ITG-3205 and ADXL-345 have pullups?

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RCvertt
Posts: 172
Joined: Fri Sep 14, 2012 11:45 am

ITG-3205 and ADXL-345 have pullups?

Post by RCvertt »

Do the ADXL-345 and ITG-3205 breakouts from Sparkfun have Pullups resistors? Or do I have to add them?

Tomek
Posts: 14
Joined: Thu Sep 05, 2013 3:46 am

Re: ITG-3205 and ADXL-345 have pullups?

Post by Tomek »

Hi !
I have IMU Digital Combo Board - 6 Degrees of Freedom ITG3200/ADXL345 from Sparkfun.
Schematic is showing 4.7K pullups but I have I2C errors - after adding external 2.2K is working OK.
Also I have to change I2C address of ADXL345 in sensors.ccp:
"#if !defined(ADXL345_ADDRESS)
//#define ADXL345_ADDRESS 0x1D
#define ADXL345_ADDRESS 0x53 //WARNING: Conflicts with a Wii Motion plus!
#endif"
and change sensor orirntation in config.h:
"/* enforce your individual sensor orientation - even overrides board specific defaults */
#define FORCE_ACC_ORIENTATION(X, Y, Z) {imu.accADC[ROLL] = Y; imu.accADC[PITCH] = -X; imu.accADC[YAW] = Z;}
//#define FORCE_GYRO_ORIENTATION(X, Y, Z) {imu.gyroADC[ROLL] = -Y; imu.gyroADC[PITCH] = X; imu.gyroADC[YAW] = Z;}
//#define FORCE_MAG_ORIENTATION(X, Y, Z) {imu.magADC[ROLL] = X; imu.magADC[PITCH] = Y; imu.magADC[YAW] = Z;}"
Tom

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