BALA2 ESP32 Self-balancing Robot Kit


Regular price $65.00

10+ In Stock



BALA2 is short for 'Balance', as its name suggests, it is the second generation of M5Stacks balancing robot series. BALA2 is a Self Balancing Robot consisting of am M5Stack Gray and two wheels(DC motors).The base uses STM32F030C8T6 as the main control and has a two-way encoding motor driver and built-in 1200mAh battery.

This robotics product comes with preloaded software. A self-balancing robot application which balances the robot vertically using a closed-loop algorithm. You can program it to automatically move around through programming, or you can combine WiFi and Bluetooth to develop remote control functions.

This Robot is controllable by a Smartphone device or a Transmitter. The BALA2 base contains a wealth of interfaces. In addition to the conventional PortB and PortC, it also supports 8-channel servos, of which 4 channels can be directly connected, and the remaining 4 channels need to be connected from the inside of the base. Even if you have never attempted such a balancing robot program, you can quickly get the hang of it and control it through UIFlow. The self balancing robot uses data from the Accelerometer and Gyroscope to correct its orientation and position.The 2 DC driver module communicates with M5Stack Gray through I2C(0x3A).

Product Features

  • 9-DOF IMU
  • Two-wheel drive, PID control balance
  • Grove extension ports
  • 8-channel servo drive, 4-channel external connection, 4-channel built-in
  • Support WiFi/Bluetooth, programmable
  • Built-in speaker
  • TF Card Support
  • LEGO™ Compatible
  • Programming Support
    • Python
    • UIFlow (Blockly)
    • Arduino


  • 1x M5Stack Gray + BALA2
  • 4x Wheel conncetor
  • 2x HY2.0-4P Cables(20cm)
  • 2x Bricks
  • 1x Hex wrench
  • Type-C USB Cable(120cm)


  • Balancing car

Usage and Sensor calibration

Note: BALA2 has been calibrated , and it can automatically maintain its balance after turning it on. For manual calibration, please refer to Quick Start


Resources Parameter
ESP32 240MHz Dual Core,600 DMIPS,520KB SRAM,Wi-Fi,Dual-mode Bluetooth
Flash/RAM 16MB Flash + 4MB PSRAM
LCD 2.0 inch, 320x240 Color TFT LCD, ILI9342C
Speaker 1W-0928
Motor Driver HR8833
Base Controller STM32F030C8T6
Ports GROVE I2C*1/UART*1/GPIO*1/SERVO*4(+4 Extendable Channel)
Battery Capacity 1200mAh
Net Weight 157g
Gross Weight 337g
Product Size 54*54*65*mm
Package dimensions 100*100*100mm
Case Material Plastic


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