Phase 4 · Specializations

Goal: depth where your job or project needs it. Pick one or two. You do not need all six.

Each specialization is 2 to 4 weeks and assumes Phases 1 to 3.

Module	Pick it if	Typical roles
12. Low power	Anything runs on a battery.	Consumer products, wearables, IoT sensors, medical
13. Robustness (ESD, EMI, EFT)	Your product will be sold, which means it will be certified, which means it will be zapped in a lab.	Consumer, industrial, automotive, appliances
14. Safety and security	A failure could hurt someone or a breach could hurt the company.	Automotive, medical, industrial, anything connected
15. Embedded Linux	The product has a screen, a network stack, or a camera, and a microcontroller is not enough.	Gateways, HMIs, robotics, set-top and infotainment
16. Wireless	It talks to a phone, a cloud, or other devices without a cable.	IoT, consumer, smart home, asset tracking
17. Signals, control, motors	It measures, filters, or moves something physical.	Audio, robotics, drones, appliances, power electronics

Which one first?

If you work on consumer products, do 12 and 13. They are the two that most surprise new engineers, and they are rarely taught in school.