Add examples for a few devices

lc_examples/button.lua

@@ -0,0 +1,18 @@
+--Digilines Button Example
+
+--Connect a button on the channel "button" with any message.
+--When the button is pressed, pin A will toggle.
+--If manual light control is selected on the button, the button light will also be flashing.
+--If the button has a message set, it will be sent to an LCD on channel "lcd"
+
+if event.type == "program" then
+	mem.flash = false
+	interrupt(0,"flash")
+elseif event.iid == "flash" then
+	mem.flash = not mem.flash
+	digiline_send("button","light_"..(mem.flash and "on" or "off"))
+	interrupt(1,"flash",true)
+elseif event.channel == "button" then
+	port.a = not port.a
+	digiline_send("lcd",event.msg)
+end