diff --git a/examples/MH-Z19B/MH-Z19B.ino b/examples/MH-Z19B/MH-Z19B.ino
new file mode 100644
index 0000000..9a5b7df
--- /dev/null
+++ b/examples/MH-Z19B/MH-Z19B.ino
@@ -0,0 +1,46 @@
+
+
+#include <ESP8266WiFi.h>
+#include <SoftwareSerial.h>
+#include "MHZ.h"
+
+#define CO2_IN D2
+
+#define MH_Z19_RX D7
+#define MH_Z19_TX D6
+
+MHZ co2(MH_Z19_RX, MH_Z19_TX, CO2_IN, MHZ19B);
+
+void setup() {
+  Serial.begin(9600);
+  pinMode(CO2_IN, INPUT);
+  delay(100);
+  Serial.println("MHZ 19B");
+
+  co2.setDebug(true);
+}
+
+void loop() {
+  // Serial.print("\n----- Time from start: ");
+  // Serial.print(millis() / 1000);
+  // Serial.println(" s");
+
+  int ppm_uart = co2.readCO2UART();
+  if (ppm_uart > 0) {
+    Serial.print("PPMuart: ");
+    Serial.print(ppm_uart);
+  }
+
+  // int ppm_pwm = co2.readCO2PWM();
+  // Serial.print(", PPMpwm: ");
+  // Serial.print(ppm_pwm);
+
+  int temperature = co2.getLastTemperature();
+  if (temperature > 0) {
+    Serial.print(", Temperature: ");
+    Serial.println(temperature);
+  }
+
+  // Serial.println("\n------------------------------");
+  delay(1000);
+}