IoT-Laundry-Alert

IoT device that sends text message alert when laundry cycle is complete.

Two versions of the program are shown here. The first (Laundry_Alert.c) is a working version using the CC3220SF board and the Temboo/Twilio SMS API for the full IoT text alert functionality. The second (Laundry_Alert.ino) is a basic version using Energia, the TM4C123 board, and the blink_green function in place of send_sms while I'm working out a compatibility issue with the Temboo/Twilio API.

This program is timed to my washer/dryer express cycle. You should adjust MAX_WAIT and VIBRATION_SENSITIVITY as applicable for your own machine.

Installation and Usage Instructions for TM4C123 Version

Set Up Development Environment

• Download Energia IDE: https://energia.nu/download/

• Open Energia. Click Tools, Board, Boards Manager.

• Find Energia Tiva C Boards. Click Install.

• Plug in TI TM4C123 Launchpad to USB Port.

• Open Device Manager (Windows)

• Expand “Ports” (COM & LPT).

  • Make note of the port number for Stellaris Virtual Serial Port (On mine, it is COM6).

• Return to the Energia Window

• Click Tools, Board.

• Select Launchpad (TIVA C) w/ tm4c123 (80mhz).

• Ensure the correct port is selected under Tools/Port (Found in previous step).

Save Source Code File

• Within Energia Folder, save source code file (.ino) in a directory with the same name as the file. For example, my file path is C:…\Documents\Energia\Laundry_Alert\Laundry_Alert.ino

Build the Circuit and Connect to the Launchpad

• Ensure that the Launchpad is not connected to power.
• Insert the SW-420 Vibration Sensor into the breadboard, connect DO to PB_0, VCC to 3.3V, and ground to ground on the breadboard.
• Insert LEDs with 470 Ohm resistors connected to the anodes, and cathodes to ground on the breadboard. Connect red LED to PB_1 and green LED to PB_2.
• Connect ground rail on breadboard to GND on Launchpad.
• Insert USB cable from Launchpad to computer.

Open, Compile, and Flash the Program

• Open the source code file.
• Click on the “verify” check mark in the upper left corner of the Energia window, to compile the code.
• Click on the “upload” arrow next to the check mark to flash the code to the Launchpad.

Run the Program

• After flashing the program to the board, it is now running on your Launchpad.
• Remove USB from the COM Port on the computer.
• When ready to use, simply place the Launchpad and circuit on top of the washer or dryer and connect to the 5V portable USB battery pack.
• The program is now running and will flash green to signify the end of the wash/dry cycle.

Installation_and_Usage_Instructions_git.pdf