ESP32 Email Alerts Made Simple (IoT Notification System with Ultrasonic Sensor)

Ever built something cool and then realized… you still have to keep checking it manually? Yeah, that gets annoying fast. So instead of constantly watching your system, why not make it notify you automatically? That’s exactly what this Send Email Notifications using ESP32 project does using an ESP32 and a simple ultrasonic sensor. What You’re Building This is a smart alert system. The ESP32 continuously measures distance using an ultrasonic sensor. When something comes too close, it instantly sends an email notification to your inbox. No GSM. No complicated email servers. Just WiFi and a clean API-based approach. Why This Approach Is Better A lot of people try sending emails directly from microcontrollers. That usually turns into a headache. Here, the ESP32 doesn’t deal with email protocols at all. It just sends a small JSON request to a cloud API, and the platform handles formatting and delivery. Less complexity, more reliability. Hardware Setup (Super Simple) This is one of those buil