4 layers50 × 50 mm
Fpgaboy
Wren6991/RISCBoy
Portable games console, designed from scratch: CPU, graphics, PCB, and the kitchen sink
93 parts513
2 layers56 × 15.6 mm
Laser rifle
Dade3e/laser_rifle- Size
- 56 × 15.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 20
- Pads
- 103
- Tracks, vias
- 42, 18
- Pours
- 10
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 21 Feb 2024
- Updated
- 3 Jul 2025
Overview
Laser rifle is an open-source printed circuit board by Dade3e, from the Dade3e/laser_rifle repository on GitHub. It is a 2-layer board of 56 × 15.6 mm with 29 parts on 20 nets, routed with 42 tracks and 18 vias.
It is built around the ATTINY85V-10PU, BQ21040DBV and MMBT3904. Its parts include 8 resistors, 6 capacitors, 3 ICs, 3 diodes and 3 switches. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATTINY85V-10PU
PDIP-8-40℃~+85℃ 1.8V~5.5V 10MHz 10bit 512Byte 512Byte 6 8 Bit 8KB AVR Built-in FLASH PDIP-8 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
BQ21040DBV
SOT-23-60℃~+125℃ 1 125uA 3.5V~28V 4.2V 800mA Charging IC Support SOT-23-6 Battery Management ROHSTexas InstrumentsBattery Management
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C6, C7 |
| 2 | 5K1 | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D2, D3 |
| 2 | LOGO | laser_rifle:laser | G***, G*** |
| 1 | 0.1uF | Resistor_SMD:R_0603_1608Metric | C4 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 10uF | Resistor_SMD:R_0603_1608Metric | C3 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 1k5 | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 220R | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 330R | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | ATtiny85V-10P | Package_DIP:DIP-8_W7.62mm | U2 |
| 1 | BQ21040 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U3 |
| 1 | Battery_Cell | Connector_Hirose:Hirose_DF13C_CL535-0402-2-51_1x02-1MP_P1.25mm_Vertical | BT2 |
| 1 | LED | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | D1 |
| 1 | MCP1700x-300xxTT | Package_TO_SOT_SMD:SOT-23 | U1 |
| 1 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | SW_DIP_x01 | Button_Switch_THT:SW_CK_JS202011CQN_DPDT_Straight | SW3 |
| 1 | SW_DIP_x01 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | SW2 |
| 1 | SW_DIP_x01 | Button_Switch_THT:SW_Slide_SPDT_Straight_CK_OS102011MS2Q | SW1 |
| 1 | Screw_Terminal_01x02 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J1 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_GCT_USB4115-03-C | J3 |
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Questions
How big is the Laser rifle PCB?
It measures 56 × 15.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Laser rifle use?
29 parts, built around the ATTINY85V-10PU, BQ21040DBV and MMBT3904. 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 Laser rifle KiCad files?
From the Dade3e/laser_rifle repository on GitHub, at the commit this page was made from: the board is Kicad/laser_rifle/laser_rifle.kicad_pcb and its schematic Kicad/laser_rifle/laser_rifle.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Laser rifle design in my own project?
Its repository states no licence, so its author keeps all rights: ask Dade3e before reusing the design.