How-to-test-Azure-Iot-with-MQTT.md

@@ -60,3 +60,17 @@ open the powershell for windows, use Azure CLI to enter the command and listen t
 use VSCode Azure Extension to send "Cloud to Device" message, and see what happends on the device
 
 ![批注_2020-03-04_181933](uploads/e52e36990977280c40137dfa6246c677/批注_2020-03-04_181933.png)
+
+## 8. Settings in PM4
+
+![批注_2020-03-16_130028](uploads/390c93246da0ccfc6af31bcc95465ef7/批注_2020-03-16_130028.png)
+
+1 = "Your Hubname".azure-devices.net
+
+2 = "Your Device Name"
+
+3 = "1"/"2"/?api-version=2018-06-30
+
+Note: please remove the double quotes in above 1,2 and 3 when you input into PM4.
+
+## 9. How to generate client certificate