Added a very basic test sketch to test components on breadboard before first draft of main sketch.

Command/main/main.ino

@@ -0,0 +1,38 @@
+const int potPin = 27;
+const int butPin = 16;
+const int U_Led = 14;
+const int L_Led = 12;
+const int R_Led = 15;
+const int D_Led = 13;
+int potVal = 0;
+bool butState = 0;
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(115200);
+  pinMode(U_Led, OUTPUT);
+  pinMode(L_Led, OUTPUT);
+  pinMode(R_Led, OUTPUT);
+  pinMode(D_Led, OUTPUT);
+  pinMode(butPin, INPUT_PULLUP);
+}
+
+void loop() {
+// put your main code here, to run repeatedly:
+//potVal = analogRead(potPin);
+//Serial.println(potVal);
+butState = digitalRead(butPin);
+if (butState == LOW) {
+    // turn LED on:
+    digitalWrite(U_Led, HIGH);
+    digitalWrite(L_Led, HIGH);
+    digitalWrite(R_Led, HIGH);
+    digitalWrite(D_Led, HIGH);
+  } else {
+    // turn LED off:
+    digitalWrite(U_Led, LOW);
+    digitalWrite(L_Led, LOW);
+    digitalWrite(R_Led, LOW);
+    digitalWrite(D_Led, LOW);
+  }
+delay(20);
+}