Japanese / English

ver 2.0

TatamiRacer is a tiny autonomous driving car based on the "TAMIYA MINI 4WD" kit. It can operate within the space of a single "Tatami" mat, approximately 1.8m x 0.9m. The car uses "Donkey Car" software for deep learning and self-driving control. Interestingly, the Japanese word "Tatami" also brings to mind convolution operations in neural networks.

YouTube

• TatamiRacer

• TatamiRacer at Maker Faire Tokyo 2022

Release History

ver 1.0 2023-05-28

ver 2.0

• Renewed 3D Parts
• Reduced mobile battery size and weight
• Supports installation of Raspberry Pi Zero 2

Bills of Materials(BOM)

| Parts Name | Remarks |Minimum Configuration|Recommend Configuration|Amazon-JP|Amazon-US| |:---|:---|:---:|:---:|:---:|:---:| | Raspberry Pi Zero2 W ||+|| Link | Link | | Raspberry Pi 4 |Select 2,4 or 8GB RAM||+| Link | Link | | Raspberry Pi Camera Module | v1.3:OV5647(Omnivision) or v2.1:IMX219Pq3(SONY)|+|+| v1.3, v2.1| v1.3, v2.1| | Micro SD Card | 16GB or more|+|+| e.g. SanDisk | e.g. SanDisk | | Mobile Battery | Size:53x85x9.0mm Voltage:5V Current:Up to 2.1A |+|+|Meisei C0303 | Atom Tech Super Slim Power Bank | | Motor Driver Module| For DC Motor/H-Bridge|+|+| L298N |L298N | | Pin Headder | Male 90deg / For Motor Dirver|+|+| Link |Link | | 130 DC Motor | Low Speed (<8000 RPM) and Low Current(<500mA)|+|+|TAMIYA,uxcell | uxcell | | Micro Servo |TowerPro SG90(0.1sec/60deg)|+|+| Link | Link | | TAMIYA Mini 4WD Kit |VZ Chassis and Your Favorite Body. Select Gear Rate 3.5:1 or 5:1 (Recommend 5:1 Gear )|+|+| Elephant with 5:1 gear, TOYOTA Yaris with 3.5:1 Gear, Honda e with 3.5.1 Gear, Dual Ridge Jr | Elephant with 5:1 gear, TOYOTA Yaris with 3.5:1 Gear, Honda e with 3.5.1 Gear, Dual Ridge Jr | |TAMIYA Gear Set |If you change gear rate (e.g. 5:1)|||15516|15516| | TAMIYA Mini 4WD Roller parts | Need Spacer and M2x10 screws|+|+| 15381, 95391,15435|15435 | | M2x15 or M2x16 mm bolt | For front wheel shaft |+|+| 15508, 15233| Link | | TAMIYA MINI4WD 72mm Shaft | For Extended Rear Shaft|+|+| Link | Link | | Jumper Cable | Female connector to Female connector 10cm|+|+| Link | Link | | Type-C USB Cable(L Headder) | Short cable 15-20cm ||+| e.g. aceyoon| e.g. aceyoon | | Gamepad | USB or Bluetooth | |+| F710, PS4 Compatible Gamepad | F710, PS4 Compatible Gamepad | || || | | | | Approximate cost (without Raspberry Pi and micro SD card) | |6,000 yen |10,000 yen | | |

3D Printed Parts

Assembly

See 3D Viewer
<img src="img/TatamiRacer_3D_Assembly.png" alt="" title="" width="640" height="">

Kit for 3D print

See 3D Viewer
<img src="img/TatamiRacer_3D_Kit.png" alt="" title="" width="640" height="">

Circuit Diagram

<img src="img/TatamiRacer_Circuit.png" alt="" title="" width="640" height="">

Body

Various type of Mini-4WD body can be attaced .e.g. Amazon JP, Amazon US
<img src="img/Body_Selection.jpg" alt="" title="" width="640" height="">

Tatami-Circuit Cource

<img src="img/tatami_circuit_150cmx100cm_preview.jpg" alt="" title="" width="640" height="">

Image data for printed fabric

Fabric print service available

• Tatami-Circuit 150cmx100cm 200dpi
• Tatami-Circuit 110cmx100cm 200dpi

TatamiRacer Assembly Instructions

See TatamiRacer Assembly Instructions
<img src="img/TatamiRacerBuild.jpg" alt="" title="" width="640" height="">

How to Setup Software

See How To Setup Software
<img src="img/TatamiRacer_Shortcut.jpg" alt="" title="" width="640" height="">

How to Calibrate TatamiRacer

See How to Calibrate TatamiRacer
<img src="img/tatamiracer_test.jpg" alt="" title="" width="640" height="">

How to Get Driving

See How to Get Driving
<img src="img/DonkeyCopilot.jpg" alt="" title="" width="640" height="">

Click to see the UI operation screen
Donkey Copilot Broweser Demo