ESP32 MCU with 4Mb Flash, supporting multiple communication protocols including UART, SPI, , CAN, I2S, and SDIO, along with Wi-Fi 802.11 b/g and Bluetooth BLE V4.2. TMC2209 ultra quiet motor driver featuring fast current regulation, ultra quiet operation, low-power standby, and includes a heat sink for efficient cooling. MT6816 magnetic encoder chip enabling absolute angle measurement from 0 to 360 °, with an operating temperature range of -40 °C to 125 °C. High-speed and high- performance with zero delay, achieving a delay of less than 2 microseconds at 25000 RPM. This product combines advanced technology for precise control and measurement in various applications. The ESP32 MCU provides robust connectivity options, while the TMC2209 motor driver ensures quiet and efficient operation. The MT6816 encoder chip offers reliable angle measurement, making it suitable for demanding environments. Ideal for robotics, automation, and other high-performance tasks. Color: Black Material: PCB+Plastic Package Contents: 1 X driver motherboard 1 X 0.49-inch OLED display screen 1 X needle arrangement 1 cord 1 X heat sink 2 X connecting wires 4 X M3X40 screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.