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