Based on the ESP32WROOM32 module, supports wireless communication such as WIFI, Bluetooth and ESPNOWOnboard motor control interfaces for 2x DC motor with encoder or 4x DC motor (2 groups) without encoderOnboard serial bus servos control interfaces for controlling up to 253 ST3215 serial bus servos and obtaining servos feedbackOnboard 9axis IMU to obtain attitude and heading information at any timeSupports 7~13V power input, and can be powered directly by 2S or 3S lithium battery moduleAutomatic download circuit for easy uploading programsSupport input voltage/current monitoringOnboard TF card slotOnboard Laser Lidar interface and integrated UART to USB functionI2C interface for connecting peripherals such as OLED, IMU, and other I2C devicesAdapting Multifunctional extended header for additional functions, such as controlling servos or relaysOnboard 40PIN GPIO header for connecting and powering the host computer (/ Nano, etc), communicating via serial port or I2CProvides opensource demos and detailed tutorials for beginners, easy to get startedThe product printing may be different due to different factory batches, the screw color and antenna appearance may be randomly sent, don't accept the specified, which will not affect the useColour:BlackMaterial:plasticPackage Contents:1 x Driver BoardOnly 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 +/ 13cm.