View Full Version : 2/3Wire LiquidCrystal Library

11-18-2012, 01:14 AM
I will post pretty soon an efficent library for drive Hexa LCDs (same commands of LiquidCrystal) but use just 2 or 3 wires. It's based on a small hardware builded around MCP23s08 (for SPI) or MCP2308 (for I2C).
It can be used on Arduino 0.23/1.x IDE and has code optimizations for teensy3.

11-18-2012, 01:27 AM
I use this library with the PCF chip.

Works great for I2C for me, anyway. Does not use the MCP chip, though the adafruit library does.

Hopefully, these are interesting and you may be able to fork or contribute to what is already there instead of a new library...


11-18-2012, 12:45 PM
I'm using a different way that is much faster and library should support even a shift register 595 option. I know those libs but choose to redesign for optimize speed and support I2C as well as hardware SPI or SPI. At list I can include the PCF chip, should useful because his address it's outside range of MCP.

10-24-2013, 09:57 PM