duppypro

local gpu = computer.getPCIDevices(findClass("GPU_T1_C"))[1]

local screen = component.proxy(component.findComponent(findClass("Build_Screen_C")))[1]
if not screen then
 screen = computer.getPCIDevices(findClass("ScreenDriver_C"))[1]
end

local station = component.proxy(component.findComponent(findClass("Build_TrainStation_C")))[1]
local trains = station:getTrackGraph():getTrains()
print("Found", #trains, "trains.")

duppypro

// Sample code using MMA8452Q accelerometer
// Electric Imp Device Squirrel code
// License:
// This code is provided under the Creative Commons Attribution-ShareAlike 3.0 License
//    http://creativecommons.org/licenses/by-sa/3.0/us/legalcode
// If you find bugs report to duppypro on github or @duppy #MMA8452Q on twitter
// If you find this useful, send a good word to @duppy #MMA8452Q
// Thanks to @jayrz for finding the first bug.

/////////////////////////////////////////////////