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47 lines
2.6 KiB
Markdown
47 lines
2.6 KiB
Markdown
# README #
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## Introduction ##
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Welcome to the *LCD Library* for **Arduino** and **Chipkit**. It is a derivate of the original LiquidCrystal Library as sourced in the Arduino SDK. It has been developed to be compatible with the current LiquidCrystal library,
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its performance is almost 5 times faster and fully extendable if need be.
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It supports most ``Hitachi HD44780`` based LCDs, or compatible, connected to any project using: 4, 8
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wire parallel interface, I2C IO port expander (native I2C and bit bang) and Shift Regiter.
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It currently supports 4 types of connections:
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* 4 bit parallel LCD interface
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* 8 bit parallel LCD interface
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* I2C IO bus expansion board with the PCF8574* I2C IO expander ASIC such as [I2C LCD extra IO](http://www.electrofunltd.com/2011/10/i2c-lcd-extra-io.html "I2C LCD extra IO").
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* ShiftRegister adaptor board as described [Shift Register project home](http://code.google.com/p/arduinoshiftreglcd/ "Shift Register project home") or in the HW configuration described below, 2 and 3 wire configurations supported.
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* ShiftRegister 3 wire latch adaptor board as described [ShiftRegister 3 Wire Home](http://www.arduino.cc/playground/Code/LCD3wires "ShiftRegister 3 Wire Home")
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* Support for 1 wire shift register [ShiftRegister 1 Wire](http://www.romanblack.com/shift1.htm "ShiftRegister 1 Wire")
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* I2C bus expansion using general purpose IO lines.
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### How do I get set up? ###
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* Please refer to the project's [wiki](https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home "wiki")
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### Contributors
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The library has had the invaluable contribution of:
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* [piccaso](http://www.3guys1laser.com/blog-cheap-arduino-2-wire-lcd-display-0 "picas") - Florian Fida - Flo, thanks for testing and improving the SR library, initial version of the 1 wire interface and speed improvements.
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* B. Perry - *bperrybap@opensource.billsworld.billandterrie.com*, with his thoughtful contribution, speed improvements and development support for the SR2W library.
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* Adrian Piccioli, with his contribution to the i2c GPIO support.
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* [todbot](https://github.com/todbot "todbot") Tod E. Kurt for the [softwarei2cmaster](https://github.com/todbot/SoftI2CMaster "softwarei2cmaster") library.
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#### Contribution guidelines
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* Writing tests
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* Code review
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* Help out with bug fixing
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* Setup a project logo
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* Write new drivers to support more LCDs.
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### Who do I talk to? ###
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* Repo owner or admin
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* For SoftI2CMaster latest versions, updates and support, please refer to [SoftI2CMaster](https://github.com/todbot/SoftI2CMaster "todbot") |