jm_LiquidCrystal_I2C Arduino Library

My enhanced fm_LiquidCrystal_I2C Arduino Library

2018-05-14: v1.0.2 - Solve OUTPUT mistake in fm_I2CIO.cpp.
2018-04-19: v1.0.1 - Solve conflict with NewLiquidCrystal_1.3.5.
2017-05-03: v1.0.0 - Initial commit.

jm_LiquidCrystal_I2C is a fork of fm_LiquidCrystal_I2C.h written by F. Malpartida.

My version is dedicated to the common blue 4x20 lines LCD display I2C interfaced (address 0x3F). It is driven by jm_Scheduler and jm_Wire. So all delay() functions have been replaced to allow real multitasking process.

See jm_LiquidCrystal_I2C_demo example.

Example

#include <jm_Scheduler.h>
#include <jm_Wire.h>
extern uint16_t twi_readFrom_timeout;
extern uint16_t twi_writeTo_timeout;
extern bool twi_readFrom_wait;
extern bool twi_writeTo_wait;
#include <jm_LiquidCrystal_I2C.h>

// your code...

void setup(void)
{
    Wire.begin();
    twi_readFrom_wait = false; // Suppress twi_readFrom() waiting loop
    twi_writeTo_wait = false; // Suppress twi_writeTo() waiting loop

    lcd.begin();
    while (lcd._i2cio.yield_request()) jm_Scheduler::yield();
}

void loop(void)
{
    jm_Scheduler::yield();
}