Description The M5Stack Mini JoyC HAT is a compact joystick expansion base designed for M5StickC and M5StickC Plus controllers. It integrates an XY-axis joystick with a center button, making it useful for handheld control interfaces and small remote-control projects. The HAT includes an STM32F030F4P6 MCU, I2C communication at address 0x54, a HY2.0-4P connector, an SK6812 RGB LED, and a built-in 200mAh lithium-polymer battery. This combination gives the M5Stack Mini JoyC HAT local input, visual feedback, and portable power support in a small add-on form factor. With a maximum joystick angle of 23 degrees in each direction, 10kΩ total joystick resistance, and M5Stack software resources for Arduino and UIFlow, the Mini JoyC HAT is suited for drone control demos, robotic joint operation, car remote control, light dimming, and other interactive control projects. Features Joystick control: XY-axis joystick with a center button for compact handheld input. M5StickC compatibility: designed for M5StickC and M5StickC Plus controller projects. STM32F030F4P6 MCU: built-in controller for joystick and HAT operation. I2C interface: communicates over I2C at address 0x54 through the HY2.0-4P connector. Built-in battery: includes a 200mAh lithium-polymer battery for portable use. Visual feedback: integrates an SK6812-3535 programmable RGB LED. Development support: official resources are available for Arduino, UIFlow, and internal firmware. Specifications MCU STM32F030F4P6 Communication I2C @ 0x54 RGB SK6812-3535 Power Supply 3.3V Battery Capacity 200mAh Joystick Max Angle 23 degrees max in each direction Total Resistance 10kΩ Center Button Yes Product Size 81.1 x 36.0 x 24.0mm Product Weight 20.6g Package Size 101.0 x 27.0 x 22.0mm Gross Weight 31.2g Applications Drone remote control demonstrations Robotic joint control Car and mobile robot remote control Light dimmer and RGB lighting control Portable M5StickC handheld control interfaces Product List 1 Hat Mini JoyC 1 Lanyard 1 Hex Key L-Shape 1.5mm for M2 screw 2 M2 x 8mm screws, pan head, self-tapping Other Content Interface and Control Notes I2C Address 0x54 Connector HY2.0-4P Joystick Input XY-axis joystick with center button RGB LED SK6812-3535 The M5Stack Mini JoyC HAT is an expansion HAT and does not include an M5StickC or M5StickC Plus controller in the package. Resources M5Stack Mini JoyC HAT documentation Mini JoyC HAT schematic PDF Mini JoyC HAT model and reference PDF Arduino project guide UIFlow1 Mini JoyC docs UIFlow2 Mini JoyC docs M5Hat Mini JoyC GitHub repository Mini JoyC internal firmware repository FAQ What is the M5Stack Mini JoyC HAT used for? It is a joystick expansion HAT for M5StickC and M5StickC Plus projects, suitable for compact control interfaces and remote-control demos. Does the package include an M5StickC controller? No. The official product list includes the Hat Mini JoyC, lanyard, hex key, and screws, but not an M5StickC controller. What communication interface does it use? The Mini JoyC HAT uses I2C communication at address 0x54 through the HY2.0-4P connector. Does it have a battery? Yes. The official specifications list a built-in 200mAh lithium-polymer battery. Which development resources are available? Official resources include documentation, schematic PDF, Arduino project guidance, UIFlow docs, GitHub code, and internal firmware resources.
