Background

This section will explain the parts we are using and any other history on devices that are similar to ours.

Arduino
The Arduino system will help us program the sound detector and interpreter device. We may use a microphone/amplifier, Arduino Uno Starter Kit, and an LCD Display with buttons. The links for these items are below.

• Microphone/Amplifier
• Arduino Uno Starter Kit
• LCD Display with buttons

History

Some examples of pre-existing hearing impaired alarm clocks are shown below.

• Extremely Loud
• Clock with vibrating wristband
• Bedshaker, Light, and Sound

Fire Standards

This link is of a site of fire device standards: http://www.pottersignal.com/training/manuals/8700055_firetrainingmanual.pdf

This fire alarm training manual contains useful information regarding fire alarm systems and standards. We have to make sure that our device complies with these standards in order to maintain safety to the user and abide by all laws. This document is very useful because it contains fire alarm codes and standards. In addition to this, it also includes a formula we can use to calculate how long the alarm needs to run on it's own battery.

Arudino Forums
These links are to Arduino Formums that have been used to help with the project. 

• Uninterruptible power supply for arduino discussion I don't know if this means that the UNO can handle it on it's own or if we need to buy another shield - UPDATE - just need to plug a rechargeable battery into a wall and the rechargeable battery into the arduino
• Fire Alarm Detection, confirmation that building system wires are inaccessible, illegal, complex, and probably a bad idea anyways I know there's no way to prove it now but I was already considering giving up directly connecting to the building fire alarm signal wire and slapping a microphone next to an audible alarm

Personal Reference Guide (Cheat Sheet) for wiring

• 3-Pin LED:
  1st from flat side; Yellow
  2nd from flat side: Ground
  3rd from flat side: Green
• Microphone:
  OUT/Yellow; Analog output
  GRD/Black: Ground
  VCC/Red: Power input

Personal Reference Guide (Cheat Sheet) for programming in Arduino

• "if" loops need brackets {}
• it is case sensitive pinMode(13, OUTPUT) /=/ PinMode(13, OUTPUT)
• Voice talking into microphone registers > 1250 (on 5v input)
• Blowing into the microphone registers > 1500 (on 5v input)

/* AnalogReadSerial Reads an analog input on pin 0, prints the result to the serial monitor. Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground. This example code is in the public domain. */ // the setup routine runs once when you press reset: void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(9600); pinMode(11,OUTPUT); pinMode(12,OUTPUT); } // the loop routine runs over and over again forever: void loop() { // read the input on analog pin 0: int sensorValue = analogRead(A0); // print out the value you read: if (sensorValue>1500){ digitalWrite(11, HIGH); delay(1); digitalWrite(11,LOW); } if (sensorValue>1000){ digitalWrite(12, HIGH); delay(1); digitalWrite(12,LOW); } Serial.println(sensorValue); delay(1); // delay in between reads for stability }