功能

• Description
• The SparkFun gator:microphone is a micro:bit Accessory Board that integrates an electret microphone into SparkFun's gator:bit series of gator-clippable accessories, enabling it to be easily interfaced with the micro:bit or other microcontrollers! It provides a binary indication of the presence of sound and an analog representation of its amplitude.
• The gator:microphone consists of four pads for power and data. There is also a switch on the board to select different audio amplification levels. Additionally, it includes an LMV324 operational amplifier(op-amp)for processing the audio signals from the microphone. The specified operating voltage for the VEML6070 is between 2.7V-5.5V. For use with the gator:bit(v2)and micro:bit, you should provide 3.3V through the 3V3 and GND pads to keep the logic levels consistent.
• The micro:bit is a pocket-sized computer that lets you get creative with digital technology. Between the micro:bit and our shield-like bit boards you can do almost anything while coding, customizing and controlling your micro:bit from almost anywhere! You can use your micro:bit for all sorts of unique creations, from robots to musical instruments and more. At half the size of a credit card, this versatile board has vast potential!
• Get Started with the SparkFun gator:microphone Hookup Guide
• Features
• gator:bit Compatible
• 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