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Update LCD driver to make it more reliable
Delay times at startup extended to make start-up configuration more reliable.
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@ -80,15 +80,15 @@ bool LiquidCrystal_I2C::begin() {
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// we start in 8bit mode, try to set 4 bit mode
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write4bits(0x03);
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delayMicroseconds(4500); // wait min 4.1ms
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delayMicroseconds(5000); // wait min 4.1ms
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// second try
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write4bits(0x03);
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delayMicroseconds(4500); // wait min 4.1ms
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delayMicroseconds(5000); // wait min 4.1ms
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// third go!
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write4bits(0x03);
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delayMicroseconds(150);
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delayMicroseconds(5000);
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// finally, set to 4-bit interface
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write4bits(0x02);
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@ -112,7 +112,7 @@ bool LiquidCrystal_I2C::begin() {
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/********** high level commands, for the user! */
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void LiquidCrystal_I2C::clearNative() {
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command(LCD_CLEARDISPLAY); // clear display, set cursor position to zero
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delayMicroseconds(1600); // this command takes 1.52ms
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delayMicroseconds(2000); // this command takes 1.52ms but allow plenty
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}
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void LiquidCrystal_I2C::setRowNative(byte row) {
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@ -90,7 +90,7 @@ private:
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uint8_t _displayfunction;
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uint8_t _displaycontrol;
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uint8_t _displaymode;
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uint8_t _backlightval;
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uint8_t _backlightval = 0;
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uint8_t outputBuffer[4];
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I2CRB rb;
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