Express design, or how I made a smart brake light two hours before the trip
Summary
The article describes a quick DIY project to build a smart brake light before a trip. It uses an ESP32-C3-Zero, an MPU6050 sensor, a MOSFET, and 3D-printed parts to detect motion and control LED brightness. The author explains the wiring, filtering logic, and firmware used to make the light react to Y-axis movement. The piece also mentions FreeCAD and 3D printing for the enclosure and mounting parts. Overall, it is a hands-on maker build rather than a SaaS or ISV business update.
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