The Easiest and Most Cost-Effective Way to Add Secure IoT & Web to Your Existing Product
You've got a solid embedded product that is battle-tested, reliable, and never meant to connect to the internet. Now there's a request to IoT-enable it. Your first thoughts? TLS handshakes, cloud APIs, OTA updates, embedded web interfaces, certificate management... and a creeping sense of dread.
But what if there was a way to skip all the painful parts?
This article guides you through a clean and straightforward method for adding a secure IoT and embedded web interface to any embedded system without requiring firmware rewriting, grappling with low-level C libraries, or becoming a security expert.
The trick? Add an ESP32 as a secure co-processor. It handles all the connectivity (Wi-Fi or Ethernet), crypto, and cloud communication. Your main CPU continues to perform its task, communicating with the ESP32 over a basic serial (UART) link.
