Pololu Digital Distance Sensor 15cm Shipping:1 day You can use these for

You can use these for tap or knock sensors pretty easily by reading the voltage on the output

Actuator Mode: 360 degrees

Each Relay has its own test button to test the connection

so in many applications this pin can optionally be dynamically powered by a microcontroller digital output

Pololu Digital Distance Sensor 15cm Shipping:1 day You can use these forThis small lidar based distance sensor detects the presence of objects within 15 cm (6) . It has a single digital output that drives low when an object is being detected; otherwise, it is high. It works over an input voltage range of 3. 0 V to 5. 5 V, and the 0. 1 pin spacing makes it easy to use with standard solderless breadboards and 0. 1 perfboards. Overview This compact sensor is a great way to quickly detect the presence of nearby objects. As