diff --git a/ds3231/ds3231 b/ds3231/ds3231
index 2768009..54b8917 160000
--- a/ds3231/ds3231
+++ b/ds3231/ds3231
@@ -1 +1 @@
-Subproject commit 27680097203f1482ba61a9cceef689305d7eadc4
+Subproject commit 54b8917705125bdea47f74e4c911650da5bb025f
diff --git a/ds3231/ds3231.cppproj b/ds3231/ds3231.cppproj
index 9715776..26e8f21 100644
--- a/ds3231/ds3231.cppproj
+++ b/ds3231/ds3231.cppproj
@@ -218,6 +218,15 @@
     <Compile Include="clock.hpp">
       <SubType>compile</SubType>
     </Compile>
+    <Compile Include="ds3231\ds3231.hpp">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="ds3231\flags.hpp">
+      <SubType>compile</SubType>
+    </Compile>
+    <Compile Include="ds3231\registers.hpp">
+      <SubType>compile</SubType>
+    </Compile>
     <Compile Include="ds3231\rtc.cpp">
       <SubType>compile</SubType>
     </Compile>
diff --git a/ds3231/main.cpp b/ds3231/main.cpp
index 7301d90..774d247 100644
--- a/ds3231/main.cpp
+++ b/ds3231/main.cpp
@@ -7,6 +7,7 @@
 
 #include <avr/interrupt.h>
 
+#include "ds3231/ds3231.hpp"
 #include "uart/uart.hpp"
 
 #include "systime.h"
@@ -133,12 +134,31 @@ void setAlarm()
 int main()
 {
 	uart_t cSerial;
+	rtc::DS3231<i2c::I2c<i2c::Hardware<100'000>>> ds3231;
+	ds3231.init();
 
 	cSerial.init();
 	sei();
 
 	setup();
 
+	while (true) {
+		const auto date = ds3231.getDateTime();
+		cSerial.txNumber<uint16_t, 10, 4>(date.year);
+		cSerial << '-';
+		cSerial.txNumber<uint8_t, 10, 2>(date.month);
+		cSerial << '-';
+		cSerial.txNumber<uint8_t, 10, 2>(date.day);
+		cSerial << ' ';
+		cSerial.txNumber<uint8_t, 10, 2>(date.hour);
+		cSerial << ':';
+		cSerial.txNumber<uint8_t, 10, 2>(date.minute);
+		cSerial << ':';
+		cSerial.txNumber<uint8_t, 10, 2>(date.second);
+		cSerial << F("\r\n");
+		_delay_ms(1000);
+	}
+
 	constexpr auto BUFFER_SIZE = 32;
 	char szBuffer[BUFFER_SIZE];