Also fixes EPv2 circuit not pushing data.

Also makes code compile.

code/modules/integrated_electronics/input_output.dm

@@ -321,6 +321,9 @@
 	data_received.write_data_to_pin(message)
 	text_received.write_data_to_pin(text)
 
+	for(var/datum/integrated_io/output/O in outputs)
+		O.push_data()
+
 //This circuit gives information on where the machine is.
 /obj/item/integrated_circuit/input/gps
 	name = "global positioning system"
@@ -379,8 +382,8 @@
 		O.data = msg
 		A.push_data()
 
-	for(var/datum/integrated_io/output/O in outputs)
-		O.push_data()
+	for(var/datum/integrated_io/output/out in outputs)
+		out.push_data()