Interfacing Newhaven Parallel Display with Picaxe


Technical Support
Staff member
I am sure the ST7066 / ST7066U have been mentioned and I recall they are HD44780 compatible.

I vaguely remember someone having some issue with initialisation or its timing ( Added: or was that a KS-something? ) but also others having none and there was nothing I recall as being odd between the two.

Looking at the module datasheet; looks okay to me.


Senior Member
Thanks for the reply Hippy,

I slapped it on a breadboard, programmed a 20M2 with the AXE031 firmware and it came right up with: