diff --git a/.arduino-ci.yml b/.arduino-ci.yml
index 9db6f922..37f758b2 100644
--- a/.arduino-ci.yml
+++ b/.arduino-ci.yml
@@ -17,9 +17,12 @@ unittest:
         - mega2560
     libraries:
       - "LiquidCrystal"
+      - "RTClib"
 
 compile:
     platforms:
       - mega2560
     libraries:
       - "LiquidCrystal"
+      - "RTClib"
+
diff --git a/.gitignore b/.gitignore
index bb02685c..589f2031 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,6 @@
 
 # IDE - VSCode
 .vscode/*
-!.vscode/settings.json
-!.vscode/tasks.json
-!.vscode/launch.json
-!.vscode/extensions.json
 
 # misc
 *.zip
diff --git a/scripts/test.sh b/scripts/test.sh
new file mode 100755
index 00000000..ef17bd83
--- /dev/null
+++ b/scripts/test.sh
@@ -0,0 +1,4 @@
+#! /bin/sh
+bundle config --local path vendor/bundle
+bundle install
+bundle exec arduino_ci_remote.rb  --skip-examples-compilation
diff --git a/src/Devices/Serial_TC.h b/src/Devices/Serial_TC.h
new file mode 100644
index 00000000..ee5fa387
--- /dev/null
+++ b/src/Devices/Serial_TC.h
@@ -0,0 +1,85 @@
+// This class is for the Serial Commands used in Tank Controller.
+// Serial here mostly deals with writing or printing data over through the serial port.
+// Serial.print and Serial.write can be called in different ways to print data.
+// Also print_PID, print_DataTime, print_mac are used to print the PID information, current date information, and the
+// mac address.
+
+#include <Arduino.h>
+#include <RTClib.h>
+
+class Serial_TC {
+private:
+public:
+  Serial_TC() {
+    Serial.begin(9600);
+  }
+
+  void print_PID(double Kp, double Ki, double Kd, double output) {
+    Serial.print(F("Kp:"));
+    Serial.print(Kp);
+    Serial.print(F(" Ki:"));
+    Serial.print(Ki);
+    Serial.print(F(" Kd:"));
+    Serial.println(Kd);
+    Serial.print(F("PID output (s): "));
+    Serial.println(output / 1000, 1);
+  }
+
+  void print_two_digits(int value) {
+    if (value < 10) {
+      Serial.print('0');
+    }
+    Serial.print(value, DEC);
+  }
+  void print_DateTime(DateTime dateTime) {
+    Serial.print(dateTime.year(), DEC);
+    Serial.print('-');
+    print_two_digits(dateTime.month());
+    Serial.print('-');
+    print_two_digits(dateTime.day());
+    Serial.print(' ');
+    print_two_digits(dateTime.hour());
+    Serial.print(':');
+    print_two_digits(dateTime.minute());
+    Serial.print(':');
+    print_two_digits(dateTime.second());
+    Serial.println();
+  }
+
+  void print_mac(byte mac[]) {
+    Serial.print(F("MAC Address: "));
+    Serial.print(mac[0]);
+    for (int i = 1; i < 6; ++i) {
+      Serial.print(':');
+      Serial.print(mac[i]);
+    }
+    Serial.println();
+  }
+
+  void print(String aString, String aString2) {
+    Serial.println(aString);
+    Serial.println(aString2);
+  }
+
+  void print(String aString, int anInt) {
+    Serial.print(aString);
+    Serial.println(anInt);
+  }
+
+  void print(String aString, int anInt, int format) {
+    Serial.print(aString);
+    Serial.println(anInt, format);
+  }
+
+  void print(String aString) {
+    Serial.println(aString);
+  }
+
+  void write(byte aByte) {
+    Serial.write(aByte);
+  }
+
+  void write(char arr[], int anInt) {
+    Serial.write(arr, anInt);
+  }
+};
diff --git a/test.sh b/test.sh
deleted file mode 100755
index 5dcda88f..00000000
--- a/test.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#! /bin/sh
-bundle install --path vendor/bundle
-bundle exec arduino_ci_remote.rb  --skip-compilation
diff --git a/test/Serial_TC.cpp b/test/Serial_TC.cpp
new file mode 100644
index 00000000..5a132865
--- /dev/null
+++ b/test/Serial_TC.cpp
@@ -0,0 +1,60 @@
+#include <RTClib.h>
+#include <Serial_TC.h>
+
+#include "ArduinoUnitTests.h"
+
+unittest(SerialTest) {
+  GodmodeState* state = GODMODE();
+  state->serialPort[0].dataIn = "";   // the queue of data waiting to be read
+  state->serialPort[0].dataOut = "";  // the history of data written
+
+  Serial_TC mySerial;
+
+  mySerial.write('b');
+  assertEqual("", state->serialPort[0].dataIn);
+  assertEqual("b", state->serialPort[0].dataOut);
+
+  state->serialPort[0].dataOut = "";  // the history of data written
+  String test = "test:";
+  mySerial.print(test);
+  assertEqual("test:\r\n", state->serialPort[0].dataOut);
+
+  state->serialPort[0].dataOut = "";  // the history of data written
+  mySerial.print(test, 2);
+  assertEqual("test:2\r\n", state->serialPort[0].dataOut);
+
+  state->serialPort[0].dataOut = "";  // the history of data written
+  mySerial.print("Label: ", "value");
+  assertEqual("Label: \r\nvalue\r\n", state->serialPort[0].dataOut);
+
+  state->serialPort[0].dataOut = "";  // the history of data written
+  mySerial.print("Test Hex:", 78, HEX);
+  assertEqual("Test Hex:4E\r\n", state->serialPort[0].dataOut);
+
+  state->serialPort[0].dataOut = "";  // the history of data written
+  byte mac[6] = {0x90, 0xA2, 0xDA, 0x00, 0x00, 0x00};
+  mySerial.print_mac(mac);
+  assertEqual("MAC Address: 144:162:218:0:0:0\r\n", state->serialPort[0].dataOut);
+
+  state->serialPort[0].dataOut = "";  // the history of data written
+  char temp[] = {'a', 'b', 'c', '\0'};
+  mySerial.write(temp, strlen(temp));
+  assertEqual("abc", state->serialPort[0].dataOut);
+
+  state->serialPort[0].dataOut = "";  // the history of data written
+  mySerial.print_PID(1.1, 2.2, 3.3, 1234.5);
+  assertEqual("Kp:1.1000000000 Ki:2.2000000000 Kd:3.3000000000\r\nPID output (s): 1.2\r\n",
+              state->serialPort[0].dataOut);
+
+  state->serialPort[0].dataOut = "";  // the history of data written
+  DateTime dateTime = DateTime(2020, 1, 2, 3, 4, 5);
+  mySerial.print_DateTime(dateTime);
+  assertEqual("2020-01-02 03:04:05\r\n", state->serialPort[0].dataOut);
+
+  state->serialPort[0].dataOut = "";  // the history of data written
+  dateTime = DateTime(2020, 11, 12, 13, 14, 15);
+  mySerial.print_DateTime(dateTime);
+  assertEqual("2020-11-12 13:14:15\r\n", state->serialPort[0].dataOut);
+}
+
+unittest_main()