diff --git a/core-writer/include/H5WriteModule.hpp b/core-writer/include/H5WriteModule.hpp
new file mode 100644
index 0000000..989d9b1
--- /dev/null
+++ b/core-writer/include/H5WriteModule.hpp
@@ -0,0 +1,32 @@
+#ifndef H5WRITERMODULE_H
+#define H5WRITERMODULE_H
+
+#include <thread>
+#include "RingBuffer.hpp"
+#include "ZmqReceiver.hpp"
+#include "H5Format.hpp"
+
+class H5WriteModule {
+    typedef std::unordered_map<std::string, HeaderDataType> header_map;
+
+    RingBuffer& ring_buffer_;
+    const header_map& header_values_;
+    const H5Format& format_;
+    std::atomic_bool is_writing_;
+    std::thread writing_thread_;
+
+protected:
+    void write_thread();
+
+public:
+    H5WriteModule(
+            RingBuffer& ring_buffer,
+            const header_map& header_values,
+            const H5Format& format);
+
+    void start_writing();
+    void stop_writing();
+};
+
+
+#endif //H5WRITERMODULE_H
diff --git a/core-writer/src/module/H5WriteModule.cpp b/core-writer/src/module/H5WriteModule.cpp
new file mode 100644
index 0000000..773e1da
--- /dev/null
+++ b/core-writer/src/module/H5WriteModule.cpp
@@ -0,0 +1,32 @@
+#include "H5WriteModule.hpp"
+#include <iostream>
+
+using namespace std;
+
+H5WriteModule::H5WriteModule(
+        RingBuffer& ring_buffer,
+        const header_map& header_values,
+        const H5Format& format) :
+            ring_buffer_(ring_buffer),
+            header_values_(header_values),
+            format_(format),
+            is_writing_(false)
+{
+}
+
+void H5WriteModule::stop_writing()
+{
+    #ifdef DEBUG_OUTPUT
+        using namespace date;
+        using namespace chrono;
+        cout << "[" << system_clock::now() << "]";
+        cout << "[H5WriteModule::stop_writing]";
+        cout << " Disable writing." << endl;
+    #endif
+
+    is_writing_ = false;
+
+    if (writing_thread_.joinable()) {
+        writing_thread_.join();
+    }
+}