tiny_house

This project is intended for the Micro-Grid Testbed Project and may be implemented into The University of California at Santa Cruz's Tiny House Competition.

The subdirectories are as follows:

• src:

  • firmware: (see examples and instructions below)

    • One-Wire Library: adds support for the temperature probe
    • UART-Library : adds support for UART communication with the uC
    • Sensor_Driver : a main driver for the project that includes an FSM for temperature control of a water heater

  • uC_Schematics:

    • several views of a PCB design that will house an AVR Atmega 328P uC that will be used as a controller for the driver

  • app:

    • tiny.html : Basic frontend html page of the web application. Allows for displays of graphs
    • js : Holds javascript source files, including the main date parser and JSON highchart files
      • lib : Contains libraries used for the project, such as timepicker, for the date/time selection
    • css : Styling for the frontend and media queres for responsive design. Also lib/jQuery stylesheets

  • FIRMWARE INSTRUCTIONS AND EXAMPLES

THIS FIRMWARE REPO IS INTENDED TO SERVE AS THE CONTROLLING SOFTWARE FOR A SMART REMOTE CONTROLLED WATER HEATER WITH VARIABLE SETPOINT, OFFSETS, AND MANIPULATEABLE STATES (DISABLE/ENABLE)

• TESTED ON AN ATMEGA2560, XBEE REV 2, AVR-GCC, AND AVR-DUDE USING AN ARDUINO PROGRAMER. CURRENTLY TESTING ON AN AVR ATMEGA 88PA-PU

• USART Library for serial I/O with the an AVR uC

  • formatted print functonality through uprintf()

• Dallas One Wire Library

  • Used for the temperature sensor probe and serial communication and floating point conversions for the sensor GNU Makefile
  • supports builds with multiple source files, specify device, location, ISP model, and sources

DIRECTIONS FOR WIRELESS COMMUNICATIONS TRANSMISSION BAUDRATE = 19200

FRAME DETAILS: - 16-BIT ADDRESS - DEFAULT RECEIVER ADDRESS = 0x0001

CHECK COMMANDS LIST FOR AVAILABLE COMMANDS APPEND THE DELIMITER DEFINED IN XBEE_LIB.h ~ 0x2D - EXAMPLE: - IN ORDER TO CHANGE THE SETPOINT TEMPERATURE TO 5 DEGREES CELSIUS - BYTE 1: 0xBB = CHANGE SETPOINT COMMAND --> COMMAND TO BE SENT - BYTE 2: 0x05 = 5 DEGREES CELSIUS --> ARGUMENT TO FIRST BYTE - BYTE 3: 0x2D = EOP -->'END OF PACKET' MESSAGE

• REPURPOSING INSTRUCTIONS
  • REDEFINE STATES IN main.c
  • REDEFINE THE PRIVATE driver LIBRARY FUNCTIONS FOR CORRECT REAL-WORLD OUTPUT
  • REDFINE STATE DEFINITIONS AND STRUCTURES IN fsm.h
  • REDEFINE SensorResult() IN driver.c/h TO PROVIDE THE CORRECT NEXT STATE