From 0999882d2d689f4b3192ab5514ef05485db768cf Mon Sep 17 00:00:00 2001
From: Tilman <tliero@gmx.net>
Date: Sun, 14 Jun 2020 15:38:18 +0200
Subject: [PATCH] filter flares on sensor pin

---
 code/audiorocket.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/code/audiorocket.py b/code/audiorocket.py
index 701762f..b4ba325 100644
--- a/code/audiorocket.py
+++ b/code/audiorocket.py
@@ -74,6 +74,12 @@ try:
         logging.info('Wait for photo sensor')
         GPIO.wait_for_edge(PIN_SENSOR, GPIO.RISING)
         
+        # filter short spikes on the sensor cable
+        time.sleep(0.2)
+        if (GPIO.input(PIN_SENSOR) == GPIO.LOW):
+            logging.info('Flare, continue')
+            continue
+        
         logging.info('Photo sensor active, activating light and camera')
         play(SOUND_SCANNING)