diff --git a/os/various/devices_lib/l3gd20.c b/os/various/devices_lib/mems/l3gd20.c
similarity index 100%
rename from os/various/devices_lib/l3gd20.c
rename to os/various/devices_lib/mems/l3gd20.c
diff --git a/os/various/devices_lib/l3gd20.h b/os/various/devices_lib/mems/l3gd20.h
similarity index 99%
rename from os/various/devices_lib/l3gd20.h
rename to os/various/devices_lib/mems/l3gd20.h
index ff67b21d..08d90927 100644
--- a/os/various/devices_lib/l3gd20.h
+++ b/os/various/devices_lib/mems/l3gd20.h
@@ -40,11 +40,9 @@
 /* Driver constants.                                                         */
 /*===========================================================================*/
 
-#if  (PLAY_USE_FLOAT) || defined(__DOXYGEN__)
 #define  L3GD20_SENS_250DPS                      ((float)131.072f)          /*!< gyroscope sensitivity with 250 dps full scale [LSB/dps] */
 #define  L3GD20_SENS_500DPS                      ((float)65.536f)           /*!< gyroscope sensitivity with 500 dps full scale [LSB/dps] */
 #define  L3GD20_SENS_2000DPS                     ((float)16.384f)           /*!< gyroscope sensitivity with 2000 dps full scale [LSB/dps] */
-#endif /* PLAY_USE_FLOAT */
 /**
  * @name    L3GD20 register names
  * @{
diff --git a/os/various/devices_lib/lis3mdl.c b/os/various/devices_lib/mems/lis3mdl.c
similarity index 100%
rename from os/various/devices_lib/lis3mdl.c
rename to os/various/devices_lib/mems/lis3mdl.c
diff --git a/os/various/devices_lib/lis3mdl.h b/os/various/devices_lib/mems/lis3mdl.h
similarity index 100%
rename from os/various/devices_lib/lis3mdl.h
rename to os/various/devices_lib/mems/lis3mdl.h
diff --git a/os/various/devices_lib/lsm303dlhc.c b/os/various/devices_lib/mems/lsm303dlhc.c
similarity index 100%
rename from os/various/devices_lib/lsm303dlhc.c
rename to os/various/devices_lib/mems/lsm303dlhc.c
diff --git a/os/various/devices_lib/lsm303dlhc.h b/os/various/devices_lib/mems/lsm303dlhc.h
similarity index 99%
rename from os/various/devices_lib/lsm303dlhc.h
rename to os/various/devices_lib/mems/lsm303dlhc.h
index ed52e684..46b51bce 100644
--- a/os/various/devices_lib/lsm303dlhc.h
+++ b/os/various/devices_lib/mems/lsm303dlhc.h
@@ -41,7 +41,6 @@
 /* Driver constants.                                                         */
 /*===========================================================================*/
 
-#if  (PLAY_USE_FLOAT) || defined(__DOXYGEN__)
 #define  LSM303DLHC_ACC_SENS_2G                  ((float)1671.836f)          /*!< Accelerometer sensitivity with 2 G full scale [LSB * s^2 / m] */
 #define  LSM303DLHC_ACC_SENS_4G                  ((float)835.918f)           /*!< Accelerometer sensitivity with 4 G full scale [LSB * s^2 / m] */
 #define  LSM303DLHC_ACC_SENS_8G                  ((float)417.959f)           /*!< Accelerometer sensitivity with 8 G full scale [LSB * s^2 / m] */
@@ -62,7 +61,6 @@
 #define  LSM303DLHC_COMP_SENS_Z_4_7GA            ((float)355.0f)             /*!< Compass sensitivity with 4.7 GA full scale [LSB  / Ga] */
 #define  LSM303DLHC_COMP_SENS_Z_5_6GA            ((float)295.0f)             /*!< Compass sensitivity with 5.6 GA full scale [LSB  / Ga] */
 #define  LSM303DLHC_COMP_SENS_Z_8_1GA            ((float)205.0f)             /*!< Compass sensitivity with 8.1 GA full scale [LSB  / Ga] */
-#endif /* PLAY_USE_FLOAT */
 /**
  * @name    LSM303DLHC register names
  * @{
diff --git a/os/various/devices_lib/lsm6ds0.c b/os/various/devices_lib/mems/lsm6ds0.c
similarity index 100%
rename from os/various/devices_lib/lsm6ds0.c
rename to os/various/devices_lib/mems/lsm6ds0.c
diff --git a/os/various/devices_lib/lsm6ds0.h b/os/various/devices_lib/mems/lsm6ds0.h
similarity index 99%
rename from os/various/devices_lib/lsm6ds0.h
rename to os/various/devices_lib/mems/lsm6ds0.h
index 3631493a..57e20577 100644
--- a/os/various/devices_lib/lsm6ds0.h
+++ b/os/various/devices_lib/mems/lsm6ds0.h
@@ -40,7 +40,6 @@
 /* Driver constants.                                                         */
 /*===========================================================================*/
 
-#if  (PLAY_USE_FLOAT) || defined(__DOXYGEN__)
 #define  LSM6DS0_ACC_SENS_2G                     ((float)1671.095f)         /*!< Accelerometer sensitivity with 2 G full scale [LSB * s^2 / m] */
 #define  LSM6DS0_ACC_SENS_4G                     ((float)835.547f)          /*!< Accelerometer sensitivity with 4 G full scale [LSB * s^2 / m] */
 #define  LSM6DS0_ACC_SENS_8G                     ((float)417.774)           /*!< Accelerometer sensitivity with 8 G full scale [LSB * s^2 / m] */
@@ -49,8 +48,6 @@
 #define  LSM6DS0_GYRO_SENS_245DPS                ((float)114.286f)          /*!< Gyroscope sensitivity with 245 dps full scale [LSB * s / °] */
 #define  LSM6DS0_GYRO_SENS_500DPS                ((float)57.143f)           /*!< Gyroscope sensitivity with 500 dps full scale [LSB * s / °] */
 #define  LSM6DS0_GYRO_SENS_2000DPS               ((float)14.286f)           /*!< Gyroscope sensitivity with 2000 dps full scale [LSB * s / °] */
-
-#endif /* PLAY_USE_FLOAT */
 /**
  * @name    LSM6DS0 register names
  * @{
diff --git a/os/various/devices_lib/max7219.c b/os/various/devices_lib/others/max7219.c
similarity index 100%
rename from os/various/devices_lib/max7219.c
rename to os/various/devices_lib/others/max7219.c
diff --git a/os/various/devices_lib/max7219.h b/os/various/devices_lib/others/max7219.h
similarity index 100%
rename from os/various/devices_lib/max7219.h
rename to os/various/devices_lib/others/max7219.h
diff --git a/os/various/devices_lib/nrf24l01.c b/os/various/devices_lib/rf/nrf24l01.c
similarity index 100%
rename from os/various/devices_lib/nrf24l01.c
rename to os/various/devices_lib/rf/nrf24l01.c
diff --git a/os/various/devices_lib/nrf24l01.h b/os/various/devices_lib/rf/nrf24l01.h
similarity index 100%
rename from os/various/devices_lib/nrf24l01.h
rename to os/various/devices_lib/rf/nrf24l01.h