So I looked into Pelion and TrustZone. Got a couple of questions.
I am trying to buy an STM32 discovery kit. Turns out that the STM32L5 series is the one with TrustZone and there is no discovery kit with STM32L5. Is there another way to do it, so that I get the TrustZone and can work with more peripherals?
My plan is to spend a few weeks or a month working on peripherals and then move to the security part. Also, I found this MOOC https://www.coursera.org/learn/iot-connectivity-security?#syllabus . When you say 'security', you mean something in this direction?
Thanks for your time.