Where the hell did March go?

Another really big month of work, though much of it has been focussed on the hardware side of things so the firmware update this month is a little lighter than normal (Though still a very worthwhile update).

The v0.3.3 board has been finalised and I've sent an order off for a testing batch. If you're brave, the gerbers are included this month. I don't expect problems (And yes, the grounds are connected!) any problems but you never know until you test. There is a dedicated thread for this board (viewtopic.php?f=14&t=452), but in short it improves transient voltage protection slightly whilst also reducing the parts count, simplifying the assembly and reducing the component cost by a whole $1! These changes are all minor, but a good step forward.

The 48-pin Miata board has also been updated to allow the use of the original pins for functions such as O2 and TPS if desired. I've recently been made aware of a variation of this wiring loom for the 1.8L engine and will update the board again shortly to support that as well.

Work continues on the next major board release. I had hoped to have the schematic finalised by the end of March, but I have changed the featureset slightly and will need some more time to work on this.

On the firmware side, the following changes were made:

• For all the Speeduino users in the Bahamas, Belize, the Cayman Islands, Palau and the United States, degrees fahrenheit now works correctly in TunerStudio
• The beta version of TunerStudio 3 is now available (http://www.efianalytics.com/TunerStudio/beta/). This required certain changes to be made in the ini file as the serial system in TS3 is entirely new (and better).
• Launch control hard limiter is now working correctly (Resolves issue where this would not trigger)
• Launch control can now be triggered when signal goes high or goes low (Going low is the normal case, but there are exceptions)
• Indicators added to TunerStudio for launch control and hard/soft rev limits
• When using the default MAP reading method of Cycle Average, the correct value is now shown when the engine is turned off

For those upgrading an existing tune file, please check the following after loading the new ini and firmware:

• The IAT based ignition retard curve (Under Spark Settings).
• Make sure all your temperature settings are correct if you're using fahrenheit

So that's everything I think. As always, remember to reload the ini file in TunerStudio once you've uploaded the new firmware. If you experience any new bugs with this version, please let me know below.