diff --git a/examples/CO2Sensor/CO2Sensor.ino b/examples/CO2Sensor/CO2Sensor.ino
index ba78acf..f19940a 100644
--- a/examples/CO2Sensor/CO2Sensor.ino
+++ b/examples/CO2Sensor/CO2Sensor.ino
@@ -95,7 +95,7 @@ void loop()
 	long co2ppm = 2 * ((duration/1000) - 2);
 	//Serial.print(co2ppm);
 	if ((co2ppm != lastAIQ)&&(abs(co2ppm-lastAIQ)>=10)) {
-		send(msg.set((long)ceil(co2ppm)));
+		send(msg.set((int32_t)ceil(co2ppm)));
 		lastAIQ = ceil(co2ppm);
 	}
 
diff --git a/examples/DustSensorDSM/DustSensorDSM.ino b/examples/DustSensorDSM/DustSensorDSM.ino
index 7564973..418c7ae 100644
--- a/examples/DustSensorDSM/DustSensorDSM.ino
+++ b/examples/DustSensorDSM/DustSensorDSM.ino
@@ -95,7 +95,7 @@ void loop()
 	Serial.print("\n");
 
 	if ((concentrationPM25 != lastDUSTPM25)&&(concentrationPM25>0)) {
-		send(dustMsgPM25.set((long)ceil(concentrationPM25)));
+		send(dustMsgPM25.set((int32_t)ceil(concentrationPM25)));
 		lastDUSTPM25 = ceil(concentrationPM25);
 	}
 
@@ -110,7 +110,7 @@ void loop()
 	long ppmv=(concentrationPM10*0.0283168/100/1000) *  (0.08205*temp)/0.01;
 
 	if ((ceil(concentrationPM10) != lastDUSTPM10)&&((long)concentrationPM10>0)) {
-		send(dustMsgPM10.set((long)ppmv));
+		send(dustMsgPM10.set((int32_t)ppmv));
 		lastDUSTPM10 = ceil(concentrationPM10);
 	}
 
diff --git a/examples/SoilMoistSensor/SoilMoistSensor.ino b/examples/SoilMoistSensor/SoilMoistSensor.ino
index c4900ba..719d8ce 100644
--- a/examples/SoilMoistSensor/SoilMoistSensor.ino
+++ b/examples/SoilMoistSensor/SoilMoistSensor.ino
@@ -138,7 +138,7 @@ void loop()
 	Serial.println ();
 
 	//send back the values
-	send(msg.set((long int)ceil(sensor1)));
+	send(msg.set((int32_t)ceil(sensor1)));
 	// delay until next measurement (msec)
 	sleep(SLEEP_TIME);
 }