NEWS

25.09.2022: V2.7.2 Released: improved emubt.exe communication, immobilizer support

05.04.2021: TUTORIALS added

14.02.2021: ALDL droid support implemented !!! check here for details

ABOUT

Below is short description of the board:

This board can replace old EEPROM chip permanently. It doesn't require any external power source. It lets you emulate any Digifant 1 EEPROM binary image, it also can enable data feedback for all non customized EERPOM images, anyway it works for most customized and tuned EERPOM images too but no 100% warranty for that.

It's big advantage is that it transfers all data over Bluetooth:

• uploading and reading currently emulated EEPROM image
• Digifant 1 data feedback

Because it uses Bluetooth and doesn't require external power source it can operate without PC connection to emulate the program. User can upload any binary with some modifications for instance and disconnect PC at any time and the board still emulates the program even if you restart engine. Uploaded image is stored in permanent memory of the board, in three different banks actually, and emulation starts whenever you turn ignition on. It works just like regular EEPROM chip but you can update EEPROM image at any time using Bluetooth interface and additionally the board can enable Digifant data feedback.

Data feedback

So the board lets you receive data from your ECU ! check this YOUTUBE video
At the moment it fully supports TunerPro. User can connect the board to TunerPro and having appropriate adx files receive and decode data from ECU. I provide all the necessary adx, xdf files, also some ready and tested Digifant 1 binaries with the board (go to Download section).

Data feedback benefits

First of all user can get all raw sensors readings which allows to identify problems like faulty lambda sensor, knock sensor, temperature sensors etc. As all Digifant 1 users know, searching for root cause of any problems related with badly running engine is problematic because there is no diagnostic interface for DF1 except poor blink codes. Whith this board DF1 users life is easier.
Another important thing to mention is that user can read some ECU running conditions like if it is in WOT mode or if there was any Knock detonation detected, personally I used this feature as a basis to tune my car. It is also possible to get currently calculated injection time, current timing advance etc. Check adx file for more details.
Another useful feature is hit data tracing with TunerPro. Having the board and all adx, xdf files provided with it user can monitor at which point of given map (FUEL, IGNITION etc) some event occurred, like at which point Knock detonation was detected, then user can modify Ignition map to avoid the Knock, what mixture was at given FUEL map point (RPM vs MAP reading), then user can modify FUEL map accordingly.
It is also possible to connect Wideband Sensor output to DF1 ECU ! so the user can monitor mixture in wide range and modify Fuel maps as required. So now you know at what RPM and Engine Load (MAP) the fuel mixture is.

Emulation benefits

I suppose this is quite obvious: old fashion EEPROM programmer is not needed anymore, which is quite expensive anyway. The biggest benefit is that user can update, or reprogram as you prefer, emulated EEPROM image at any time by connecting PC to the board. User can also use three different banks as a backup or alternative programs to be emulated. Opening ECU, removing EERPOM chip, reprogramming, and putting all back together is time consuming...

Tuning

With use of this board, TunerPro and provided xdf definition files for TunerPro you can edit and adapt your Digifant1 program for your needs. TunerPro definition file (xdf) contains information about most important maps and vectors found in Digifant1 program:

• Ignition map
• Fuel map
• Rev limiter

and a lot more information:

ALDLdroid support

Since 14.02.2021 EMUBT supports ALDL droid. ALDLdroid is Android app to display ECU data, check here for details.

In order to to make it work download emubt.hex file version V2.5.4_1402202 or higher. The second file needed is adx file for ALDLdroid. Once ALDLdroid has been installed on your mobile device put adx file in: Android/data/com.sgiroux.aldldroid/files/adx/