diff --git a/src/modules/SX128x/SX128x.cpp b/src/modules/SX128x/SX128x.cpp
index a5fec200..2bd2c456 100644
--- a/src/modules/SX128x/SX128x.cpp
+++ b/src/modules/SX128x/SX128x.cpp
@@ -56,7 +56,7 @@ int16_t SX128x::begin(float freq, float bw, uint8_t sf, uint8_t cr, int8_t power
   return(state);
 }
 
-int16_t SX128x::beginGFSK(float freq, uint16_t br, float freqDev, int8_t power, uint16_t preambleLength, float dataShaping) {
+int16_t SX128x::beginGFSK(float freq, uint16_t br, float freqDev, int8_t power, uint16_t preambleLength, uint8_t dataShaping) {
   // set module properties
   _mod->init(RADIOLIB_USE_SPI);
   Module::pinMode(_mod->getIrq(), INPUT);
@@ -115,7 +115,7 @@ int16_t SX128x::beginGFSK(float freq, uint16_t br, float freqDev, int8_t power,
   return(state);
 }
 
-int16_t SX128x::beginBLE(float freq, uint16_t br, float freqDev, int8_t power, float dataShaping) {
+int16_t SX128x::beginBLE(float freq, uint16_t br, float freqDev, int8_t power, uint8_t dataShaping) {
   // set module properties
   _mod->init(RADIOLIB_USE_SPI);
   Module::pinMode(_mod->getIrq(), INPUT);
@@ -163,7 +163,7 @@ int16_t SX128x::beginBLE(float freq, uint16_t br, float freqDev, int8_t power, f
   return(state);
 }
 
-int16_t SX128x::beginFLRC(float freq, uint16_t br, uint8_t cr, int8_t power, uint16_t preambleLength, float dataShaping) {
+int16_t SX128x::beginFLRC(float freq, uint16_t br, uint8_t cr, int8_t power, uint16_t preambleLength, uint8_t dataShaping) {
   // set module properties
   _mod->init(RADIOLIB_USE_SPI);
   Module::pinMode(_mod->getIrq(), INPUT);
@@ -815,23 +815,26 @@ int16_t SX128x::setFrequencyDeviation(float freqDev) {
   return(setModulationParams(_br, _modIndex, _shaping));
 }
 
-int16_t SX128x::setDataShaping(float dataShaping) {
+int16_t SX128x::setDataShaping(uint8_t sh) {
   // check active modem
   uint8_t modem = getPacketType();
   if(!((modem == SX128X_PACKET_TYPE_GFSK) || (modem == SX128X_PACKET_TYPE_BLE) || (modem == SX128X_PACKET_TYPE_FLRC))) {
     return(ERR_WRONG_MODEM);
   }
 
-  // check allowed values
-  dataShaping *= 10.0;
-  if(abs(dataShaping - 0.0) <= 0.001) {
-    _shaping = SX128X_BLE_GFSK_BT_OFF;
-  } else if(abs(dataShaping - 5.0) <= 0.001) {
-    _shaping = SX128X_BLE_GFSK_BT_0_5;
-  } else if(abs(dataShaping - 10.0) <= 0.001) {
-    _shaping = SX128X_BLE_GFSK_BT_1_0;
-  } else {
-    return(ERR_INVALID_DATA_SHAPING);
+  // set data shaping
+  switch(sh) {
+    case RADIOLIB_SHAPING_NONE:
+      _shaping = SX128X_BLE_GFSK_BT_OFF;
+      break;
+    case RADIOLIB_SHAPING_0_5:
+      _shaping = SX128X_BLE_GFSK_BT_0_5;
+      break;
+    case RADIOLIB_SHAPING_1_0:
+      _shaping = SX128X_BLE_GFSK_BT_1_0;
+      break;
+    default:
+      return(ERR_INVALID_DATA_SHAPING);
   }
 
   // update modulation parameters
diff --git a/src/modules/SX128x/SX128x.h b/src/modules/SX128x/SX128x.h
index 131e7baf..5c4f3978 100644
--- a/src/modules/SX128x/SX128x.h
+++ b/src/modules/SX128x/SX128x.h
@@ -385,11 +385,11 @@ class SX128x: public PhysicalLayer {
 
       \parma preambleLength FSK preamble length in bits. Defaults to 16 bits.
 
-      \param dataShaping Time-bandwidth product of the Gaussian filter to be used for shaping. Defaults to 0.5.
+      \param dataShaping Time-bandwidth product of the Gaussian filter to be used for shaping. Defaults to RADIOLIB_SHAPING_0_5.
 
       \returns \ref status_codes
     */
-    int16_t beginGFSK(float freq = 2400.0, uint16_t br = 800, float freqDev = 400.0, int8_t power = 10, uint16_t preambleLength = 16, float dataShaping = 0.5);
+    int16_t beginGFSK(float freq = 2400.0, uint16_t br = 800, float freqDev = 400.0, int8_t power = 10, uint16_t preambleLength = 16, uint8_t dataShaping = RADIOLIB_SHAPING_0_5);
 
     /*!
       \brief Initialization method for BLE modem.
@@ -406,7 +406,7 @@ class SX128x: public PhysicalLayer {
 
       \returns \ref status_codes
     */
-    int16_t beginBLE(float freq = 2400.0, uint16_t br = 800, float freqDev = 400.0, int8_t power = 10, float dataShaping = 0.5);
+    int16_t beginBLE(float freq = 2400.0, uint16_t br = 800, float freqDev = 400.0, int8_t power = 10, uint8_t dataShaping = RADIOLIB_SHAPING_0_5);
 
     /*!
       \brief Initialization method for FLRC modem.
@@ -425,7 +425,7 @@ class SX128x: public PhysicalLayer {
 
       \returns \ref status_codes
     */
-    int16_t beginFLRC(float freq = 2400.0, uint16_t br = 650, uint8_t cr = 3, int8_t power = 10, uint16_t preambleLength = 16, float dataShaping = 0.5);
+    int16_t beginFLRC(float freq = 2400.0, uint16_t br = 650, uint8_t cr = 3, int8_t power = 10, uint16_t preambleLength = 16, uint8_t dataShaping = RADIOLIB_SHAPING_0_5);
 
     /*!
       \brief Reset method. Will reset the chip to the default state using RST pin.
@@ -637,13 +637,14 @@ class SX128x: public PhysicalLayer {
     int16_t setFrequencyDeviation(float freqDev) override;
 
     /*!
-      \brief Sets time-bandwidth product of Gaussian filter applied for shaping. Allowed values are  0.5 and 1.0. Set to 0 to disable shaping.
+      \brief Sets time-bandwidth product of Gaussian filter applied for shaping.
+      Allowed values are RADIOLIB_SHAPING_0_5 or RADIOLIB_SHAPING_1_0. Set to RADIOLIB_SHAPING_NONE to disable data shaping.
 
       \param sh Time-bandwidth product of Gaussian filter to be set.
 
       \returns \ref status_codes
     */
-    int16_t setDataShaping(float dataShaping) override;
+    int16_t setDataShaping(uint8_t sh) override;
 
     /*!
       \brief Sets FSK/FLRC sync word in the form of array of up to 5 bytes (FSK). For FLRC modem, the sync word must be exactly 4 bytes long