* '''Enable Secondary IO interface''' - To enable use of the Secondary io interface it must be enabled in TunerStudio.
This will open a new window where you can switch Serial3 on and off.
== How to use it ==
There is two things that the Secondary io interface is capable of * 1. Broadcast the current realtime data just as is sent to TunerStudio.
* 2. Read in the Analog data values from 8 remote sensors.
Broadcast realtime data ==
To get Speeduino to send out the realtime data to your device connected on
Serial3 you must send a "A" to it. It will reply with ,
"A" confirming the received instruction (sent as 0x41 in hex),
It will now transmit a single byte in hex ,this is the number of bytes it is about to send .This is currently 0x39 (57 in decimal) .
It will then transmit the realtime data.
As of 02/05/2017 the data list is as follows