2 layers58.4 × 141 mm
Segment Display Board
FRC-1721/AccidentCounter
A digital sign hung in the build space advertising days without incident
94 parts1
2 layers93.1 × 158.3 mm
MegaMouse
KenwoodFox/MegaMouse3MegaMouse! An atmega 328p powered micromouse!
- Size
- 93.1 × 158.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 136
- Nets
- 116
- Pads
- 499
- Tracks, vias
- 859, 226
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 1 Mar 2023
- Updated
- 4 Dec 2025
Overview
MegaMouse is an open-source printed circuit board by KenwoodFox, from the KenwoodFox/MegaMouse repository on GitHub, published under the MIT licence. It is a 2-layer board of 93.1 × 158.3 mm with 136 parts on 116 nets, routed with 859 tracks and 226 vias.
It is built around the ATMEGA328-PU, DRV8871DDA and FT232RL, with the SN74HC595D and MBR0520 among its other parts. Its parts include 36 resistors, 17 capacitors, 12 diodes, 8 ICs and 6 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
5
ATMEGA328-PU
PDIP-28-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH PDIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
DRV8871DDA
SO-8-EP-40℃~+125℃ 1 10uA 3.6A 565mΩ PWM Yes SO-8-EP Brushed DC Motor Drivers ROHSTexas InstrumentsStepper Motor Driver
FT232RL
SSOP-28-208mil-40℃~+85℃ 3.3V~5.25V、4V~5.25V USB 2.0 USB to UART SSOP-28-208mil USB Converters ROHSFTDIUSB Converters
SN74HC595D
SOIC-16-40℃~+85℃ 1 26ns@6V,50pF 29MHz 2V~6V 6mA 74HC 8 Serial-to-Serial or Parallel Tri-State SOIC-16 Shift Registers ROHSTexas InstrumentsShift Registers
MBR0520
SOD-123-55℃~+150℃ 20V 450mV@500mA 5.5A 500mA Independent SOD-123 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky Diodes
README
README.md
MegaMouse
MegaMouse! An atmega 328p powered micromouse!
Getting Started
First, begin by cloning this repo and relevant submodules
git clone --recurse-submodules https://github.com/KenwoodFox/MegaMouse.gitFind hardware, software and docs in the directories below!
.
├── CAD # CAD and 3D models
├── Firmware # Firmware and on-board code
├── Hardware # Hardware and design files
│ └── MegaMouse # PCB Design Files
│ └── Libraries # KiCAD libraries
└── Static # Static filesTag Naming System
v1.3
││ │
││ └─ Intermediete revision (reivew, software, minor change)
│└─── Major revision (hardware change, incompatable modification)
└──── Releasable VersionParts
136| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 1K | Resistor_SMD:R_0805_2012Metric | R101, R102, R103, R104, R401, R402, R403, R501, R607, R608, R609, R610, R611, R612, R613, R614 +2 |
| 11 | 100nF | Capacitor_SMD:C_0805_2012Metric | C202, C302, C401, C402, C405, C502, C601, C602, C603, C604, C605 |
| 9 | Stripes | MegaMouse:Stripes | Stripes, Stripes, Stripes, Stripes, Stripes, Stripes, Stripes, Stripes, Stripes |
| 8 | MountingHole_Pad | MountingHole:MountingHole_3mm_Pad | H101, H102, H103, H104, H601, H602, H603, H604 |
| 5 | 10K | Resistor_SMD:R_0805_2012Metric | R404, R604, R703, R803, R903 |
| 5 | TestPoint | TestPoint:TestPoint_Pad_2.0x2.0mm | TP401, TP402, TP403, TP404, TP405 |
| 4 | VAL** | Panelization:mouse-bite-5mm-slot | mouse-bite-5mm-slot, mouse-bite-5mm-slot, mouse-bite-5mm-slot, mouse-bite-5mm-slot |
| 3 | 10K | Potentiometer_SMD:Potentiometer_Bourns_TC33X_Vertical | RV701, RV801, RV901 |
| 3 | 10uf | Capacitor_SMD:CP_Elec_4x3 | C201, C301, C501 |
| 3 | 330R | Resistor_SMD:R_0805_2012Metric | R701, R801, R901 |
| 3 | DNP | Resistor_SMD:R_0805_2012Metric | R702, R802, R902 |
| 3 | IR_LED | LED_THT:LED_D5.0mm_Horizontal_O1.27mm_Z3.0mm_Clear | D702, D802, D902 |
| 3 | LOGO | MegaMouse:PhotoDiodeLOGO | G***, G***, G*** |
| 3 | LOGO | MegaMouse:LEDLOGO | G***, G***, G*** |
| 3 | PhotoDiode | LED_THT:LED_D5.0mm_Horizontal_O1.27mm_Z3.0mm_IRBlack | D701, D801, D901 |
| 3 | Screw Adjust Hole | MountingHole:MountingHole_3mm | H701, H801, H901 |
| 2 | 15k | Resistor_SMD:R_0805_2012Metric | R201, R301 |
| 2 | 22R | Resistor_SMD:R_0805_2012Metric | R605, R606 |
| 2 | 22pf | Capacitor_SMD:C_0603_1608Metric | C403, C404 |
| 2 | 5K1 | Resistor_SMD:R_0805_2012Metric | R601, R602 |
| 2 | DRV8871DDA | Package_SO:Texas_HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.4x3.1mm_ThermalVias | U201, U301 |
| 2 | LOGO | KenwoodFox:KITSUNE_LOGO | G***, G*** |
| 2 | Motor | MegaMouse:MicroMotor | J201, J301 |
| 2 | SN74HC595 | KenwoodFox:SN74HC595 | U402, U602 |
| 2 | ~ | MegaMouse:MegaInterconnect | J101, J105 |
| 1 | 16mHz | Crystal:Crystal_SMD_HC49-SD | Y401 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C503 |
| 1 | 4K7 | Resistor_SMD:R_0805_2012Metric | R603 |
| 1 | ATmega328P | Package_QFP:TQFP-32_7x7mm_P0.8mm | U401 |
| 1 | Cell1 | Battery:BatteryHolder_MPD_BH-18650-PC2 | BT501 |
| 1 | Cell2 | Battery:BatteryHolder_MPD_BH-18650-PC2 | BT502 |
| 1 | FT232RL | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U601 |
| 1 | ICSP | Connector:Tag-Connect_TC2050-IDC-FP_2x05_P1.27mm_Vertical | J401 |
| 1 | LOGO | MegaMouse:MegaMouseQR | G*** |
| 1 | LOGO | MegaMouse:MegaMouseLogo | G*** |
| 1 | LOGO | MegaMouse:JLCPCB | G*** |
| 1 | LOGO | KenwoodFox:SNHU_NEW | SNHU_NEW*** |
| 1 | LeftTail | MegaMouse:BrakeLight | D101 |
| 1 | MBR0520 | Diode_SMD:D_SOD-123 | D601 |
| 1 | NCV1117ST50T3G | Package_TO_SOT_SMD:SOT-223 | U501 |
| 1 | PWR | LED_SMD:LED_0805_2012Metric | D501 |
| 1 | PWR | KenwoodFox:EG1218 | SW501 |
| 1 | RESET | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW401 |
| 1 | RSTBridge | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP401 |
| 1 | RX | LED_SMD:LED_0805_2012Metric | D602 |
| 1 | RightTail | MegaMouse:BrakeLight | D102 |
| 1 | START/MODE | Button_Switch_THT:SW_Tactile_SKHH_Angled | SW402 |
| 1 | STATE | KenwoodFox:SM420391N8 | U604 |
| 1 | TX | LED_SMD:LED_0805_2012Metric | D603 |
| 1 | USBC | Connector_USB:USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J601 |
The 130 most common of 136 parts.
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Questions
How big is the MegaMouse PCB?
It measures 93.1 × 158.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MegaMouse use?
136 parts, built around the ATMEGA328-PU, DRV8871DDA, FT232RL and SN74HC595D. 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 MegaMouse KiCad files?
From the KenwoodFox/MegaMouse repository on GitHub, at the commit this page was made from: the board is Hardware/MegaMouse/MegaMouse.kicad_pcb and its schematic Hardware/MegaMouse/MegaMouse.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MegaMouse design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).