4 layers
Micromouse pcb
RoboJackets/roboracing-micromouse-pcb
This year, we are making Ratatouillii! 🐭🔥
51 parts
4 layers97.5 × 75 mm
Micromouse pcb
RoboJackets/roboracing-micromouse-pcbThis year, we are making Ratatouillii! 🐭🔥
- Size
- 97.5 × 75 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 65
- Nets
- 59
- Pads
- 205
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 3 Oct 2026
- Updated
- 6 Nov 2026
Overview
Micromouse pcb is an open-source printed circuit board by RoboJackets, from the RoboJackets/roboracing-micromouse-pcb repository on GitHub. It is a 4-layer board of 97.5 × 75 mm with 65 parts on 59 nets.
It is built around the AP63205WU, DRV8833PW and LSM6DSV16XTR, with the AO3400A, SFH 4545 and TEFT4300 among its other parts. Its parts include 20 resistors, 10 capacitors, 9 transistors, 5 diodes and 3 ICs. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
7
AP63205WU
TSOT-23-6-40℃~+85℃@(TA) 1 1.1MHz 22uA 2A 3.8V~32V 5V Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
DRV8833PW
TSSOP-16-40℃~+85℃ 2 2.7V~10.8V 360mΩ 500mA Bipolar Driver Yes TSSOP-16 Stepper Motor Driver ROHSTexas InstrumentsStepper Motor Driver
LSM6DSV16XTR
LGA-14-40℃~+85℃ 1.71V~3.6V 2.6uA 4.5KB IMU (accelerometer + gyroscope) SPI、I2C X,Y,Z X,Y,Z ±16g ±4000dps 运动事件检测、同步与时间戳 LGA-14(2.5x3) Accelerometers ROHSSTMicroelectronicsAccelerometers
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
SFH 4545
插件-40℃~+100℃ 1.5V 550mW/sr@IF=100mA 950nm Plugin Infrared LED Emitters ROHSOSRAM Opto SemiconInfrared LED Emitters
TEFT4300
插件,D=3mm-40℃~+100℃ 0.3V@0.1mA 100mW 1nA 50mA 70V 925nm NPN ±30° 插件,D=3mm Phototransistors ROHSVishay IntertechnologyPhototransistors
FQP27P06
TO-220-55℃~+175℃ 1 P-Channel 1.4nF 120W 27A 43nC@10V 4V 60V 70mΩ@10V TO-220 MOSFETs ROHSonsemiMOSFETs
README
README.md🚧 Welcome to RoboRacing Micromouse's Hardware Repo 🚧
What is Micromouse?
Micromouse is a new member program designed with the intention of providing an introduction to the electrical and firmware side of developing robots as a part of RoboRacing, while also preparing for a fun and competitive racing competition! Members will work on their own "mouse" that will be able to solve a 16x16 maze as quickly as possible.
Watch a detailed overview of the competition by the Veritasium YouTube Channel
Our Mice
We made our first team mouse -- Ratatouilli, over the 2025-26 school year. Ratatouilli competed in APEC in March 2026 at San Antonio!
This year, we are making Ratatouillii! 🐭🔥
PCB project
The KiCad project is at pcb/micromouse-pcb.kicad_pro. Its original component libraries are retained under pcb/libraries/ and registered through project-specific library tables—no absolute paths or per-user library installation required.
See docs/kicad-library-guide.md for first-time setup and the required workflow for adding or changing symbols, footprints, and 3D models.
Parts
65| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4, H5, H6, H7 |
| 5 | 100 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R20, R23, R26, R29 |
| 4 | 36 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R21, R24, R27, R30 |
| 4 | 800 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R22, R25, R28, R31 |
| 4 | AO3400A | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q2, Q3, Q4, Q5 |
| 4 | SFH_4545 | Ratatouii:DIO_SFH_4545 | D6, D7, D8, D9 |
| 4 | TEFT4300 | Ratatouii:XDCR_TEFT4300 | Q11, Q13, Q15, Q17 |
| 4 | TestPoint | Ratatouii:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP1, TP2, TP5, TP6 |
| 3 | 4.7k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R11, R12 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2 |
| 2 | 1M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R9 |
| 2 | C 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6, C7 |
| 2 | C 22uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4 |
| 2 | Conn_01x06 | Connector_JST:JST_SH_BM06B-SRSS-TB_1x06-1MP_P1.00mm_Vertical | J1_MotorEncoder1, J2_MotorEncoder1 |
| 1 | 0.01uF >16V | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13 |
| 1 | 2M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8 |
| 1 | AP63205WU | Package_TO_SOT_SMD:TSOT-23-6 | U2 |
| 1 | Battery | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | 7.4_LiPo1 |
| 1 | C 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
| 1 | C 2.2uF 6.3V | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8 |
| 1 | C 47uF >10V | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C9 |
| 1 | DRV8833PW | Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm_EP3x3mm_ThermalVias | U4 |
| 1 | FQP27P06 | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
| 1 | L 4.7μH | Inductor_SMD:L_1008_2520Metric_Pad1.43x2.20mm_HandSolder | L1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | LSM6DSV16XTR | Ratatouii:XDCR_LSM6DSV16XTR | U3 |
| 1 | SW_Push | Ratatouii:SW-SMD_L4.0-W2.9-LS5.0 | SW6 |
| 1 | SW_SPDT | Button_Switch_THT:SW_Slide_SPDT_Angled_CK_OS102011MA1Q | SW3 |
| 1 | TEENSY_4.0 | Ratatouii:TEENSY_SHORT | A2 |
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Questions
How big is the Micromouse pcb PCB?
It measures 97.5 × 75 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Micromouse pcb use?
65 parts, built around the AP63205WU, DRV8833PW, LSM6DSV16XTR and AO3400A. 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 Micromouse pcb KiCad files?
From the RoboJackets/roboracing-micromouse-pcb repository on GitHub, at the commit this page was made from: the board is pcb/micromouse-pcb.kicad_pcb and its schematic pcb/IR.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Micromouse pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask RoboJackets before reusing the design.