This knock sensor detects impacts and outputs a high-level signal when an impact occurs. These modules are also referred to as knock switches and can be used for touch detection, etc. In contrast to the ARD SEN2 KNOCK , this module contains an additional LED that makes changes in the output signal recognisable. Technical data https://elecena.pl/product/19541614/se024-arduino-knock-sensor-led-indicator 2021-09-28 https://elecena.pl/product/19541614/se024-arduino-knock-sensor-led-indicator 2023-06-28 https://elecena.pl/product/19541614/se024-arduino-knock-sensor-led-indicator 2024-02-16 https://elecena.pl/product/19541614/se024-arduino-knock-sensor-led-indicator 2025-02-08