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Hello!) We have a touch button on the TTP223 chip for review. In the video, we will analyze the operating principle, functionality and much more. We will figure out how to increase or decrease the sensitivity of the sensor, connect an additional sensor and how to set any of the 4 operating modes. Time codes: 00:00 - Introduction 00:19 - How does autocalibration work? 00:42 - Operating modes 01:11 - Sensitivity adjustment (increase/decrease) 02:17 - Technical part. TTP223 chip 02:27 — Other TTP series chips 02:42 — Connection 02:57 — Arduino compatibility 03:06 — Test 03:34 — Test through an obstacle 03:56 — Decreasing sensitivity 04:04 — Test with reduced sensitivity 04:12 — Test with reduced sensitivity through an obstacle 04:15 — Increasing sensitivity. Connecting an additional sensor 04:28 — Testing the module with an additional sensor 04:34 — Testing the module in all operating modes Subscribe to the channel - / @softprojer