Digital sensor data to MQTT server using ESP 32

IR sensor data is monitored in MQTT server

IR sensor is connected to GPIO pin 5 and send the data to MQQT server

https://mqttshared.crystalmq.com/login/

1. Sign up
2. verify email
3. login
4. add new device
5. select MQTT
6. Gateway
7. create ID,Name, Description
8. Access key and access token is the user id and password
9. In Simulink - Settings - Hardware Implementation - Target hardware resources - MQTT properties - enter access key and token
10. In Simulink - Settings - Hardware Implementation - Target hardware resources - wifi properties - Hotspot username as ssid - WPA encryption - password
11. run the simulation
12. check the MQTT server for updated IR sensor data