Introduction to espif ESP AWS IOT

Espressif in the light of AWS IoT The application of has a special warehouse esp-aws-iot, Can be very convenient in ESP On chip development AWS IoT Application . This time tls_mutual_auth Example to demonstrate how to ESP32-C3 On the development AWS IoT application .

AWS IoT End operation

AWS IoT The end is mainly establish Things, and Download the corresponding certificate file that will do .

1. land AWS, stay Services Input in IoT Core, Access control .
   

2. stay IoT Core On the left of the console All devices Options Things Options , After clicking on Create things establish things.
   

3. choice things The number of , Choose here Create single thing
   

4. Appoint thing Properties of . Here is just a simple input Thing name You can go to the next step .
   

5. Automatically generated and created thing Matching certificates . These certificates will be compiled into bin In file .
   

6. establish policy. The certificate is used to verify the legitimacy of the device , and policy It focuses on Access control .
   

7. Set up policy. In addition to designating policy name outside , You also need to specify Policy action and Policy resource These two properties .Policy action Is an option box , There's something in it, right thing Of Access control . such as iot: Connect You can set this thing Can only connect to AWS IoT, You can't do any subscription and publishing . For other permission controls, please refer to the corresponding instructions . Choose here * Open all permission settings .
   
   

8. Choose the one you just created policy .
   

9. Download the certificate . This step is very important , Because I want to thing Corresponding equipment certificate , Public key , Private key and CA Download the certificate together .
   

10. obtain Endpoint. stay IoT Core On the left of the console Settings Get from page Endpoint . In the back menuconfig Set in .
    

ESP32-C3 End operation

1. Copy the certificate to tls_mutual_auth/main/certs Under the table of contents , Here you only need to copy the device certificate , Private key and CA Certificate file is enough . But the name needs to be changed ：

   • AmazonRootCA1.pem It is amended as follows root_cert_auth.pem
   • *-private.pem.key It is amended as follows client.key
   • *-certificate.pem.crt It is amended as follows client.crt

2. Set up menuconfig Medium MQTT_BROKER_ENDPOINT Change to actual Endpoint.

3. To configure WIFI Of SSID and PASSWORD Wait for the information .