Restart device after PMS sensor read failed 10 times

src/PMS/PMS.cpp

@@ -12,6 +12,7 @@ bool PMSBase::begin(Stream *stream) {
   this->stream = stream;
 
   failed = true;
+  failCount = 0;
   lastRead = 0; // To read buffer on handle without wait after 1.5sec
 
   this->stream->flush();
@@ -147,6 +148,36 @@ void PMSBase::handle() {
  */
 bool PMSBase::isFailed(void) { return failed; }
 
+/**
+ * @brief Increate number of fail
+ * 
+ */
+void PMSBase::updateFailCount(void) {
+  if (failCount < failCountMax) {
+    failCount++;
+  }
+}
+
+/**
+ * @brief Reset number of fail
+ * 
+ */
+void PMSBase::resetFailCount(void) {failCount = 0;}
+
+/**
+ * @brief Get number of fail
+ * 
+ * @return int 
+ */
+int PMSBase::getFailCount(void) { return failCount; }
+
+/**
+ * @brief Get maximum of fail count max
+ * 
+ * @return int 
+ */
+int PMSBase::getFailCountMax(void) { return failCountMax; }
+
 /**
  * @brief Read PMS 0.1 ug/m3 with CF = 1 PM estimates
  *

src/PMS/PMS.h

@@ -3,11 +3,17 @@
 
 #include <Arduino.h>
 
+#define PMS_FAIL_COUNT_SET_INVALID 3
+
 class PMSBase {
 public:
   bool begin(Stream *stream);
   void handle();
   bool isFailed(void);
+  void updateFailCount(void);
+  void resetFailCount(void);
+  int getFailCount(void);
+  int getFailCountMax(void);
   uint16_t getRaw0_1(void);
   uint16_t getRaw2_5(void);
   uint16_t getRaw10(void);
@@ -36,6 +42,8 @@ private:
   int packageIndex;
   bool failed = false;
   uint32_t lastRead;
+  const int failCountMax = 10;
+  int failCount = 0;
 
   int16_t toI16(char *buf);
   uint16_t toU16(char* buf);

src/PMS/PMS5003.cpp

@@ -175,3 +175,33 @@ void PMS5003::handle(void) { pms.handle(); }
  * @return false Communication timeout or sensor has removed
  */
 bool PMS5003::isFailed(void) { return pms.isFailed(); }
+
+/**
+ * @brief Increate number of fail
+ * 
+ */
+void PMS5003::updateFailCount(void) {
+  pms.updateFailCount();
+}
+
+/**
+ * @brief Reset fail count
+ * 
+ */
+void PMS5003::resetFailCount(void) {
+  pms.resetFailCount();
+}
+
+/**
+ * @brief Get number of fail count
+ * 
+ * @return int 
+ */
+int PMS5003::getFailCount(void) { return pms.getFailCount(); }
+
+/**
+ * @brief Get number of fail count max
+ * 
+ * @return int 
+ */
+int PMS5003::getFailCountMax(void) { return pms.getFailCountMax(); }

src/PMS/PMS5003.h

@@ -19,6 +19,10 @@ public:
   void end(void);
   void handle(void);
   bool isFailed(void);
+  void updateFailCount(void);
+  void resetFailCount(void);
+  int getFailCount(void);
+  int getFailCountMax(void);
   int getPm01Ae(void);
   int getPm25Ae(void);
   int getPm10Ae(void);

src/PMS/PMS5003T.cpp

@@ -216,3 +216,32 @@ void PMS5003T::handle(void) { pms.handle(); }
  */
 bool PMS5003T::isFailed(void) { return pms.isFailed(); }
 
+/**
+ * @brief Increate number of fail
+ * 
+ */
+void PMS5003T::updateFailCount(void) {
+  pms.updateFailCount();
+}
+
+/**
+ * @brief Reset fail count
+ * 
+ */
+void PMS5003T::resetFailCount(void) {
+  pms.resetFailCount();
+}
+
+/**
+ * @brief Get fail count
+ * 
+ * @return int 
+ */
+int PMS5003T::getFailCount(void) { return pms.getFailCount(); }
+
+/**
+ * @brief Get fail count max
+ * 
+ * @return int 
+ */
+int PMS5003T::getFailCountMax(void) { return pms.getFailCountMax(); }

src/PMS/PMS5003T.h

@@ -22,6 +22,10 @@ public:
 
   void handle(void);
   bool isFailed(void);
+  void updateFailCount(void);
+  void resetFailCount(void);
+  int getFailCount(void);
+  int getFailCountMax(void);
   int getPm01Ae(void);
   int getPm25Ae(void);
   int getPm10Ae(void);