Really no code?
Really. For simple interaction with a peripheral to “get to blinky”, no code is needed. For example, with an I2C-controlled digital potentiometer, one only needs to poke one or two values into the pot’s registers to set the device to a specific resistance. Likewise, an A/D converter may just need a few operations for set up, and its output data can be fed directly into Edger’s graphing function.