Serial oled display kits picaxe picaxe axe133y this serial oled 16 x 2 kit axe133y is a budget conscious serial oled module that features a 16 x 2 yellow on black alphanumeric display allowing the visual display of user instructions sensor reading etc of picaxe microcontroller projects connection is via a simple 1 wire serial interface the included picaxe 18m2 is fitted on to a small serial interface pcb and is pre programmed with the open source axe133 firmware that allows the microc