Recent content by mattallen37

Does the 20X2 have internal pullups that can be enabled for the sda and scl (I2C) lines? I have it working as an I2C slave to the Lego NXT with external pullups, but internal pullups might be better (less stuff on the breadboard). With external pullups, it seems to work with 10k-470k ohm resistors.

I want to make a keyboard interface to a Lego NXT, using a PICAXE 20X2. I have made working I2C code for both the 20X2, and the NXT, so they can "talk" (NXT is the master). I have also made a program for the 20X2 that successfully gets key strokes (I know it is successful, as I have it send...