Picaxe smd x1x2m2 chips picaxe axe010x2 sm the picaxe 28x2 is a 28 pin flash microcontroller chip that has a unique pre programmed picaxe bootstrap code this gives a device that may be reprogrammed typically 100 000 times without the need for an expensive and complicated programmer picaxe is programmed using a simple basic language or via the intuitive logicator flowcharting software that especially enables younger students and hobbyists to start generating programs quickly and easily