TIDA-01519: Fire and Carbon Monoxide Alarm Detector Reference Design with Low BOM Cost

Summary

This reference design is a carbon monoxide (CO) and fire alarm detector reference design which can identify typical alarm sounds, and has the wireless capabilities to alert the user if one is detected. This design is intended for home automation and "smart" environmental sensing. Once a 3kHz or 520Hz signal frequency is identified based on FFT power spectral density analysis, this system determines whether an alarm is occurring which can then be used with sensor to cloud to alert the homeowner in the case of an alarm outside of their detectible hearing range.

Features

3kHz and 520Hz alarm target frequencies
CO and fire alarm detection
Low BOM cost design
Variable microphone gain based on proximity to alarm
Sub-1GHz wireless communication enabled for sensor to cloud configuration

Specifications

Manufacturer	Texas Instruments
Category	Sensor Solutions
Sub-Category	Other Sensing Solutions
Eval Board	Board not Stocked
Purpose	Carbon Monoxide (CO) Smoke Detector Interface
Range	>10 ft (dependent on gain settings)
Sensing Method	Microphone
Voltage In	3.7 VDC 108 ~ 132 VAC
Features	AC/DC Power Supply Antenna On-Board
Design Author	Texas Instruments
Component Count + Extras	127 + 41
Main I.C. Base Part	CC1310 LM2903 TLV2313 TPS27081A UCC28881
Date Created By Author	2017-10
Date Added To Library	2018-07