Bump version to 2.4.0 in library.properties

clang format

.github/workflows/githubci.yml

@@ -7,11 +7,11 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/setup-python@v1
+    - uses: actions/setup-python@v4
       with:
         python-version: '3.x'
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
          repository: adafruit/ci-arduino
          path: ci

examples/calibrated_orientation/LSM6DS_LIS3MDL.h

@@ -2,8 +2,12 @@
 Adafruit_LIS3MDL lis3mdl;
 
 // Can change this to be LSM6DSOX or whatever ya like
+// For (older) Feather Sense with LSM6DS33, use this:
 #include <Adafruit_LSM6DS33.h>
 Adafruit_LSM6DS33 lsm6ds;
+// For (newer) Feather Sense with LSM6DS3TR-C, use this:
+// #include <Adafruit_LSM6DS3TRC.h>
+// Adafruit_LSM6DS3TRC lsm6ds;
 
 bool init_sensors(void) {
   if (!lsm6ds.begin_I2C() || !lis3mdl.begin_I2C()) {

examples/calibrated_orientation/calibrated_orientation.ino

@@ -13,7 +13,7 @@
 Adafruit_Sensor *accelerometer, *gyroscope, *magnetometer;
 
 // uncomment one combo 9-DoF!
-#include "LSM6DS_LIS3MDL.h"  // can adjust to LSM6DS33, LSM6DS3U, LSM6DSOX...
+#include "LSM6DS_LIS3MDL.h"  // see the the LSM6DS_LIS3MDL file in this project to change board to LSM6DS33, LSM6DS3U, LSM6DSOX, etc
 //#include "LSM9DS.h"           // LSM9DS1 or LSM9DS0
 //#include "NXP_FXOS_FXAS.h"  // NXP 9-DoF breakout
 

examples/calibration/LSM6DS_LIS3MDL.h

@@ -2,8 +2,12 @@
 Adafruit_LIS3MDL lis3mdl;
 
 // Can change this to be LSM6DS33 or whatever ya like
+// For (older) Feather Sense with LSM6DS33, use this:
 #include <Adafruit_LSM6DS33.h>
 Adafruit_LSM6DS33 lsm6ds;
+// For (newer) Feather Sense with LSM6DS3TR-C, use this:
+// #include <Adafruit_LSM6DS3TRC.h>
+// Adafruit_LSM6DS3TRC lsm6ds;
 
 bool init_sensors(void) {
   if (!lsm6ds.begin_I2C() || !lis3mdl.begin_I2C()) {

examples/deprecated/ahrs_10dof/ahrs_10dof.ino

@@ -1,12 +1,13 @@
 #include <Wire.h>
 #include <Adafruit_Sensor.h>
-#include <Adafruit_LSM303_U.h>
+#include <Adafruit_LSM303_Accel.h>
+#include <Adafruit_LSM303DLH_Mag.h>
 #include <Adafruit_BMP085_U.h>
 #include <Adafruit_Simple_AHRS.h>
 
 // Create sensor instances.
 Adafruit_LSM303_Accel_Unified  accel(30301);
-Adafruit_LSM303_Mag_Unified   mag(30302);
+Adafruit_LSM303DLH_Mag_Unified mag(30302);
 Adafruit_BMP085_Unified        bmp(18001);
 
 // Create simple AHRS algorithm using the above sensors.

examples/deprecated/ahrs_9dof/ahrs_9dof.ino

@@ -1,11 +1,12 @@
 #include <Wire.h>
 #include <Adafruit_Sensor.h>
-#include <Adafruit_LSM303_U.h>
+#include <Adafruit_LSM303_Accel.h>
+#include <Adafruit_LSM303DLH_Mag.h>
 #include <Adafruit_Simple_AHRS.h>
 
 // Create sensor instances.
 Adafruit_LSM303_Accel_Unified  accel(30301);
-Adafruit_LSM303_Mag_Unified   mag(30302);
+Adafruit_LSM303DLH_Mag_Unified mag(30302);
 
 // Create simple AHRS algorithm using the above sensors.
 Adafruit_Simple_AHRS          ahrs(&accel, &mag);

library.properties

@@ -1,5 +1,5 @@
 name=Adafruit AHRS
-version=2.3.2
+version=2.4.0
 author=Adafruit
 maintainer=Adafruit <info@adafruit.com>
 sentence=AHRS (Altitude and Heading Reference System) for various Adafruit motion sensors
@@ -7,4 +7,4 @@ paragraph=Includes motion calibration example sketches, as well as calibration o
 category=Sensors
 url=https://github.com/adafruit/Adafruit_AHRS
 architectures=*
-depends=Adafruit Unified Sensor, Adafruit LSM6DS, Adafruit LIS3MDL, Adafruit FXOS8700, Adafruit FXAS21002C, Adafruit LSM9DS1 Library, Adafruit LSM9DS0 Library, Adafruit LSM303DLHC, Adafruit BMP085 Unified, Adafruit BluefruitLE nRF51, SdFat - Adafruit Fork, ArduinoJson, Adafruit SPIFlash, Adafruit Sensor Calibration
+depends=Adafruit Unified Sensor, Adafruit LSM6DS, Adafruit LIS3MDL, Adafruit FXOS8700, Adafruit FXAS21002C, Adafruit LSM9DS1 Library, Adafruit LSM9DS0 Library, Adafruit BMP085 Unified, Adafruit BluefruitLE nRF51, SdFat - Adafruit Fork, ArduinoJson, Adafruit SPIFlash, Adafruit Sensor Calibration, Adafruit LSM303 Accel, Adafruit LSM303DLH Mag

src/Adafruit_AHRS_Madgwick.cpp

@@ -282,13 +282,14 @@ void Adafruit_Madgwick::updateIMU(float gx, float gy, float gz, float ax,
 
 float Adafruit_Madgwick::invSqrt(float x) {
   float halfx = 0.5f * x;
-  float y = x;
+  union {
-  long i = *(long *)&y;
+    float f;
-  i = 0x5f3759df - (i >> 1);
+    long i;
-  y = *(float *)&i;
+  } conv = {x};
-  y = y * (1.5f - (halfx * y * y));
+  conv.i = 0x5f3759df - (conv.i >> 1);
-  y = y * (1.5f - (halfx * y * y));
+  conv.f *= 1.5f - (halfx * conv.f * conv.f);
-  return y;
+  conv.f *= 1.5f - (halfx * conv.f * conv.f);
+  return conv.f;
 }
 
 //-------------------------------------------------------------------------------------------
@@ -299,6 +300,6 @@ void Adafruit_Madgwick::computeAngles() {
   yaw = atan2f(q1 * q2 + q0 * q3, 0.5f - q2 * q2 - q3 * q3);
   grav[0] = 2.0f * (q1 * q3 - q0 * q2);
   grav[1] = 2.0f * (q0 * q1 + q2 * q3);
-  grav[2] = 2.0f * (q1 * q0 - 0.5f + q3 * q3);
+  grav[2] = 2.0f * (q0 * q0 - 0.5f + q3 * q3);
   anglesComputed = 1;
 }

src/Adafruit_AHRS_Mahony.cpp

@@ -261,13 +261,14 @@ void Adafruit_Mahony::updateIMU(float gx, float gy, float gz, float ax,
 
 float Adafruit_Mahony::invSqrt(float x) {
   float halfx = 0.5f * x;
-  float y = x;
+  union {
-  long i = *(long *)&y;
+    float f;
-  i = 0x5f3759df - (i >> 1);
+    long i;
-  y = *(float *)&i;
+  } conv = {x};
-  y = y * (1.5f - (halfx * y * y));
+  conv.i = 0x5f3759df - (conv.i >> 1);
-  y = y * (1.5f - (halfx * y * y));
+  conv.f *= 1.5f - (halfx * conv.f * conv.f);
-  return y;
+  conv.f *= 1.5f - (halfx * conv.f * conv.f);
+  return conv.f;
 }
 
 //-------------------------------------------------------------------------------------------
@@ -278,7 +279,7 @@ void Adafruit_Mahony::computeAngles() {
   yaw = atan2f(q1 * q2 + q0 * q3, 0.5f - q2 * q2 - q3 * q3);
   grav[0] = 2.0f * (q1 * q3 - q0 * q2);
   grav[1] = 2.0f * (q0 * q1 + q2 * q3);
-  grav[2] = 2.0f * (q1 * q0 - 0.5f + q3 * q3);
+  grav[2] = 2.0f * (q0 * q0 - 0.5f + q3 * q3);
   anglesComputed = 1;
 }