diff --git a/mapid-count.py b/mapid-count.py
new file mode 100644
index 0000000..c233aea
--- /dev/null
+++ b/mapid-count.py
@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+
+import time
+import sys
+import serial
+
+
+SERIAL_PORT = "/dev/cu.usbserial-A700e0gN"
+SERIAL_SPEED = 9600
+#SERIAL_SPEED = 19200
+#SERIAL_SPEED = 115200
+
+
+arduino = serial.Serial(port=SERIAL_PORT, baudrate=SERIAL_SPEED, timeout=.1)
+
+
+def write_read(x):
+	arduino.write(bytes(x,  'utf-8'))
+	time.sleep(0.05)
+	data = arduino.readline()
+	return  data
+
+
+def countdown(start: int):
+	for i in range(start, -1, -1):
+		arduino.write(bytes("CLS\r\n", 'utf8'))
+		arduino.write(bytes("LINE 1\r\n", 'utf8'))
+		arduino.write(bytes("ECHO Countdown\r\n", 'utf8'))
+		arduino.write(bytes("LINE 2\r\n", 'utf8'))
+		print(str(i))
+		arduino.write(bytes("ECHO " + str(i) + "\r\n", 'utf8'))
+		time.sleep(1)
+	arduino.write(bytes("CLS\r\n", 'utf8'))
+	arduino.write(bytes("LINE 2\r\n", 'utf8'))
+	arduino.write(bytes("ECHO BOOM!!!\r\n", 'utf8'))
+
+
+def main():
+	while True:
+		num = int(input("Enter a number (-1=exit): "))
+		if num < 0:
+			sys.exit(0)
+		#arduino.write(bytes("CLS\r\n", 'utf8'))
+		#arduino.write(bytes("LINE 1\r\n", 'utf8'))
+		#arduino.write(bytes("ECHO Countdown\r\n", 'utf8'))
+		# arduino.write(bytes("ECHO C " + str(num) + "\r\n", 'utf8'))
+		countdown(num)
+
+
+if __name__ == "__main__":
+	try:
+		main()
+	except KeyboardInterrupt:
+		print("^C", file=sys.stderr)
+
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..624744f
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,4 @@
+# requirements.txt
+
+serial
+