BusyFlag fix

What's Changed

• BusyFlag fix by @mpeschke in #6
• There might be one additional release in the future to support OLED displays, if it makes sense to include this hardware in an HD44780 repository.

Full Changelog: v1.2.0...v1.3.0

I2C Bus Interface

What's Changed

• I2C by @mpeschke in #4
• Two I2C modules (LCD1602A, v3.0 and LCD2004A, v1.3 tested with crystal oscillators between 12 and 25 MHz).
• Known issue: Busy Flag (no delay) check not working for this release. Check out the next release for a fix.

Full Changelog: v1.1.0...v1.2.0

4bit Bus Interface

What's Changed

• Complete examples to use LCD 1602A with the 4bit bus interface. Both examples for internal and external ROM.
• Next release will contain support for the I2C interface.

Full Changelog: v1.0.0...v1.1.0

AT89S51 with 1602 LCD at 22 MHz

What's Changed

• AT89S51 running at 22 MHz by @mpeschke in #1

New Contributors

• @mpeschke made their first contribution in #1

Full Changelog: v0.1.0...v1.0.0

This release provides a tested (with evidence) setup using a AT89S51 microcontroller interfaced with a 1602 LCD, running at 22 MHz.

1. The other LCDs will be added in the next releases.
2. Hex file is close to AT89S51 flash memory limit (4Kb).
3. Uniform setup for building and deploying (flashing) using a AVRISP (Arduino) and Make.

Original from forked

This is the exact code from the original repo (https://github.com/apachiww/hd44780_for_sdcc_51).