From 9bbfb008651c7530dfdb9feba45a90b8bdebc08d Mon Sep 17 00:00:00 2001
From: Aljaz Ogrin <aljaz@ogrin.me>
Date: Mon, 9 Sep 2024 21:32:21 +0200
Subject: [PATCH] Reduced "signal" MQTT messages

---
 EleksTubeHAX_pio/src/Mqtt_client_ips.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/EleksTubeHAX_pio/src/Mqtt_client_ips.cpp b/EleksTubeHAX_pio/src/Mqtt_client_ips.cpp
index 45ce712..e6d0360 100644
--- a/EleksTubeHAX_pio/src/Mqtt_client_ips.cpp
+++ b/EleksTubeHAX_pio/src/Mqtt_client_ips.cpp
@@ -618,7 +618,8 @@ void MqttReportPowerState() {
 void MqttReportWiFiSignal() {
   char signal[5];
   int SignalLevel = WiFi.RSSI();
-  if (SignalLevel != LastSentSignalLevel) {
+  // ignore deviations smaller than 3 dBm
+  if (abs(SignalLevel - LastSentSignalLevel) > 2) {
     sprintf(signal, "%d", SignalLevel);
     sendToBroker("report/signal", signal);  // Reports the signal strength
     LastSentSignalLevel = SignalLevel;