I have used the electricimp/lcd.class.nut that is in Git Hub. What I need is to create a degree symbol to display in the temperature readings show on my projects LCD. The library has a createCustomChar function, what type of matrix do I use to create the character and how do call to show on the LCD?
The matrix is an array of eight integers whose binary values form a 5x8 bitmap character graphic. The array integers are in row order so the bits 5 to 7 of each integer will be ignored by the LCD’s controller.
More details here: https://electricimp.com/docs/resources/characterlcds/#character-sets
Here’s an example, for a right-pointing triangle: