I have tried finding libraries that work. The built in one works with non i2c displays. Other things I have found that work for i2c chips all work on 4 pins. The display I have is a 3 pin display, only one pin for data. Some information here: http://www.picaxe.com/docs/axe133.pdf (also attached). This is a bit general and it shows how to use it with picaxe chips which I know how to do, but can this be used with the arduino at all, or do I need to use a 4 pin i2c display or one without the i2c chip?
axe133.pdf (1010 KB)