diff --git a/src/Module.cpp b/src/Module.cpp
index 7b3c59ae..1f83b7fb 100644
--- a/src/Module.cpp
+++ b/src/Module.cpp
@@ -61,8 +61,16 @@ int16_t Module::SPIsetRegValue(uint32_t reg, uint8_t value, uint8_t msb, uint8_t
     return(RADIOLIB_ERR_INVALID_BIT_RANGE);
   }
 
+  // read the current value
   uint8_t currentValue = SPIreadRegister(reg);
   uint8_t mask = ~((0b11111111 << (msb + 1)) | (0b11111111 >> (8 - lsb)));
+
+  // check if we actually need to update the register
+  if((currentValue & mask) == (value & mask)) {
+    return(RADIOLIB_ERR_NONE);
+  }
+
+  // update the register
   uint8_t newValue = (currentValue & ~mask) | (value & mask);
   SPIwriteRegister(reg, newValue);