# General Usage

## Prerequisites

  You must have avr-gcc and avrdude installed. To install it
  on a debian-based system, please run the following command:

        apt install avr-gcc avrdude

## Build and Flash

  Run this next command in the project root directory to
  build and flash the project using an usbasp programmer:

        make all

  See the Makefile for different settings for your specific
  build environment. To remove all build related files you
  may run this command:

        make clean

## Setting Temperature and Dewpoint Targets

  You can use the script below to send serial commands (you
  may need to run 'git submodule update --init' if the tools
  directory is empty):

        ./opt/tools/serial-send.py <command> <args ...>

  Issue the SET command to update the target settings:

        SET <temperature> <dewpoint>

  Settings are stored in EEPROM and are persistent until a new
  SET command is issued. Keywords are not case-sensitive. Both
  arguments may contain a decimal point followed by a sequence
  of digits.