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The MAX9814 Microphone Amplifier Module with Auto-Gain Control is an advanced audio sensor designed for Arduino projects. It features an integrated electret microphone and automatic gain control, providing consistent audio signal levels across varying sound intensities. This module is perfect for applications involving sound detection, voice activation, and audio signal processing.
Combines pulse oximeter and heart rate sensor in one module
Based on the MAX30100 integrated circuit
Communicates via I2C interface (address: 0x57)
Ultra-low power consumption – ideal for wearable and battery-powered applications
Includes red & infrared LEDs, photodetector, and ambient light rejection circuitry
Compatible with Arduino, ESP32, STM32, Raspberry Pi, and other platforms
Compact size – easy to embed in health monitoring devices
Micro HDMI (Type D) Male to HDMI (Type A) Male
2 meters in length – ideal for desktop or lab setups
Supports 1080p and 4K HD video output
Gold-plated connectors ensure high-quality signal transfer
Durable and flexible cable with strain relief ends
Plug-and-play design – no drivers or setup required
Provides both audio and video transmission
Compact Form Factor (20 × 6 mm) with a short actuator lever
Robust Contact Rating: Handles up to 3 A at 250 VAC / 30 VDC
Snap-Action Mechanism: Offers fast, reliable switching
Durable Build: Long lifespan with metal internal contacts
Easy Mounting: Ideal for mechanical end-stops, safety gates, and automation systems
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