add logic to handle bad/unreadable temp probes, document same, minor typo fixes in docs

update code comment to correctly note newer, wider temp range than original implementation

turn off DEBUG by default, add section to docs on calibration

adjust interval beep to be less obnoxious, update copyright date

adjust interval beep to be less obnoxious

make dimmest setting default for both LEDs in all profiles

add pix of finished timer

corrected doc to indicate that pullups are 5V not 3.3V

add notes on how to configure new OS image in TODO

update the documentation and comments to reflect this code is stable

add audible alert for out-of-range temps in compensating profiles; allow bigger inter-measurement temperature jumps from probe as being valid

expand temperature compensation range to 65F to 85F and updates tables accordingly

remove unnecessary compensation lookup table for realtime

consolidate debug output into one location, remove beep() debug output

deglobalize both led objects and rename them as "LED" static properties of their respective display routines ...

deglobalize both led objects and rename them as "LED" static properties of their respective display routines

store remaining global variables as function statics

make current temperature an attribute of the monitor_temp function instead of a global

put main timing loop on its own thread

added startup "chirp" sound, added documentation for sounds ...

typos

display temperature sentinel at startup

collapse profile switch handling into a single thread, further reorg of supporting functions

consolidate temperature monitoring into a single thread, slight reordering of subroutine definitions

initial set of basic docs complete ...

readme formatting

minor doc cleanup

more doc cleanup, update todo

typo and clarification

clarify/cleanup docs in code and md file for 1-wire support

more cleanup and clarification

update note on 1-wire support, fix typo

reorganize readme and add section on operating the timer

add description of temperature sentinel, tidy up todos

comment typo

add README.md

continuously monitor profile switch allowing user to change it while running, update todos with cleanup tasks

fix display dimming based on profile switch setting at boot and timer start

add logic to read the profile selection switch

parameterize beep() to use different sounds for start/stop and interval alarms

added time/temp spreadsheet to repo, trimmed todos

audible alert on start/stop, simplify beep sound