ChangeLog

Changed

Added

Removed

Fixed

Changed

• null terminate all character strings (c-style character arrays)
  • This applies to all characters added to an input buffer from the charFrom{Input/Holding}Register(...) and charFromFrame(...) functions.

Added

• Added debugging of slicing/subsetting arrays

Fixed

• Reordered retry logic

Changed

• Reorganized functions in h file
• Renamed some internal variables in the cpp file.

Added

• Added overload functions {type}FromHoldingRegister(..). These are identical to the {type}FromRegister(..) functions.
• Added support for broadcasts to address 0.

Changed

• Change the timeout for the underlying stream object immediately after frame timeout is changed.

Added

• Added functions to set and get pointers to the stream used for communication
• Added functions to set and get the slave ID.
• Added additional constructors

Changed

• Removed all variable length arrays within functions
• No longer trimming returned Strings

Added

• Implemented a single static command buffer
• Added the define COMMAND_BUFFER_SIZE to control the size of the command buffer.
• Added charToRegister(..) and charToFrame(..) functions, each accepting a pointer to a constant char (const char*).

Fixed

• Fixed return value for sendCommand function.

Changed

• The sendCommand function will now return a value of > 4095 (0x0FFF) if there has been an error. The upper most byte of the uint16_t response to the command is the modbus error code. This makes it much easier to differentiate error responses and no responses.

Added

• Added extra functions specifying "holding" or "input" in the function name.
• Added the ability to change the number of times to retry commands.
• Added the ability to change the command and frame timeouts.
• Added an enum for modbus error codes.
• Added a variable to store the last error code, which can be checked with getLastError() and printed with printLastError().

Fixed

• Fixed calculate of expected return size

Changed

• When dumping the buffer, wait the frame timeout time between characters instead of a set 1ms.

Added

• Added setters and getters for the enable pin, modbus command timeout, and modbus frame timeout.

Fixed

• Corrected comments on input and holding registers. Input registers are the ones that are read only; holding registers are read/write.

Added

• Added functions to read coils
• Added functions to write single and multiple coils
• Added functions to read discrete inputs
• Added functions to read holding and input registers without requiring the command type as input
• Added functions to read coils, discrete inputs, holding, and input registers into a user buffer
• Added code spell configuration

Fixed

• Fixed spelling errors

Changed

• Re-release of 0.7.2 with updates to VERSION and library properties/json

Changed

• Update readWriteRegister.ino example to work with AltSoftSerial

Added

• Add a new getSetAddress.ino example #30

Fixed

• Fix printFrameHex() that was broken with v0.7.0 #29

Changed

• Update examples to apply to more processors
• Implement testing of more processors
• Set the platforms/architectures supported list to "*" (all)

Changed

• Applied clang format to source and examples.
• Moved the scanRegisters example from the utils to the examples folder.
• Updated Arduino library keywords file.
• Changed the debugging functionality to not require a define.

Added

• Added Doxygen documentation comments.
• Created a documentation page using Doxygen.
• Added CI checks with Github actions using reusable workflows.

Removed

• Removed build files and documentation for custom RS-485 boards. This information can now be found in its own repository.

Added

• Added documentation for the wing shield.

Fixed

• Fix by neilh10 for a null pointer in the debugging causing crashes and other "undefined behavior."

Fixed

• Fixed attoseconds for TAI64NA time formats.
• Fixed compiler warnings when compiling with stricter -Wextra flag.

Added

• Added the ability to use the multiple register writing command when only writing to one register.

Changed

• Changed the keywords describing the library.

Added

• Added implementations for TAI64N and TAI64NA

Fixed

• Fixed TAI64 implementation

Changed

• Updated ReadMe
• Updated examples

Fixed

• Fixed issues dealing with unprintable characters in strings

Changed

• Made the response buffer public

Added

• Initial release