Large Ultrasonic (Sonar) Sensor with Horn and UART Output ADA_Buttons Check that the green LED

Check that the green LED is lit on both sides

Voltages between 4 V and 50 V can be applied to VIN

4 x "Little Rubber Feet" to protect your Useless Box from abrasive counter tops

It's ideal for scrolling messages or for simple animations and

It can use an application processor SDIO 2

Large Ultrasonic (Sonar) Sensor with Horn and UART Output ADA_Buttons Check that the green LEDThis impressive looking horn is actually an ultrasonic sensor, ready for panel mount use. Inside is a module that uses high frequency signals to determine distance to a surface, and the horn helps guide the waveform so it can reach farther without spreading too wide. It's elegant looking and is more durable than the 'raw' ultrasonics we sell a lot of, so it would do well in a garage, robot, or installation where you want a durable dust and weather