LCD Controller

A node module to control the Grove-LCD RGB Backlight Panel

API

Methods

setText(msg, pos, clear)

• msg (string)
  • String to write to display
• pos ({x: number, y: number})
  • Position to start writing string
• clear (boolean)
  • Whether or not the display should be cleared before writing string

clearText()

Clears all text on display

getColor()

Returns display backlight color

setColor(red, green, blue)

• red (number)
• green (number)
• blue (number)

Tweens display backlight color from current color to new color

brighten()

Tweens display backlight brightness from current brightness to 100% over a period of time

dim()

Tweens display backlight brightness from current brightness to 0% over a period of time

getBrightness()

Returns display backlight brightness

setBrightness(brightness)

• brightness (number)

Sets display backlight brightness

Limitations

• The LCD panel becomes unstable when receiving messages faster than 40 times a second. Because of this, I've implemented a queue that will ensure messages are only sent up to 40 times per second. If you fill it with more than 40 commands in a second, then your commands will potentially be delayed. Remember, any backlight commands using tweens will likely send more than 1 command!