incorporated
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
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
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A 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)
1N4148WS
SOD-3231.25V@150mA 100V 150mA 1uA@75V 200mW 2A 4ns Independent SOD-323 Switching Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Switching Diodes
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
BSC105N10LSF G
TDSON-8-55℃~+150℃ 1 N-channel 1.2V 10.5mΩ@10V 100V 14pF 156W 3.9nF 53nC@10V 57A TDSON-8 MOSFETs ROHSInfineon TechnologiesMOSFETs
README
README.mdStinger Electronics
This repository contains the electronics for the Stinger foam dart blaster. The main parts are:
- RP2040 microcontroller with 2MB flash
- Gyro sensor (BMI270)
- Rapid decay solenoid driver (DRV8243)
- 5V step-down and 3.3V LDO
- Standby power switch
- TOF (Time of Flight) sensor (VL53L0X)
- Display output (SPI) and speaker output (PWM)
- USB-C for firmware updates and ESC-passthrough
- 2 adressable RGB LEDs (WS2812B)
- Schmitt trigger for the trigger input
- Analog buffer for the ADC inputs
- Upgrade port for future hardware upgrades (I2C or UART)
Documentation
Documentation for Stinger is provided in the Stinger-Docs wiki.
How to make your own
To make your own electronics, you will need to:
- Order the PCB from a PCB manufacturer using the provided Gerber files (e.g. JLCPCB)
- Order the components from a distributor using the provided BOM (LCSC recommended for most components, or get your PCB assembled by the PCB manufacturer)
- Assemble the PCB (soldering required, or use a reflow oven for SMD components)
- Solder the THT components (Speaker, XT30, ESC, button, TOF) and underside LEDs to the PCB
- Flash the firmware to the RP2040
Because purchase links regularly change, you will need to search for the components yourself:
- Speaker: 64 Ohm, 4mm pitch, magnetic type
- Button: Usually called "tactile switch" or "push button", usually the 6mm x 6mm type
- TOF: VL53L0X, the typical breakout board, available from various distributors
- Joystick: PSP1000 type
At last, please note that this work is licensed under the Creative Commons BY-NC-SA License. This means you can use the designs for non-commercial purposes, but you must give appropriate credit and share any derivative works under the same license. Also be aware that it is usually cheaper to buy the electronics because of many custom parts. The PCB is mainly provided for educational purposes and to allow you to make your own modifications or repairs.
Missing something?
This project is still in the early stages of making the source available. If you feel like something is missing in order to make this repo accessible, please open an issue or ask in the discussion forum.
Parts
126| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C4, C5, C6, C7, C10, C13, C16, C17, C18, C19, C20, C24, C37 +2 |
| 12 | TestPoint_Probe | TestPoint:TestPoint_Pad_D1.5mm | TP1, TP2, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13 |
| 9 | 10k | Resistor_SMD:R_0402_1005Metric | R6, R8, R9, R11, R12, R18, R20, R22, R29 |
| 5 | 100k | Resistor_SMD:R_0402_1005Metric | R5, R14, R16, R17, R31 |
| 4 | 1µF | Capacitor_SMD:C_0402_1005Metric | C11, C12, C14, C15 |
| 4 | 22µF | Capacitor_SMD:C_0805_2012Metric | C23, C26, C27, C28 |
| 4 | 5.1k | Resistor_SMD:R_0402_1005Metric | R3, R4, R10, R24 |
| 4 | ~ | components:big pad | P1, P2, P3, P4 |
| 3 | 10µF | Capacitor_SMD:C_1206_3216Metric | C38, C39, C40 |
| 2 | 10µF | Capacitor_SMD:C_0603_1608Metric | C33, C34 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R7, R15 |
| 2 | 27R | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | 4.7k | Resistor_SMD:R_0402_1005Metric | R27, R28 |
| 2 | 510 | Resistor_SMD:R_0402_1005Metric | R21, R23 |
| 2 | Conn_01x01 | Connector_PinHeader_2.00mm:PinHeader_1x01_P2.00mm_Vertical | J4, J5 |
| 2 | LED | LED_SMD:LED_0402_1005Metric | D8, D9 |
| 2 | SS34 | Diode_SMD:D_SMA | D6, D7 |
| 2 | WS2812B-2020 | LED_SMD:LED_WS2812B-2020_PLCC4_2.0x2.0mm | D10, D11 |
| 2 | ~ | components:medium pad | P5, P6 |
| 1 | 1.25A | Fuse:Fuse_0603_1608Metric | F1 |
| 1 | 100K | Resistor_SMD:R_0402_1005Metric | R26 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C36 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C22 |
| 1 | 12MHz | Oscillator:Oscillator_SMD_Abracon_ASE-4Pin_3.2x2.5mm | X1 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric | R19 |
| 1 | 1N4148WS | Diode_SMD:D_SOD-323 | D4 |
| 1 | 220nF | Capacitor_SMD:C_0402_1005Metric | C35 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | 3.3µH | Inductor_SMD:L_Cenker_CKCS3015 | L1 |
| 1 | 31K | Resistor_SMD:R_0402_1005Metric | R32 |
| 1 | 330pF | Capacitor_SMD:C_0402_1005Metric | C25 |
| 1 | 4.7µF | Capacitor_SMD:C_1206_3216Metric | C21 |
| 1 | 40A | components:Fuse_10032Metric | F2 |
| 1 | 51k | Resistor_SMD:R_0402_1005Metric | R25 |
| 1 | 700 | Resistor_SMD:R_0402_1005Metric | R30 |
| 1 | 70k | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 74LVC1G3157 | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U13 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U11 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | BMI270 | Package_LGA:Bosch_LGA-14_3x2.5mm_P0.5mm | U5 |
| 1 | BSC105N10LSFG | Package_TO_SOT_SMD:TDSON-8-1 | Q1 |
| 1 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | Conn_01x04_MountingPin | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J7 |
| 1 | Conn_01x06_MountingPin | Connector_JST:JST_SH_BM06B-SRSS-TB_1x06-1MP_P1.00mm_Vertical | J8 |
| 1 | Conn_01x08_MountingPin | Connector_JST:JST_SH_BM08B-SRSS-TB_1x08-1MP_P1.00mm_Vertical | J2 |
| 1 | Conn_01x08_MountingPin | Connector_FFC-FPC:Hirose_FH12-8S-0.5SH_1x08-1MP_P0.50mm_Horizontal | J3 |
| 1 | D_Schottky | Diode_SMD:D_SMA | D1 |
| 1 | D_Schottky | Diode_SMD:D_SMC | D3 |
| 1 | D_Schottky | Diode_SMD:D_SOD-123 | D2 |
| 1 | LM5060 | Package_SO:VSSOP-10_3x3mm_P0.5mm | U16 |
| 1 | LMR14020 | Package_SO:HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.1mm_ThermalVias | U7 |
| 1 | LMV321 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | Opamp_Quad | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U4 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1 |
| 1 | TestPoint_Probe | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | USB_C_Receptacle_USB2.0_16P | components:USB-C | J1 |
| 1 | W25Q16JVUXIQ | Package_SON:Winbond_USON-8-1EP_3x2mm_P0.5mm_EP0.2x1.6mm | U2 |
| 1 | WE-TVS-824015043 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | ~ | components:button trigger | BN2 |
| 1 | ~ | components:QFN14-3x4.5_sharedPads | DR1 |
| 1 | ~ | components:button | BN1 |
Questions
How big is the Stinger V2.0 PCB?
It measures 89.8 × 64 mm and has 4 copper layers, 1.2 mm thick.
What parts does the Stinger V2.0 use?
126 parts, built around the RP2040, LM5060MM, LMV321 and W25Q16JVUXIQ. 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 Stinger V2.0 KiCad files?
From the Project-Stinger/Electronics repository on GitHub, at the commit this page was made from: the board is V2 PCB/Stinger V2.0.kicad_pcb and its schematic V2 PCB/Stinger V2.0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Stinger V2.0 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Project-Stinger before reusing the design.
Similar boards
- 4 layers63.6 × 86 mm
BECom
rjsc/BECom
BECom - Battery Emulator Companion - Open Source Hardware, designed to run dalathegreat/Battery-Emulator
276 parts2GPL-3.0 - 2 layers37.5 × 45 mm
Dianome
motionlayer/Dianome
Docs, Schematic and Board file for the Dianome PDB
49 parts10CERN-OHL-W-2.0 - 2 layers45 × 45 mm
- 2 layers53.1 × 36.3 mm
- 4 layers210 × 100 mm
- 4 layers90 × 95 mm
Wiegand bridge
EdgeCoil/wiegand-bridge
ESP32-S3 Wiegand reader bridge for Home Assistant: 4-layer board, BOM and ESPHome firmware.
197 parts1 - 4 layers75.2 × 99.5 mm
FOC
nordstream3/FOC
Date | Manufacturer | amount | includes | shipping & tax | price | -------- | -------- | -------- | -------- | -------- | -------- | 2024-01-17 | JLCPCB | 10 boards | All assembled excl fets and caps | YES, to EU |…
261 parts81