Q$35$ Explain the basic requirements of security in IoT system.

You are required to design your own security protocol with start byte, stop byte, payload along with security codes in your IoT based project. You are asked to send the data $($payload$)3$A$20$F$14$B$2$F$36492$A$17462356$ over wireless medium. Select the security bytes with necessary explanation and show the original data are extracted after decryption.

Q$36$ Explain the design and development of WSN and IoT based smart home for care of inhabitant living alone at home.

Q$37$ You need to design and develop a IoT based system to monitor solar panels on the roof of your house. There are total $8$ panels each of $20$ V$,10$ A capacity. Develop an IoT system including electronic circuits to monitor voltage, current, light irradiance, temperature and power developed by each and every panel to check their health. You develop your own protocol.

How do you measure different levels of voltage with highest accuracy? Please explain with proper circuit diagram.

How do you measure different levels of current with highest accuracy? Please explain with proper circuit diagram.