Adding a display to an embedded project often requires more effort than everything else. Not so with SparkFun’s MicroView, which combines an Arduino-compatible board and OLED display in one small package. SparkFun’s library makes drawing to the display similar to using Processing, with shapes, text, as well as slider and gauge widgets perfect for showing sensor data. It is a little over half an inch tall, which might get bulky on your wrist but would work as a tiny game platform, dollhouse TV, or even in a large necklace. One note: You’ll need to buy a programmer to upload your code.