How-to-test-AWS-IoT-By-Using-PM4.md

+1. Create a thing
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+https://us-west-2.console.aws.amazon.com/iot/home?region=us-west-2#/thinghub
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+2. Create certificate
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+https://us-west-2.console.aws.amazon.com/iot/home?region=us-west-2#/thing/Lamp
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+![Screen_Shot_2020-03-12_at_5.37.49_PM](uploads/91fcb26aea5b0d28d45eeb034022d892/Screen_Shot_2020-03-12_at_5.37.49_PM.png)
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+3. Add topics into policy
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+![Screen_Shot_2020-03-12_at_5.38.58_PM](uploads/aaae0a293695cdeedc05c70b9530f11d/Screen_Shot_2020-03-12_at_5.38.58_PM.png)
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+![Screen_Shot_2020-03-12_at_5.39.22_PM](uploads/25ec2996fb91fe731604395f92980832/Screen_Shot_2020-03-12_at_5.39.22_PM.png)
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+![Screen_Shot_2020-03-12_at_5.39.58_PM](uploads/2cdb92c924d2a3c8a6dd9c4edea88495/Screen_Shot_2020-03-12_at_5.39.58_PM.png)