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  • Grove - Loudness Sensor
    The Grove - Loudness Sensor is designed to detect the loudness of environmental sound. Based on amplifier LM2904 and a built-in microphone, it amplifies and filters the high frequency signal that received from the microphone, and outputs a positive envelop. This will make for Arduino’s signal acquisition. The output value depends on the level of sound input. In order to avoid unnecessary signal disturbances, input signal will go through two times’ filtering inside the module. Lastly, there is a screw potentiometer that enables manual adjustments to the output gain.   Features Grove compatible interface Wide supply voltage range Built-in signal filtering Gain adjustable via screw potentiometer ..
  • Grove - Sound Sensor
    The Sound sensor module is a simple microphone. Based on the power amplifier LM386 and the electret microphone, it can be used to detect the sound strength of the environment. The value of output can be adjusted by the potentiometer.   Features Grove compatible interface Wide supply voltage range: 4V-12V Low quiescent current drain: 4mA 2.0cm x 2.0cm twig module Minimum external parts Applications Ideas Simple microphone Sound detection       For all Grove users (especially beginners), we provide you guidance PDF documents. Please down..
  • Ultrasonic Ranger HC-SR04
    Ultrasonic Ranger HC-SR04  Description The HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats do. It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package. From 2cm to 400 cm or 1” to 13 feet. It operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect). It comes complete with ultrasonic transmitter and receiver module. Features Power Supply :+5V DC Quiescent Current : <2mA Working Current: 15mA Effectual Angle: <15° Ranging Distance : 2cm – 400 cm/1″ – 13ft Resolution : 0.3 cm Measuring Angle: 30 degree Trigger Input Pulse..
  • Ultrasonic Ranger SR05
    Technical Specifications Current: 10 - 40 mA  *short pulses Frequency: 40,000 Hz Height: 2.6 cm  *with connector Length: 4.5 cm Model: HC-SR05 Resolution: 0.2 cm bits Sample Rate: 40 kHz Voltage: 4.5 - 5.5 V Width: 1.7 cm   ..