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README.md

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

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