example of GPIO button trigger for Orange Pi

tools/check-gpio.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+#
+# example of service to monitor a GPIO for Orange Pi PC 2e
+# (unfortunately it doesn't support edge triggers)
+
+import sys
+import ssl
+import time
+from urllib import request
+import OPi.GPIO as GPIO
+
+URL = "https://localhost:9000/button"
+PIN = 12
+DEBOUNCE_CYCLES = 5
+
+GPIO.setboard(GPIO.PC2)
+GPIO.setmode(GPIO.BOARD)
+GPIO.setup(PIN, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+
+ctx = ssl.create_default_context()
+ctx.check_hostname = False
+ctx.verify_mode = ssl.CERT_NONE
+
+activeCycles = 0
+while True:
+    if GPIO.input(PIN):
+        if activeCycles == DEBOUNCE_CYCLES:
+            print("BUTTON PRESSED!")
+            req =  request.Request(URL, data={})
+            request.urlopen(req, context=ctx)
+        activeCycles += 1
+    else:
+        activeCycles = 0
+    time.sleep(0.01)
+
+OPi.GPIO.cleanup()