increase compatibility to onewire

Changes:

• allow to disable multidrop (thanks to @hrushka) needed for ds2434
• update 701c battery example with working memory-dump (also thanks to @hrushka)
• use github actions to test-compile
  • all examples
  • several Microcontrollers
  • 52 Tests in total to check regressions for pull requests
• allow to skip reboot after search-rom and read-rom -> default OW-feature that was not implemented before
  • fast search rom not supported by: ds2401, ds18b20
  • fast read rom not supported by: ds2401

long overdue maintenance

contributions:

• improve general onewire-behavior and also ds2438 (#97, thanks to @raintonr)
• improve DELL-Charging-Example of ds2502 (#105, thanks to @rikka0w0)
• add ds2430 (#55, thanks to @Siarhei-Hanchuk)
• uncover onewire-flaw in search-rom (thanks to @Siarhei-Hanchuk)
• improve compatibility with SAMD21 (thanks to @sabas1080)

other changes:

• add ds2434 and probably 90% of ds2436
• remove datasheets (now in datasheet-branch) for quicker lib-updates
• add clang-format file
• spell-checking and file-formatting automated with pre-commit
• small bug-fix in ds2408
• fully implement DS2430

v2.2.1

• add CI and test a bunch of controllers
• determine some value_ipl for new controllers (arduino due, zero, esp32, esp8266)
• repair dellcharger example
• update platform-code
• fix some attiny problems

v2.1.2

this is mostly bugfix-release with the following changes:

• more explicit coding
• a lot less compiler warnings on PC, esp, atiny and teensy
• code compiles on PC and should be easily ported to raspberry or other linux-boards
• unittests on PC!
• therefore a lot of bugfixes -> hub.attach, esp8266, bea910, ds18b20
• even more bugfixes for ds18b20-family (degC<=0)
• a little bit simplified interrupt-handling

version 2.0.0

big pile of changes:

• overdrive for onewire, even for atmega328 @ 16 Mhz (arduino uno)
• rework / clean handling of timing-constants with user defined literals.
• extend const-correctness to all onewire-slaves and unify naming of functions across similar devices
• include tests into each device-example and add a lot of get()/set() for internal device-states
• full support for ds2423, ds2450 and ds2503/5/6
• fix and enhance ds2431, ds2433, ds2502, ds2890, probably every slave got a rework
• new timing-method with nanosecond-resolution and without guessing, micros(), delay() or similar arduino-fn
• rework send() and recv(), much more efficient -> less time without interrupts (no missing time with millis())! AND code is more compact (ds2433.cpp shrinks from 176 to 90 LOC)
• offline calibration by watching the bus (examples/debug/calibrate_by_bus_timing)
  • you need to calibrate your architecture if not already done
  • it helps if you have a logic analyzer
• branch for online calibration was abandoned because it took to much resources (DS18B20-Sketch compiled to 8434 & 482 bytes instead of 7026 & 426 bytes now)
• debug-pin shows state by issuing high-states - see explanation in "features"
• teensy3.2 tested: cleaned warnings, fixed port access, cleaned examples
• sensors with emulated memory use memset and static_asserts to secure implementation
• a lot of cleanup
• no return value for hub.search() or item.duty() needed anymore
• returns 1 if error occured in the following functions: recv(buf[]), send(), awaitTimeslot(), sendBit(), checkReset(), showPrescence(), recvAndProzessCmd()

V1.2.0

• optimize OW-Timing
• add and extend ds2408 (thanks to @vytautassurvila), tested with 3 masters
• add resume_cmd 0xA5
• fix/update printError()

bug fix release

• teensy3.2 tested
  • cleaned warnings
  • fixed port access
• cleaned examples
• sensors with emulated memory use memset and static_asserts to secure implementation

version 1.0.0

first stable release. look at readme.md for documentation

rc5

• rename time_t to avoid collision with some boards
• simplify and clean pin-access

this will be v1.0.0 if no one finds any issues till friday,

rc4

• prepare hub for overdrive-mode
• added or extended the ds2431, ds2431, ds2501, ds2502 (also tested)
• lots of cleanups and fixes
• fix ds18s20
• fix check of compilerswitches