380 Hz (bandwidth 20, 25, 50, 100 Hz), or 760 Hz (bandwidth 30, 35, 50, 100 Hz)ĭof.setGyroODR(dof.G_ODR_95_BW_125) // Set gyro update rate to 190 Hz with the smallest bandwidth for low noise Gyro output data rates can be: 95 Hz (bandwidth 12.5 or 25 Hz), 190 Hz (bandwidth 12.5, 25, 50, or 70 Hz) to get a smooth ~150 Hz filter update rateĭof.setAccelABW(dof.A_ABW_50) // Choose lowest filter setting for low noise Strategy here is to effectively oversample accelerometer at 100 Hz and use a 50 Hz anti-aliasing (low-pass) filter frequency Anti-aliasing acts like a low-pass filter allowing oversampling of accelerometer and rejection of high-frequency spurious noise. Accelerometer anti-aliasing filter rate can be 50, 194, 362, or 763 Hz uint16_t status = dof.begin(dof.G_SCALE_2000DPS, Or call it with declarations for sensor scales and data rates: You can either call it with no parameters (the easy way): Use the begin() function to initialize the LSM9DS0 library. Wire.begin(4,5) //set i2c SDA and SCL pins A UDP instance to let us send and receive packets over UDP LSM9DS0 dof(MODE_I2C, LSM9DS0_G, LSM9DS0_XM) Create an instance of the LSM9DS0 library called `dof` the #define LSM9DS0_G 0圆B // Would be 0圆A if SDO_G is LOW #define LSM9DS0_XM 0x1D // Would be 0x1E if SDO_XM is LOW SDO_XM and SDO_G are both grounded, so our addresses are: Comment out this section if you’re using SPI #include // Included for SFE_LSM9DS0 library In the code, make sure you are setting the SSID name and password of the network you want to use.Īlso ensure that the Wire.begin() contains the pin numbers of the SDA and SCL. The digital I2C communication uses two wires, the Data line SDA and a Clock line (SCL).īelow is the Arduino Code that will read the sensor data, format and send the readings as OSC bundles.Įnsure you are setting the Arduino IDE to the Huzzah ESP8266 Board (you might need to add this board in the Arduino Board manager, please see Adafruit overview/tutorials for more info.) The sensor breakout board needs to be powered, so connect Gnd and +3.3V between the two circuits. It is very straight forward to connect the sensor breakout board and the Huzzah ESP. The LSM9DS0 sensor uses the I2C protocol. *| 9 Degrees of Freedom IMU Breakout – LSM9DS0 – īut supplied code can be easily updated for the Adafruit 9-DOF Accel/Mag/Gyro+Temp Breakout Board – LSM9DS1 LiPo charger and 3.7 1000mAh LiPo battery. I will update this post in the near future with a more up-to-date sensor breakout board. At the time of writing I had to learn that the sensor used here (LSM9DS0 with i2c) is not produced anymore. It has been very reliable for performance. This post describes the assembly of a wireless sensor transmitter suitable for music and art performance and installation setups.
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