T-Bao Gear get it now

Overview

T-Bao Gear is the smart car expansion of the T-Bao AIoT terminal, combining the K210 RISC-V AI chip and ESP32 dual-core MCU with a wheeled robot chassis. It uses a DRV8833 dual H-bridge motor driver to control two DC gear motors and an ES_9051 servo for camera pan/tilt. The K210 handles on-device AI inference (face detection, emotion recognition, object tracking), while the ESP32 manages motion control, WiFi communication, and Web remote control. Suitable for AI robotics education, autonomous navigation research, and remote-controlled vehicle projects.

Quick Start

Example Support

Example	PlatformIO / Arduino	Description
DRV8833	✓	Basic DC motor drive via serial command
ES_9051	✓	Servo precise angle control (0–180°)
Seeking	✓	Auto face-tracking with timeout search
Emotion	✓	Random emotion animations — car plays random emotion expressions and motions
Factory	✓	Multi-mode: face follow / object detection / remote control
Remote	✓	Web-based WiFi remote driving

Firmware Download

Example	ESP32 Firmware	K210 Firmware	K210 Model	Notes
DRV8833	firmware_lilygo-t-bao-esp32-DRV8833	maixpy_twatch_v0.6.2-75-g973361c0d-dirty	—	Serial control
Seeking	firmware_lilygo-t-bao-esp32-Seeking	maixpy_twatch_v0.6.2-75-g973361c0d-dirty	face_model_at_0x300000	Face tracking + auto search
Emotion	firmware_lilygo-t-bao-esp32-Emotion	⚠️ maixpy_v0.6.2_87_g37c84a3e7	—	K210 firmware differs from other examples
Factory	firmware_lilygo-t-bao-esp32-Factory	maixpy_twatch_v0.6.2-75-g973361c0d-dirty	face_model_at_0x300000	Multi-mode integrated
Remote	firmware_lilygo-t-bao-esp32-Remote	maixpy_twatch_v0.6.2-75-g973361c0d-dirty	—	ESP32 firmware only needed

K210 Firmware Flashing

1. Download MaixPy IDE — online debug and firmware flash tool
2. Download kflash_gui — flashing tool for K210 firmware and model files
3. Select the corresponding firmware and model files for your example and flash

Note: The Emotion example uses a different K210 firmware (maixpy_v0.6.2_87_g37c84a3e7.bin). Do not mix it with other examples.

PlatformIO

1. Install Visual Studio Code and Python
2. Search for and install the PlatformIO IDE extension in VS Code
3. Open the T-Bao project folder
4. Open platformio.ini and uncomment the example you want to use
5. Click ✓ to compile, connect via USB-C, click → to upload

Arduino

1. Install Arduino IDE
2. Install Arduino ESP32
3. Open the target example .ino file
4. In Tools → Board, configure:

Arduino IDE Setting	Value
Board	ESP32 Dev Module
Port	Your port
Flash Size	16MB (128Mb)
Partition Scheme	Huge APP (3MB No OTA/1MB SPIFFS)
PSRAM	Enabled
Upload Speed	921600

5. Click Upload

Related Videos

• T-BAO Demo

Key Features

• K210 RISC-V dual-core 64-bit AI chip (400 MHz), KPU neural network processor — on-device face detection, random emotion animations, object tracking
• ESP32-D0WDQ6-V3, 16 MB Flash, 8 MB PSRAM, Wi-Fi + Bluetooth 4.2
• DRV8833 dual H-bridge motor driver, controls two DC gear motors
• ES_9051 servo for camera pan/tilt (0–180°)
• OV2640 2 MP camera with 180° rotation
• ST7789V 1.54-inch IPS touch screen (240 × 240)
• WiFi Web remote control support
• K210 ↔ ESP32 UART communication (TX: GPIO25, RX: GPIO26)
• Multiple operation modes: face tracking, emotion interaction, Web remote, multi-mode factory

Specifications

Parameter	Value
AI Chip	K210 RISC-V Dual-core 64-bit, 400 MHz, KPU ~0.5 TOPS
MCU	ESP32-D0WDQ6-V3 Dual-core LX6, 240 MHz
Flash	16 MB
PSRAM	8 MB
Wi-Fi	2.4 GHz 802.11 b/g/n
Bluetooth	Bluetooth 4.2 + BLE
Display	1.54-inch ST7789V IPS TFT, 240 × 240
Camera	OV2640 (2 MP, 180° rotation)
Motor Driver	DRV8833 dual H-bridge
Servo	ES_9051 (0–180°)
USB	1 × Type-C

Pin Diagram

Motor (DRV8833)

DRV8833	EN	IN1	IN2	IN3	IN4
ESP32	GPIO2	GPIO22	GPIO21	GPIO15	GPIO13

Servo

ES_9051	Signal
ESP32	GPIO19

K210 UART

K210	TX	RX
ESP32	GPIO26	GPIO25

Dimensions

Schematic

• T-Bao Schematic

Datasheet

• K210 Datasheet
• ESP32 Datasheet
• OV2640 Datasheet
• DRV8833 Datasheet

Software Libraries

• T-Bao GitHub Repository — ESP32 Arduino/PlatformIO examples
• LilyGo-K210-Script — K210 MicroPython examples
• MaixPy — K210 development framework
• MaixHub — Online model training platform

FAQ

• Q. How do K210 and ESP32 communicate? A. Via UART serial — K210 TX → ESP32 GPIO26, K210 RX → ESP32 GPIO25. K210 acts as AI processor; ESP32 handles motion control and WiFi.

• Q. The Emotion example doesn't work after flashing the standard K210 firmware. A. The Emotion example requires a different K210 firmware (maixpy_v0.6.2_87_g37c84a3e7.bin). Flash the correct firmware listed in the firmware table above.

• Q. How do I adjust motor speed? A. Modify the PWM value in the MotorPWMConfig struct. The range is 0–255, e.g. {200, 0, 0, 200} for higher speed.

• Q. How do I change the servo angle range? A. Edit SERVO_MIN_ANGLE and SERVO_MAX_ANGLE constants in the example source code.

• Q. Web remote control is not connecting. A. Ensure the ESP32 is flashed with the Remote or Factory firmware, connect your phone/PC to the ESP32's WiFi AP, then open the displayed IP address in a browser.

Changelog

Version	Date	Notes
V1.0	—	Initial release