diff --git a/libraries/Wire/src/Wire.cpp b/libraries/Wire/src/Wire.cpp
index 1d8d3ee556..c0b1a25d7a 100644
--- a/libraries/Wire/src/Wire.cpp
+++ b/libraries/Wire/src/Wire.cpp
@@ -45,6 +45,15 @@ TwoWire::TwoWire(uint32_t sda, uint32_t scl)
_i2c.scl = digitalPinToPinName(scl);
}
+/**
+ * @brief TwoWire destructor
+ * @retval None
+ */
+TwoWire::~TwoWire()
+{
+ end();
+}
+
// Public Methods //////////////////////////////////////////////////////////////
void TwoWire::begin(uint32_t sda, uint32_t scl)
@@ -106,11 +115,15 @@ void TwoWire::begin(int address, bool generalCall, bool NoStretchMode)
void TwoWire::end(void)
{
i2c_deinit(&_i2c);
- free(txBuffer);
- txBuffer = nullptr;
+ if (txBuffer != nullptr) {
+ free(txBuffer);
+ txBuffer = nullptr;
+ }
txBufferAllocated = 0;
- free(rxBuffer);
- rxBuffer = nullptr;
+ if (rxBuffer != nullptr) {
+ free(rxBuffer);
+ rxBuffer = nullptr;
+ }
rxBufferAllocated = 0;
}
diff --git a/libraries/Wire/src/Wire.h b/libraries/Wire/src/Wire.h
index e5a5d8d4e3..fafea29dd9 100644
--- a/libraries/Wire/src/Wire.h
+++ b/libraries/Wire/src/Wire.h
@@ -78,6 +78,7 @@ class TwoWire : public Stream {
public:
TwoWire();
TwoWire(uint32_t sda, uint32_t scl);
+ ~TwoWire();
// setSCL/SDA have to be called before begin()
void setSCL(uint32_t scl)
{
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