diff --git a/lib/M5UnitGesture/src/unit/unit_PAJ7620U2.cpp b/lib/M5UnitGesture/src/unit/unit_PAJ7620U2.cpp
index 6ebb467..447fa21 100644
--- a/lib/M5UnitGesture/src/unit/unit_PAJ7620U2.cpp
+++ b/lib/M5UnitGesture/src/unit/unit_PAJ7620U2.cpp
@@ -569,7 +569,7 @@ bool UnitPAJ7620U2::readObjectCenter(uint16_t& x, uint16_t& y) {
 }
 
 bool UnitPAJ7620U2::readCursor(uint16_t& x, uint16_t& y) {
-    std::array<uint8_t, 4> raw{};  // X_LOW , 4?
+    //    std::array<uint8_t, 4> raw{};  // X_LOW , 4?
 
     uint8_t xl{}, xh{}, yl{}, yh{};
     if (read_banked_register8(CURSOR_CLAMP_CENTER_X_LOW, xl) &&
diff --git a/lib/M5UnitGesture/src/unit/unit_PAJ7620U2.hpp b/lib/M5UnitGesture/src/unit/unit_PAJ7620U2.hpp
index 23701f4..fe8069d 100644
--- a/lib/M5UnitGesture/src/unit/unit_PAJ7620U2.hpp
+++ b/lib/M5UnitGesture/src/unit/unit_PAJ7620U2.hpp
@@ -27,6 +27,8 @@
 
 #include <M5UnitComponent.hpp>
 #include <m5_utility/container/circular_buffer.hpp>
+#include <array>
+#include <memory>
 
 namespace m5 {
 namespace unit {
@@ -87,6 +89,8 @@ enum class Frequency : int8_t {
   @brief Measurement data group
  */
 struct Data {
+    Data() {
+    }
     // Common
     // [0,1]:gesture
     // Proximity
@@ -145,7 +149,6 @@ struct Data {
 
 }  // namespace paj7620u2
 
-
 /*!
   @class UnitPAJ7620U2
   @brief PAJ7620U2 unit
diff --git a/lib/M5UnitHeart/src/utility/heart_rate.cpp b/lib/M5UnitHeart/src/utility/heart_rate.cpp
index 8398f4b..f35284b 100644
--- a/lib/M5UnitHeart/src/utility/heart_rate.cpp
+++ b/lib/M5UnitHeart/src/utility/heart_rate.cpp
@@ -79,7 +79,9 @@ namespace max30100 {
 
 HeartRate::HeartRate(const uint32_t srate, const float threshold,
                      const size_t max_data_size)
-    : _samplingRate{srate}, _threshold(threshold), _maxDataSize{max_data_size} {
+    : _samplingRate{(float)srate},
+      _threshold(threshold),
+      _maxDataSize{max_data_size} {
     assert(srate && "SamplingRate must not be zero");
     if (!max_data_size) {
         _maxDataSize = (size_t)srate * 30U;
diff --git a/test/embedded/test_scd40/scd40_test.cpp b/test/embedded/test_scd40/scd40_test.cpp
index 5416896..a50f7bf 100644
--- a/test/embedded/test_scd40/scd40_test.cpp
+++ b/test/embedded/test_scd40/scd40_test.cpp
@@ -37,10 +37,12 @@ class TestSCD40 : public ComponentTestBase<UnitSCD40, bool> {
 #else
         auto ptr = new m5::unit::UnitSCD40();
 #endif
-        auto cfg           = ptr->config();
-        cfg.start_periodic = false;
-        cfg.stored_size    = 2;
-        ptr->config(cfg);
+        if (ptr) {
+            auto cfg           = ptr->config();
+            cfg.start_periodic = false;
+            cfg.stored_size    = 2;
+            ptr->config(cfg);
+        }
         return ptr;
     }
     virtual bool is_using_hal() const override {