gator:microphone - a module with a microphone for micro:bit

Description

Module with electret microphone, LMV324 amplifier and ADS1015 ADC. The board has large pads dedicated for "crocodile" cables, which facilitate connection to the micro:bit. The module allows you to detect voice, clap, slam doors and other sounds. It can be powered with the voltage ranging from 2.7 to 5.5 V (in the case of connection to the micro: bit, the module must be powered with 3.3 V), and communication is via the I2C interface. Full documentation is available on the product page.

Features

• ADS1015
  • Operating Voltage (VDD): 2.0V-5.5V
  • Operating Temperature: -40°C to 125°C
  • Operation Modes: Single-Shot, Continuous-Conversion (Default), and Duty Cycling
  • Analog Inputs:
    • Measurement Type: Single-Ended (Default)
    • Input Voltage Range: GND to VDD
    • Full Scale Range (FSR): ±.256V to ±6.114V (Default: 2.048V)
  • Resolution:
    • 12-bit (Differential) or 11-bit (Single-Ended)
    • LSB size: 0.125mV - 3mV (Default: 1 mV)
  • Sample Rate: 128 Hz to 3.3 kHz (Default: 1600SPS)
  • Current Consumption (Typical): 150μA-200μA
  • I2C Address: 0x48
• Electret Microphone
  • Operating Voltage: 1.5V (Max 10V)
  • Supply Current: 0.3mA (Max)
  • Directivity: Omnidirectional
  • Frequency Response: 20-16,000Hz
• LMV324 Op-amp
  • Operating Voltage: 2.7V-5.5V
  • Supply Current: ~300-720µA