About subhajit_sarkar

Hii BSTRobin , Thanks for your replies I have finally started getting data but there is still one problem that persists.. Below is the code I am using to get the data Register By register without any library but what happens is that even if I put the sensor in NDOF mode I still get the z-axis in a continuous Rotation mode from 0-360 degree which doesn't happen in the ADAFRUIT Module. Can you point me in the right direction... Thanks in Advance.. #include <Wire.h> uint8_t Roll_HSB, Roll_LSB, Pitch_HSB, Pitch_LSB, Yaw_HSB, Yaw_LSB; int16_t rawRoll, rawPitch, rawYaw, rawTemp; float Roll, Pitch, Yaw, Temp; void setup() { Serial.begin(115200); Wire.begin(0x28); setupIMU(); } void loop() { getDataIMU(); serialOut(); } void setupIMU() { //Configure Power Mode. Wire.beginTransmission(0x28); //Begins transmission with BNO IMU at devices address. Wire.write(0x3E); //Sends for the PWR_MODE register. Wire.write(0x00); // Sets PWR_MODE register to NORMAL MODE. This is the defualt anyway. Wire.endTransmission(); //Ends transmission. //Configure Operating Mode. Wire.beginTransmission(0x28); //Begins transmission with BNO IMU at devices address. Wire.write(0x3D); //Sends for OPR_MODE register. //Wire.write(0b00001000); //Sets OPR_MODE to IMU only FUSION Wire.write(0b00001100); //Sets OPR_MODE to Absolute 9dof (NDOF) FUSION. Wire.endTransmission(); //Ends transmission. //Configure Axis Orentation. Wire.beginTransmission(0x28); //Begins transmission with BNO IMU at devices address. Wire.write(0x41); //Sends for the AXIS_MAP_CONFIG register to configure the axis orentation. Wire.write(0x21); //Sets the Axis configuration to "P0" configuration. See datasheet page 24-25. Wire.endTransmission(); //Ends Transmission //Configure Axis Signs. Wire.beginTransmission(0x28); //Begins transmssion with BNO IMU at devices address. Wire.write(0x42); //Sends for the AXIS_MAP_SIGN register to adjust the signs of the axis. Wire.write(0x04); //Sets the axis signs. See datasheet page 24-25. Wire.endTransmission(); //Ends transmission. //Configure ACCEL, GYRO, MAG. When in fusion mode these are auto configured. See datasheet page 28. //Configure Data Units. Wire.beginTransmission(0x28); //Begins transmission with BNO IMU at devices address. Wire.write(0x3B); //Sends for UNIT_SEL register to configure outputed units. Wire.write(0b00010000); //Configures ACC: m/s^2; Gyro: deg/s; Euler Angles: Deg; Temp: F. Wire.endTransmission(); //Ends transmission. //Configure External Crystal. Wire.beginTransmission(0x28); //Begins transmission with BNO IMU at devices address. Wire.write(0x3F); //Sends for SYS_TRIGGER register to configure external crystal. Wire.write(0b10000000); //Flips bit 7 in register to enable external crystal. Wire.endTransmission(); //Ends transmission. } void getDataIMU() { Wire.beginTransmission(0x28); //Begins transmission with BNO IMU at devices adress. Wire.write(0x1A); Wire.endTransmission(); Wire.requestFrom(0x28, 6); //Requests 6 bytes from the IMU. while(Wire.available() < 6) {}; Yaw_LSB = Wire.read(); //Reads Euler angle about X-axis least significant byte. (EUL_DATA _X_LSB register) Yaw_HSB = Wire.read(); //Reads Euler angle about X-axis most significant byte. (EUL_DATA _X_MSB register) Pitch_LSB = Wire.read(); //Automatically continues to the EUL_DATA _Y_LSB & EUL_DATA _Y_MSB registers to get roll. Pitch_HSB = Wire.read(); Roll_LSB = Wire.read(); //Automatically continues to the EUL_DATA _Z_LSB & EUL_DATA _Z_MSB registers to get Yaw. Roll_HSB = Wire.read(); rawPitch = ((Pitch_HSB)<<8)| Pitch_LSB; //Or the Low byte with the High byte. rawRoll = ((Roll_HSB)<<8)| Roll_LSB; rawYaw = ((Yaw_HSB)<<8)| Yaw_LSB; Pitch = rawPitch/16.0; //Divide by the LSB factor (16 LSB/1 Degree). Roll = rawRoll/16.0; Yaw = rawYaw/16.0; void serialOut() { Serial.print(Roll); Serial.print(','); Serial.print(Pitch); Serial.print(','); Serial.println(Yaw); } ... View more

No that's the problem all I am getting  Zeroes at the output ... View more

I got this from the custom board ... View more

   Here is what I am getting     ... View more

Thank you BSTRobin for the quick reply , I have Shorted the R6 resistor so it directly connects to the ground plane. VBUS is 5V and instead of  BSS138 what would be the ideal IC or FET for this circuitry?  And the Code I am using is the adafruit Library which has an external crystal attached to it.  https://learn.adafruit.com/adafruit-bno055-absolute-orientation-sensor/arduino-code Thank you In advance.  This is my Output Calibration status values: 0=uncalibrated, 3=fully calibrated CALIBRATION: 0 SYS=0 GYR=0 ACC=0 MAG=0 ST RESULT: 1111 MCU OK GYR OK MAG OK ACC OK SYSTEM STATUS: 0 - System idle SYSTEM ERROR: 0 - No error OPERATION MODE: NDOF POWER MODE: NORMAL CALIBRATION: 0 SYS=0 GYR=0 ACC=0 MAG=0 Accelerometer (m/s^2) X =0.00, Y=0.00, Z= 0.00 and all the sensors are showing me tis 0.00 output. ... View more