From Charger to Radar A Hidden ESP32 System in Plain Sight

From Charger to Radar documents the transformation of an everyday phone charger into a fully functional, hidden radar-based presence detection system.

This short article is not a tutorial in the traditional sense.
It is a design exploration focused on physical integration, simplicity, and real-world constraints.

Inside this free PDF you will find:

• How a standard phone charger can hide a complete ESP32 system
• Why radar-based presence detection enables true stealth designs
• Physical and architectural constraints that shape real devices
• The design philosophy behind minimal, robust embedded systems

This article is intentionally concise.
It shows what is possible — not everything that can be done.

👉 The complete technical book is available here:
Personal Stealth Radar – Possibilities, Lessons, and Practical Design
https://juanfr.gumroad.com/l/hhcft