Init commit with many years of arduino sketches and projects. I dont know if the esp8266 includes much, but there are also libraries. I hope they dont have crazy automatic versioning through the Arduino IDE.

Projects/7x5 Display/_1.singleTets/_1.singleTets.ino

@@ -0,0 +1,69 @@
+int idx = 0; unsigned long last;
+
+void setup() {
+  last = millis();  
+  pinMode( 3, OUTPUT );
+  pinMode( 9, OUTPUT );
+  pinMode( 10, OUTPUT );
+  pinMode( 4, OUTPUT );
+  pinMode( 12, OUTPUT );
+
+  pinMode( 5, OUTPUT );
+  pinMode( 2, OUTPUT );
+  pinMode( 6, OUTPUT );
+  pinMode( 11, OUTPUT );
+  pinMode( 7, OUTPUT );
+  pinMode( 13, OUTPUT );
+  pinMode( 8, OUTPUT );
+
+  byte led[5][7] = {
+    {0,0,0,0,0},
+    {0,0,0,0,0},
+    {0,0,0,0,0},
+    {0,0,0,0,0},
+    {0,0,0,0,0},
+    {0,0,0,0,0},
+    {0,0,0,0,0},
+}
+
+byte leds[7][5]; 
+
+void setPattern( byte pattern[20][5], int idx ) {
+  for( int r =0; r < 7; r++) {
+    for( int c = 0; c < 5; c++) {
+      leds[r][c] = pattern[r + idx][c];
+     }
+   } 
+}
+
+void draw() {   
+
+  for( int r =0; r < 7; r ++ ) {
+    digitalWrite( r + 2, HIGH );
+    for( int c=0; c < 5; c ++ ) {
+      digitalWrite( 13 - c, ( leds[r][c] == 1 ? LOW : HIGH ));
+    }
+    delayMicroseconds(900);
+    digitalWrite( r + 2, LOW );
+  }
+}
+
+void loop() {
+  if ( millis() - last > 400 ) {
+    idx = (idx == 0 ?  7 : 0);
+    last = millis();
+  }
+
+  byte tmp[14][5] = {
+  { 1,1,1,1,1},
+  { 1,1,1,1,1},
+  { 1,1,1,1,1},
+  { 1,1,1,1,1},
+  { 1,1,1,1,1},
+  { 1,1,1,1,1},
+  { 1,1,1,1,1},
+  };
+
+  setPattern( tmp, idx );
+  draw();
+}