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examples/ADXL345_SPI_basic_data/ADXL345_SPI_basic_data.ino

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+/***************************************************************************
+* Example sketch for the ADXL345_WE library
+*
+* This sketch shows how use SPI for the basic data sketch. Please apply the 
+* same steps in the other sketches if you want to use SPI.  
+*  
+* Further information can be found on:
+* https://wolles-elektronikkiste.de/adxl345-teil-1 (German)
+* https://wolles-elektronikkiste.de/en/adxl345-the-universal-accelerometer-part-1 (English)
+* 
+***************************************************************************/
+
+#include<ADXL345_WE.h>
+#include<SPI.h>
+#define CS_PIN 10   // Chip Select Pin
+bool spi = true;    // flag that SPI shall be used
+
+/* There are two ways to create your ADXL345 object in SPI mode:
+ * ADXL345_WE myAcc = ADXL345_WE()                -> uses Wire / I2C Address = 0x53
+ * ADXL345_WE myAcc = ADXL345_WE(ADXL345_I2CADDR) -> uses Wire / ADXL345_I2CADDR
+ * ADXL345_WE myAcc = ADXL345_WE(&wire2)          -> uses the TwoWire object wire2 / ADXL345_I2CADDR
+ * ADXL345_WE myAcc = ADXL345_WE(&wire2, ADXL345_I2CADDR) -> all together
+ * ADXL345_WE myAcc = ADXL345_WE(CS_PIN, spi)     -> uses SPI, spi is just a flag, see SPI example
+ * ADXL345_WE myAcc = ADXL345_WE(&SPI, CS_PIN, spi) -> uses SPI / passes the SPI object, spi is just a flag, see SPI example
+ */
+ADXL345_WE myAcc = ADXL345_WE(CS_PIN, spi);
+
+void setup(){
+  Serial.begin(9600);
+  Serial.println("ADXL345_Sketch - Basic Data");
+  if(!myAcc.init()){
+    Serial.println("ADXL345 not connected!");
+  }
+
+/* Choose the data rate         Hz
+    ADXL345_DATA_RATE_3200    3200
+    ADXL345_DATA_RATE_1600    1600
+    ADXL345_DATA_RATE_800      800
+    ADXL345_DATA_RATE_400      400
+    ADXL345_DATA_RATE_200      200
+    ADXL345_DATA_RATE_100      100
+    ADXL345_DATA_RATE_50        50
+    ADXL345_DATA_RATE_25        25
+    ADXL345_DATA_RATE_12_5      12.5  
+    ADXL345_DATA_RATE_6_25       6.25
+    ADXL345_DATA_RATE_3_13       3.13
+    ADXL345_DATA_RATE_1_56       1.56
+    ADXL345_DATA_RATE_0_78       0.78
+    ADXL345_DATA_RATE_0_39       0.39
+    ADXL345_DATA_RATE_0_20       0.20
+    ADXL345_DATA_RATE_0_10       0.10
+*/
+  myAcc.setDataRate(ADXL345_DATA_RATE_12_5);
+  delay(100);
+  Serial.print("Data rate: ");
+  Serial.print(myAcc.getDataRateAsString());
+
+/* In full resolution raw values the size of the raw values depend 
+    on the range: 2g = 10 bit; 4g = 11 bit; 8g = 12 bit; 16g =13 bit;
+    uncomment to change to 10 bit for all ranges. 
+ */
+  // myAcc.setFullRes(false);
+
+/* Choose the measurement range
+    ADXL345_RANGE_16G    16g     
+    ADXL345_RANGE_8G      8g     
+    ADXL345_RANGE_4G      4g   
+    ADXL345_RANGE_2G      2g
+*/ 
+  myAcc.setRange(ADXL345_RANGE_4G);
+  Serial.print("  /  g-Range: ");
+  Serial.println(myAcc.getRangeAsString());
+  Serial.println();
+
+/* Uncomment to enable Low Power Mode. It saves power but slightly
+    increases noise. LowPower only affetcs Data Rates 12.5 Hz to 400 Hz.
+*/
+  // myAcc.setLowPower(true);
+}
+
+/* The LSB of the Data registers is 3.9 mg (milli-g, not milligramm).
+    This value is used calculating g from raw. However, this is an ideal
+    value which you might want to calibrate. 
+*/
+
+void loop() {
+  xyzFloat raw = myAcc.getRawValues();
+  xyzFloat g = myAcc.getGValues();
+
+  Serial.print("Raw-x = ");
+  Serial.print(raw.x);
+  Serial.print("  |  Raw-y = ");
+  Serial.print(raw.y);
+  Serial.print("  |  Raw-z = ");
+  Serial.println(raw.z);
+
+  Serial.print("g-x   = ");
+  Serial.print(g.x);
+  Serial.print("  |  g-y   = ");
+  Serial.print(g.y);
+  Serial.print("  |  g-z   = ");
+  Serial.println(g.z);
+
+  Serial.println();
+
+  delay(1000);
+
+}