diff --git a/LED_check.py b/LED_check.py
new file mode 100644
index 0000000..5c1f434
--- /dev/null
+++ b/LED_check.py
@@ -0,0 +1,66 @@
+import RPi.GPIO as GPIO
+from uldaq import (get_daq_device_inventory, DaqDevice, AInScanFlag, ScanStatus,
+                   ScanOption, create_float_buffer, InterfaceType, AiInputMode)
+from time import time
+
+
+def GPIO_setup(LED1_pin, LED2_pin, Button1_pin, Button2_pin):
+    # LED output pins
+    GPIO.setmode(GPIO.BOARD)
+
+    GPIO.setup(LED1_pin, GPIO.OUT)  # 1
+    GPIO.output(LED1_pin, GPIO.LOW)
+    GPIO.setup(LED2_pin, GPIO.OUT)  # 2
+    GPIO.output(LED2_pin, GPIO.LOW)
+
+    LED_status = [False, False]
+
+    # switch controlled input
+    GPIO.setup(Button1_pin, GPIO.IN)
+    GPIO.setup(Button2_pin, GPIO.IN)
+
+    return LED_status
+
+
+def main():
+    LED1_pin = 11
+    LED2_pin = 13
+    Button1_pin = 16
+    Button2_pin = 18
+
+    LED_status = GPIO_setup(LED1_pin, LED2_pin, Button1_pin, Button2_pin)
+
+    LED1_t = time()
+    LED1_t_interval = 2
+
+    LED2_t = time()
+    LED2_t_interval = 0.5
+
+    t0 = time()
+
+    while time() - t0 < 10:
+        # LED1 blink every 2 sec
+        if time() - LED1_t < .1 and LED_status[0] == False:
+            LED_status[0] = True
+            GPIO.output(LED1_pin, GPIO.HIGH)
+        if time() - LED1_t >= .1 and LED_status[0] == True:
+            LED_status[0] = False
+            GPIO.output(LED1_pin, GPIO.LOW)
+
+        if time() - LED1_t >= LED1_t_interval:
+            LED1_t = time()
+
+        # LED blink every 0.5 sec
+        if time() - LED2_t < .1 and LED_status[1] == False:
+            LED_status[1] = True
+            GPIO.output(LED2_pin, GPIO.HIGH)
+        if time() - LED2_t >= .1 and LED_status[1] == True:
+            LED_status[1] = False
+            GPIO.output(LED2_pin, GPIO.LOW)
+
+        if time() - LED1_t >= LED1_t_interval:
+            LED1_t = time()
+
+
+if __name__ == '__main__':
+    main()