Release 2.2

Changes in Release 2.2:

• Improve morse code compliance
• Use both LEDs when setting the battery warning voltage limit
• Reduce firmware size

The .elf file contains the firmware image and the fuse settings for ATtiny13A.
However, the .elf file should also work for the ATtiny13 without problems.

Note: You need to have Python 3 installed for running eeptool.py.

Release 2.1

Changes in Release 2.1:

• Improved battery measurement
• Rewrite eeptool in Python and improved usability
• Updated Circuit.pdf
• Reduced firmware size
• Code cleanup

The .elf file contains the firmware image and the fuse settings for ATtiny13A.
However, the .elf file should also work for the ATtiny13 without problems.

Note: You need to have Python 3 installed for running eeptool.py.

Release 2.0

Changes in Release 2.0:

• Using standard string convention and ascii encoding for storing data strings
• Fixed a bug causing the eeptool to malfunction when working with certain files
• Reworked eeptool for easier operation

The .elf file contains the firmware image and the fuse settings for ATtiny13A.
However, the .elf file should also work for the ATtiny13 without problems.

Note: The eeptool binarys included in this release do only work under 64 bit Linux and Windows (.exe).

Release 1.5

Changes in Release 1.5:

• improved README's
• Improved accuracy of the morse code timings
• improved coding style
• slightly improved eeptool

The .elf file contains the firmware image and the fuse settings for ATtiny13A.
However, the .elf file should also work for the ATtiny13 without problems.

Note: eeptool binary only works under linux

Release 1.4

Changes in Release 1.4:

• improved README's
• Deadlock prevention

The .elf file contains the firmware image and the fuse settings for ATtiny13A.
However, the .elf file should also work for the ATtiny13 without problems.

Note: eeptool binary only works under linux

Release 1.3

Changes in Release 1.3:

• significantly improved README's
• improved tolerance against bouncing switches

The .elf file contains the firmware image and the fuse settings for ATtiny13A.
However, the .elf file should also work for the ATtiny13 without problems.

Note: eeptool binary only works under linux

Release 1.2

With this Release, the Firmware is available under the GPL v3 License.
Changes in Release 1.2:
- Improved README's
- minor optimizations

The .elf file contains the firmware image and the fuse settings for Attiny13a.
However, the .elf file should also work for the Attiny13 without problems.

Note: eeptool binary only works under linux

Release 1.1

Bugfixes in Release 1.1:
- morse sequence will be displayed correctly after a calibration
- improved README

The .elf file contains the firmware image and the fuse settings for attiny13a.

Note: eeptool binary only works under linux

Release 1.0

The tests on real hardware were successful. This means that this is the first stable release.
The .elf file contains the firmware image and the fuse settings for attiny13a.

Alpha Release 2

Significant changes in functionality since Alpha Release and integration of a tool for creating appropriate EEPROM files (eeptool). However, testing on real Hardware (Attiny13A) is still necessary.