From 6f88dabdf30052ced1ccc2f8c0b7697ef2d8a1de Mon Sep 17 00:00:00 2001
From: shrkey <barry@shrkey.com>
Date: Mon, 15 Aug 2016 14:10:26 +0100
Subject: [PATCH] added math

---
 darkwater_640/darkwater_640.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/darkwater_640/darkwater_640.py b/darkwater_640/darkwater_640.py
index c5516cb..b4ce144 100644
--- a/darkwater_640/darkwater_640.py
+++ b/darkwater_640/darkwater_640.py
@@ -3,6 +3,7 @@
 import RPi.GPIO as GPIO
 from PCA9685 import PCA9685
 import time
+import math
 
 # class Adafruit_StepperMotor:
 #       MICROSTEPS = 8