JoyC is a Joystick Module designed for the M5StickC. Supports two-handed operation. The main control chip is STM32F030F4, it uses the I2C communication protocol and the M5StickC host for data transmission. The joystick range is from 0 to 200, includes 12 RGB LEDs, and the bottom of the joystick contains 16340 battery holder.

The RoverC is a programmable omnidirectional mobile robot base compatible with the M5StickC and can be started with the insertion of the M5StickC. The main controller of the base is the microcontroller stm32f030f4. The base comes with N20 worm gear motors, which are directly driven by a four-channel motor driver. These motors are connected to the mechanum wheels, which can move in all directions. In addition, two Grove-compatible I2C ports are provided to facilitate expansion to other modules.

BugC is a programmable robot base compatible with the M5StickC. It has four DC motors, two RGB LEDs, battery holder and a switch. The BugC base must be used in conjunction with the M5StickC controller. The base comes with a STM32F030F4 Microcontroller, which controls all motors and LEDs, and is controlled by the I2C protocol by M5StickC, which is on top of the base.