From a80fcd98d74f4a8816763cb4cd793994070af6ce Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Fri, 21 Dec 2018 13:53:38 +0100
Subject: [PATCH] Fix wifi strongest signal detection

Fix wifi strongest signal detection (#4704)
---
 sonoff/_changelog.ino   | 1 +
 sonoff/support_wifi.ino | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/sonoff/_changelog.ino b/sonoff/_changelog.ino
index 2950e4094..159f434d4 100644
--- a/sonoff/_changelog.ino
+++ b/sonoff/_changelog.ino
@@ -1,6 +1,7 @@
 /* 6.4.0.1 20181217
  * Add support for AZ-Instrument 7798 CO2 meter/datalogger (#4672)
  * Change RAM usage BMP/BME I2C sensors
+ * Fix wifi strongest signal detection (#4704)
  *
  * 6.4.0 20181217
  * Change GUI Configure Module by using AJAX for data fetch to cut page size (and memory use) by 40%
diff --git a/sonoff/support_wifi.ino b/sonoff/support_wifi.ino
index 7f2771dde..8e45f58ea 100644
--- a/sonoff/support_wifi.ino
+++ b/sonoff/support_wifi.ino
@@ -249,7 +249,7 @@ void WifiBeginAfterScan()
     uint8_t* bssid = WiFi.BSSID();                  // Get current bssid
     memcpy((void*) &wifi_bssid, (void*) bssid, sizeof(wifi_bssid));
     best_network_db = WiFi.RSSI();                  // Get current rssi and add threshold
-    if (best_network_db < -WIFI_RSSI_THRESHOLD) { best_network_db +WIFI_RSSI_THRESHOLD; }
+    if (best_network_db < -WIFI_RSSI_THRESHOLD) { best_network_db += WIFI_RSSI_THRESHOLD; }
     wifi_scan_state = 3;
   }
   // Init scan