Welcome to Vintage Cup Sleeves! Welcome to a forum built around vintage cup sleeves and the small details that make them worth keeping. Feel free to ask about cafe themes, printing variations, scanning setups, or binder storage, and share what you have noticed in your own collecting.

This $6 Sensor Does Insane Things mmWave Radar + RDK X5 + ESP32-C3

  • Thread starter Thread starter Engr. Shahzada Fahad
  • Start date Start date
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Engr. Shahzada Fahad

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Last Updated on September 29, 2026 by Engr. Shahzada Fahad Description: Every single one of these just happened because a 6-dollar radar sensor knew I was there. And I am about to show you the easiest way to build this yourself no complicated code. This is the RD-03D mmWave radar, and it can detect people. …
 
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This site is a discussion space for vintage cup sleeve collectors and anyone curious about cafe paper goods. Threads focus on documentation, preservation, and collection scope rather than sales or appraisals.

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