![]() The rainfall-induced change in moisture content in the fractured soil was used to obtain the influence of moisture content change on expansive soils, and to analyze the dry–wet cycle failure mode of surface soil. ![]() The cracks on the slope’s surface were processed using a self-made binarization program, and the crack evolution mechanism of the expansive soil during the drying process was analyzed. The change in soil moisture content at different depths during the drying–wetting cycles was monitored using a moisture content sensor, and the variation in crack depths in the expansive soil during the drying process was measured using a crack depth detector. This study investigated the crack propagation law of expansive soil slopes under drying–wetting conditions and the influence of cracks on slopes by conducting a large-scale indoor slope test subjected to drying–wetting cycles. z ) #endif #ifdef OUTPUT_TEAPOT // display quaternion values in InvenSense Teapot demo format: teapotPacket = fifoBuffer teapotPacket = fifoBuffer teapotPacket = fifoBuffer teapotPacket = fifoBuffer teapotPacket = fifoBuffer teapotPacket = fifoBuffer teapotPacket = fifoBuffer teapotPacket = fifoBuffer Serial. dmpGetLinearAccelInWorld ( & aaWorld, & aaReal, & q ) Serial. dmpGetLinearAccel ( & aaReal, & aa, & gravity ) mpu. dmpGetQuaternion ( & q, fifoBuffer ) mpu. ![]() z ) #endif #ifdef OUTPUT_READABLE_WORLDACCEL // display initial world-frame acceleration, adjusted to remove gravity // and rotated based on known orientation from quaternion mpu. dmpGetLinearAccel ( & aaReal, & aa, & gravity ) Serial. println ( ypr * 180 / M_PI ) #endif #ifdef OUTPUT_READABLE_REALACCEL // display real acceleration, adjusted to remove gravity mpu. dmpGetYawPitchRoll ( ypr, & q, & gravity ) Serial. println ( euler * 180 / M_PI ) #endif #ifdef OUTPUT_READABLE_YAWPITCHROLL // display Euler angles in degrees mpu. z ) #endif #ifdef OUTPUT_READABLE_EULER // display Euler angles in degrees mpu. dmpGetQuaternion ( & q, fifoBuffer ) Serial. cpp/.h files // for both classes must be in the include path of your project #include "I2Cdev.h" #include "MPU6050_6Axis_MotionApps20.h" //#include "MPU6050.h" // not necessary if using MotionApps include file // Arduino Wire library is required if I2Cdev I2CDEV_ARDUINO_WIRE implementation // is used in I2Cdev.h #if I2CDEV_IMPLEMENTATION = I2CDEV_ARDUINO_WIRE #include "Wire.h" #endif // class default I2C address is 0圆8 // specific I2C addresses may be passed as a parameter here // AD0 low = 0圆8 (default for SparkFun breakout and InvenSense evaluation board) // AD0 high = 0圆9 MPU6050 mpu //MPU6050 mpu(0圆9) // 1 packet available // (this lets us immediately read more without waiting for an interrupt) fifoCount -= packetSize #ifdef OUTPUT_READABLE_QUATERNION // display quaternion values in easy matrix form: w x y z mpu. */ // I2Cdev and MPU6050 must be installed as libraries, or else the. Visualise the motion in 3D in my next tutorial. Likewise,the MPU sensor is the Bus Slave. Consequently, at that time, all the other ICs are regarded to be Bus Slaves.As bus masters are generally microcontrollers, here for instance, the bus master is ArduinoUno. The I2C protocol specification states that the IC that initiates a data transfer on the bus is considered the Bus Master. This means that more than one IC capable of initiating a data transfer can be connected to it. Obviously, an LCD driver is only a receiver, while a memory or I/O chip can be both transmitter and receiver.The I2C bus is a multi-master bus. Each of these chips can act as a receiver and/or transmitter, depending on the functionality. SDA is the Serial DAta line, and SCL is the Serial CLock line. Every device hooked up to the bus has its own unique address, no matter whether it is an MCU, LCD driver, memory, or ASIC. The active wires, called SDA and SCL, are both bi-directional. do you know,what I2C stands for?Īns : The I2C bus physically consists of 2 active wires and a ground connection. Likewise,we also included an I2C library in this project. KNOWLEDGECORNER > We saw that the communication between the sensor and arduino is based on I2C Bus protocol. ![]()
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