Testing Falcon Four's LiquidTWI library

LiquidTWI_test.ino

#include <LiquidCrystal.h>    //http://github.com/adafruit/LiquidCrystal
#include <LiquidTWI.h>        //http://forums.adafruit.com/viewtopic.php?f=19&t=21586&p=113177
#include <Wire.h>             //http://arduino.cc/en/Reference/Wire
#include <Streaming.h>        //http://arduiniana.org/libraries/streaming/

//Comment one of the following two lines:
//LiquidCrystal lcd(0);         //i2c address 0 (0x20)
LiquidTWI lcd(0);             //i2c address 0 (0x20)

void setup(void)
{
    unsigned long t1, t2, lcdLapse, serialLapse;
    
    Serial.begin(115200);
    lcd.begin(16, 2);    //16 col x 2 rows
    TWBR = 12;         //400kHz I2C SCL
    lcd.clear();
    delay(1000);
    t1 = millis();
    lcd << "1234567890123456";
    lcd.setCursor(0, 1);    //col 0, row 1
    lcd << "abcdefghijklmnop";
    t2 = millis();
    lcdLapse = t2 - t1;
    Serial.println(lcdLapse);
    t1 = millis();    
    Serial.println("1234567890123456");
    Serial.println("abcdefghijklmnop");
    t2 = millis();
    serialLapse = t2 - t1;
    Serial.println(serialLapse);
    delay(1000);
    lcd.clear();
    lcd.setCursor(0, 1);    //col 0, row 1
    lcd.print(lcdLapse);
    lcd.print(" ms  ");
    delay(1000);
}

void loop(void)
{
    unsigned long t1, t2;
    static unsigned long msLast;
    unsigned long ms = millis();

    if (ms - msLast >= 1000) {
        msLast += 1000;    
        t1 = millis();
        lcd.setCursor(0, 0);
        lcd.print(ms);
        t2 = millis();
        lcd.setCursor(0, 1);
        lcd.print(t2 - t1);
        lcd.print(" ms   ");
    }
}