From 0d2920423ba421d6f9031e56bbb6f7e6294aa79c Mon Sep 17 00:00:00 2001
From: Roy van der Veen <roy@appnormal.com>
Date: Sun, 19 Apr 2020 23:47:51 +0200
Subject: [PATCH] Zero the movingSum and buffer for laggedMovingAverage to
 prevent persistent error from being introduced on re-initialization

---
 src/main/common/filter.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main/common/filter.c b/src/main/common/filter.c
index ef2d62451..cbbc94697 100644
--- a/src/main/common/filter.c
+++ b/src/main/common/filter.c
@@ -208,6 +208,8 @@ void laggedMovingAverageInit(laggedMovingAverage_t *filter, uint16_t windowSize,
     filter->movingWindowIndex = 0;
     filter->windowSize = windowSize;
     filter->buf = buf;
+    filter->movingSum = 0;
+    memset(filter->buf, 0, windowSize * sizeof(float));
     filter->primed = false;
 }