MicroCore v1.0.6

Changelog:

• Add PIN macros
  • You can now refer to digital pins as PIN_PB0..5
• Update HalfDuplexSerial
  • MicroCore is now using @nerdralph's picoUART
• Prepare for PlatformIO support

MicroCore v1.0.5

Happy new year!

Changelog:

• Improve millis() implementation
• Improve tone() implementation
• Fix "bug" in shiftOut where the first bit could be something else than expected
• Add posibility to disable micros() from the tools menu
  • millis() is automatically linked in when used, and does not require a menu option
• Add Serial support
  • Software serial implementation with limitations. See README for more details
• Add Serial examples
  • OscillatorCalibration, a sketch for tuning the internal oscillator using the serial monitor
  • ASCIITable, a sketch that prints out the ASCII table in BIN, DEC, and HEX
  • ReadASCIIString, a sketch that reads a string from the serial monitor and prints it back again
  • MenuDemo, a sketch that provides an example for a simple terminal-based menu
• Change LED_BUILTIN from 0 to 2
  • This is to prevent it from interfering with Serial
• Eclipse/Sloeber support removed

MicroCore v1.0.4

Changelog:

• Fix bug where analogReference couldn't be changed
• Small optimizations of the core files
  • binary.h added
  • Interrupt routine for INT0
  • Fixed unnecessary bitwise operations for registers we know the state of when initialized
  • millis function and WDT_ISR converted to assembly
  • shiftOut improved
  • shiftIn improved
• More slow programmers added. Useful when working with 600 kHz or 128kHz clock
• tone() should now be more accurate in terms of frequency generation
• EEPROM library warnings are gone
• Overall better documentation

MicroCore v1.0.3

Changelog:

• Add support for Atmel-ICE and ArduinoISP.org programmers
• Fix issue that caused 0% and 100% PWM duty cycle to fail
• Improved preference of the map() function
• Add ADC prescaler option in core_settings.h
• Improve shiftIn() and shiftOut() speed
• Add missing pin related macros for improved compatibility with existing Arduino libraries
• Add Arduino tone library
• Add tinySPI library to make the ATtiny13 act as an SPI master
• Remove compiler flag menu (seems like most uses use -Os anyways)

MicroCore v1.0.2

It's time for a new release again, MicroCore continues to improve!

Changelog:

• Fix pin mapping for A0, A1, A2 and A3 macros
• Improve micros() performance
• Add digitalPinToInterrupt macro
• Other small "under the hood" changes - the complete changelog can be viewed here.

MicroCore v1.0.1

It's time for a new release again!
This minor release doesn't add any new functionality, but fixes a few issues:

• The delay function has been rewritten to be as accurate and space saving as possible
• Fix LTO error for some older IDE versions
• Add verification preference support to ensure backwards compatibility
• Core cleanup (comments, datatypes, documentation)

MicroCore v1.0.0

It's finally time for the first release of MicroCore! I've been working on this core for a long time, and I hope you enjoy my work. I believe this is the best Arduino ATtiny13 core available, and it's specked with awesome features like:

• Super optimized core files - Everything have been rewritten to fit into this tiny microcontroller
• AVR keywords highlighting - Register names such as DDRB and PORTB get automatically highlighted
• AVR C example files - Want to create really elegant and efficient code? have a look at the AVR C examples on how you can get started!
• Multiple clock frequencies available - select the clock frequency that suits your project the best
• Multiple Brown-out options available
• Accurate timing implemented - without slowing down the microcontroller, like core13 did
• Possible to turn off core feature that's not used, to save space