diff --git a/RX_FSK/RX_FSK.ino b/RX_FSK/RX_FSK.ino
index c026fe84..e22145b9 100644
--- a/RX_FSK/RX_FSK.ino
+++ b/RX_FSK/RX_FSK.ino
@@ -670,6 +670,7 @@ struct st_configitems config_list[] = {
   {"touch_thresh", 0, &sonde.config.touch_thresh},
   {"power_pout", 0, &sonde.config.power_pout},
   {"led_pout", 0, &sonde.config.led_pout},
+  {"piezoe_pout", 0, &sonde.config.piezoe_pout},
   {"gps_rxd", 0, &sonde.config.gps_rxd},
   {"gps_txd", 0, &sonde.config.gps_txd},
   {"batt_adc", 0, &sonde.config.batt_adc},
@@ -1380,6 +1381,7 @@ void touchISR2();
 
 Ticker ticker;
 Ticker ledFlasher;
+Ticker tone;
 
 #define IS_TOUCH(x) (((x)!=255)&&((x)!=-1)&&((x)&128))
 void initTouch() {
@@ -1502,6 +1504,17 @@ void flashLed(int ms) {
   }
 }
 
+void toneOffCallback() {
+  ledcWriteTone(0,0);
+}
+
+void toneOn(int ms) {
+  if (sonde.config.piezoe_pout >= 0) {
+    ledcWriteTone(0,440); // 440 Hz - Middle A
+    tone.once_ms(ms, toneOffCallback);
+  }
+}
+
 int doTouch = 0;
 void checkTouchStatus() {
   checkTouchButton(button1);
@@ -1765,6 +1778,11 @@ void setup()
     flashLed(1000); // testing
   }
 
+  if (sonde.config.piezoe_pout >= 0) {
+    ledcAttachPin(sonde.config.piezoe_pout,0);
+    toneOn(1000); // testing
+  }
+
   button1.pin = sonde.config.button_pin;
   button2.pin = sonde.config.button2_pin;
   if (button1.pin != 0xff) {
diff --git a/RX_FSK/data/cfg.js b/RX_FSK/data/cfg.js
index a0df69e7..c3da3df7 100644
--- a/RX_FSK/data/cfg.js
+++ b/RX_FSK/data/cfg.js
@@ -88,6 +88,7 @@ var cfgs = [
 [ "touch_thresh", "Touch button threshold<br>(0 for calib mode)"],
 [ "power_pout", "Power control port"],
 [ "led_pout", "LED output port"],
+[ "piezoe_pout", "Piezo output port"],
 [ "gps_rxd", "GPS RXD pin (-1 to disable)"],
 [ "gps_txd", "GPS TXD pin (not really needed)"],
 [ "batt_adc", "Battery measurement pin"],
diff --git a/RX_FSK/data/config.txt b/RX_FSK/data/config.txt
index 6d8e2543..da30a655 100644
--- a/RX_FSK/data/config.txt
+++ b/RX_FSK/data/config.txt
@@ -10,6 +10,8 @@
 #button2_axp=0
 # LED port
 #led_pout=-1
+# Piezoe Speaker
+piezoe_pout=-1
 # OLED Setup is depending on hardware of LoRa board
 # TTGO v1:  SDA=4  SCL=15, RST=16 
 # TTGO v2:  SDA=21 SCL=22, RST=16
diff --git a/RX_FSK/src/Sonde.cpp b/RX_FSK/src/Sonde.cpp
index d3afe3b8..18bf8918 100644
--- a/RX_FSK/src/Sonde.cpp
+++ b/RX_FSK/src/Sonde.cpp
@@ -92,6 +92,7 @@ void Sonde::defaultConfig() {
 	}
 	config.touch_thresh = 70;
 	config.led_pout = -1;
+	config.piezoe_pout = -1;
 	config.power_pout = -1;
 	config.spectrum=10;
 	// Try autodetecting board type
@@ -462,6 +463,8 @@ void Sonde::setup() {
 
 extern void flashLed(int ms);
 
+extern void toneOn(int ms);
+
 void Sonde::receive() {
 	uint16_t res = 0;
 	SondeInfo *si = &sondeList[rxtask.currentSonde];
@@ -490,6 +493,7 @@ void Sonde::receive() {
 	// state information for RX_TIMER / NORX_TIMER events
         if(res==RX_OK || res==RX_ERROR) {  // something was received...
 		flashLed( (res==RX_OK)?700:100);
+		toneOn( (res==RX_OK)?200:50);
                 if(si->lastState != 1) {
                         si->rxStart = millis();
                         si->lastState = 1;
diff --git a/RX_FSK/src/Sonde.h b/RX_FSK/src/Sonde.h
index 422d5848..a2a87626 100644
--- a/RX_FSK/src/Sonde.h
+++ b/RX_FSK/src/Sonde.h
@@ -240,6 +240,7 @@ typedef struct st_rdzconfig {
 	int button2_axp;		// Use AXP192 power button as button2
 	int touch_thresh;		// Threshold value (0..100) for touch input button
 	int led_pout;			// POUT port number of LED (used as serial monitor)
+	int piezoe_pout;		// POUT port number of Piezoe Speaker
 	int power_pout;			// Power control pin (for Heltec v2)
 	int disptype;			// 0=OLED; 1=ILI9225
 	int oled_sda;			// OLED/TFT data pin 
diff --git a/RX_FSK/src/conn-mqtt.cpp b/RX_FSK/src/conn-mqtt.cpp
index e8149d91..4aafca78 100644
--- a/RX_FSK/src/conn-mqtt.cpp
+++ b/RX_FSK/src/conn-mqtt.cpp
@@ -112,7 +112,7 @@ void MQTT::publishUptime()
     char payload[256];
     // maybe TODO: Use dynamic position if GPS is available?
     // rxlat, rxlon only if not empty
-    snprintf(payload, 256, "{\"uptime\": %lu, \"user\": \"%s\", ", millis(), sonde.config.mqtt.username);
+    snprintf(payload, 256, "{\"uptime\": %lu, \"user\": \"%s\", ", int (millis() / 1000, sonde.config.mqtt.username);
     if( !isnan(sonde.config.rxlat) && !isnan(sonde.config.rxlon) ) {
         snprintf(payload, 256, "%s\"rxlat\": %.5f, \"rxlon\": %.5f, ", payload, sonde.config.rxlat, sonde.config.rxlon);
     }
diff --git a/RX_FSK/version.h b/RX_FSK/version.h
index 7df7fe7e..633aa5ca 100644
--- a/RX_FSK/version.h
+++ b/RX_FSK/version.h
@@ -1,4 +1,4 @@
 const char *version_name = "rdzTTGOsonde";
 const char *version_id = "devel20240530";
 const int SPIFFS_MAJOR=2;
-const int SPIFFS_MINOR=17;
+const int SPIFFS_MINOR=18;