Example application

uv=require("luv") local e=require("elgato-lib") local b=require("barionet-io") relays= {0,0,0,0} --[[ * * * * helper function: dump_block * * * * * this function will hexdump a block * * * * argument: block to dump * * result: block output to the console * * * * * * * * * * * * * * * * * * * * * * * ]]-- dump_block=function(buf) local prbuf="" for i=1,buf:len() do prbuf=prbuf .. string.format("%02X ",buf:byte(i)) end print(prbuf) end --[[ * * * * main function: keypress * * * * * * * this function will be called when a * * key on the elgato is pressed * * * * argument 1: key number (1..) * * argument 2: 1=pressed 0=released * * * * * * * * * * * * * * * * * * * * * * * ]]-- keypress=function(key,func) print("key " .. key .. " func" .. func) if func==1 then ps="pressed " if key>3 and key<7 then print(" use key") e.button(1,2,"n" .. key-3 .. "c.bmp") if relays[key-3]>0 then relays[key-3]=0 e.button(1,key,"n"..(key-3).."b.bmp") b.setio(key-3,0) else relays[key-3]=1 e.button(1,key,"n"..(key-3).."c.bmp") b.setio(key-3,1) end else if key==1 then relays[1]=0 relays[2]=0 relays[3]=0 b.setio(1,0) b.setio(2,0) b.setio(3,0) e.button(1,2,"paul80.bmp") e.button(1,4,"n1b.bmp") e.button(1,5,"n2b.bmp") e.button(1,6,"n3b.bmp") else if key==3 then relays[1]=1 relays[2]=1 relays[3]=1 b.setio(1,1) b.setio(2,1) b.setio(3,1) e.button(1,2,"paul80c.bmp") e.button(1,4,"n1c.bmp") e.button(1,5,"n2c.bmp") e.button(1,6,"n3c.bmp") end end end else ps="released " end print(ps .. key) end e.init() e.open(1,keypress) -- dump_block(e.serial) -- if uncommented, prints the serial of the device (hexump) -- dump_block(e.firmware) -- IF uncommented, prints the firwmare version of the device (hexdump) e.reset() -- sends a reset command to the elgato e.dimlevel(1,100) -- sets brightness level (100: 100%) e.button(1,1,"paul80.bmp","paul80c.bmp") -- sets image for button 1 (standard and when pressed) e.button(1,3,"paul80c.bmp","paul80.bmp") e.button(1,4,"n1b.bmp") -- if only one given, no change upon press. buttons 4,5,6 -- when pressed permanently change/toggle (see keypress abovve) e.button(1,5,"n2b.bmp") e.button(1,6,"n3b.bmp") b.start(100) -- start barionet io lib b.setio(1,0) b.setio(2,0) b.setio(3,0) -- set all relays to 'off' local timer=uv.new_timer() timer:start(10,10,e.tick) -- elgato lib is called every 10ms to handle keys etc -- all set up here, we can go to the loop. uv.run()