HC-SR501 is basically a motion detector sensor, which uses infrared waves for detection of an object. It is an automatic control device, also have large sensitivity and high reliability. It is used in auto-sensing control devices, where we need to perform motion detection. HC-SR501 is used in industrial projects and buildings for security purposes.
KEY FEATURES
High Precision MEMS Microphone
Low Power Consumption
Compact and Lightweight Design
Ideal for Voice Recognition & IoT Applications
INMP441 I2S Digital Microphone Module is a high-quality MEMS microphone that can be used to capture the sound with high precision and clarity.It has digital I2S output, low power, and omnidirectional audio pickup and is ideal to ESP32, Arduino, Raspberry Pi, and DIY audio processing applications.
The IOIO (pronounced “yo-yo”) is a board specially designed to work with your Android 1.5 and later device. The board provides robust connectivity to an Android device via a USB or Bluetooth connection and is fully controllable from within an Android application using a simple and intuitive Java API -******no embedded programming or external programmer will ever be needed!
KEY FEATURES3W Class-D Audio output of high quality.Low Noise and Low Distortion Operation.
3.3V–5V Wide Voltage Support
Efficiency and Low power production.
MAX98357 I 2S Digital Audio Amplifier Module provides high fidelity and clean audio with a digital input in the form of I 2S and Class-D output.The module is designed to consume little power and can easily fit into a microcontroller board, which is suitable in Raspberry Pi, Arduino, ESP32 Projects, DIY audio and embedded sound applications.Hear clear audio with very little distortion – ideal with smart speakers, voice assistants and portable audio.