Inexpensive OLED displays with I2C interfaces abound, but there is a catch: they tend to be stuck on I2C address 0x3C. Some have a jumper or solder pads to select an alternate (usually 0x3D), but they ...
As applications have grown in complexity, serial buses have begun to supplant parallel buses. One of the advantages of a serial bus over parallel bus is the small number of signal lines required. Also ...