Files changed (1)
Also in the download section you can find the [[I2CIO|I2CIO driver library]] for the PCF8574* I2C IO expander ASIC. The library has been tested with the [[http://www.electrofunltd.com/p/i2c-lcd-extra-io.html|**LCDI2CextraIO**]] board.
+Each supported and tested library class has gone through a performance benchmark and it is compared with respect to the original LiquidCrystal library.
+**Benchmark 2**: write a bar graph using the entire LCD to draw the bars. This has 5 writes per LCD position.