Add counting loop from issue #108

examples/issue_108.py

@@ -0,0 +1,41 @@
+#!usr/bin/env python
+
+import time
+import argparse
+
+from luma.led_matrix.device import max7219
+from luma.core.interface.serial import spi, noop
+from luma.core.render import canvas
+from luma.core.legacy import text
+
+print('Press Ctrl-C to quit...')
+
+serial = spi(port=0, device=0, gpio=noop())
+device = max7219(serial, cascaded=5, block_orientation=0)
+
+currentLoop = 0
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description='matrix_demo arguments',
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+
+    parser.add_argument('--cascaded', '-n', type=int, default=5, help='Number of cascaded MAX7219 LED matrices')
+    parser.add_argument('--block-orientation', type=int, default=0, choices=[0, 90, -90], help='Corrects block orientation when wired vertically')
+
+    args = parser.parse_args()
+
+    while True:
+
+        currentLoop = currentLoop + 1
+
+        Tv = str(currentLoop)
+        Tv = Tv.rjust(5, " ")
+
+        with canvas(device) as draw:
+            text(draw, (0, 0), Tv, fill="white")
+
+        print(Tv)
+        time.sleep(1)
+
+        if currentLoop >= 99999:
+            currentLoop = 0