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 permanently replace the old EEPROM chip and does not require an external power source. It allows you to emulate any Digifant 1 EEPROM binary image and enables data feedback for all non-customized EEPROM images. While it works for most customized and tuned EEPROM images, there is no 100% guarantee for compatibility.

Its major advantage is the ability to transfer all data over Bluetooth:

• Uploading and reading the currently emulated EEPROM image
• Receiving Digifant 1 data feedback

Because it uses Bluetooth and does not require an external power source, it can operate without a PC connection to emulate the program. Users can upload any binary (with modifications, if needed) and disconnect the PC at any time. The board will continue to emulate the program even after restarting the engine. The uploaded image is stored in the board's permanent memory across three different banks, and emulation starts automatically whenever the ignition is turned on. It functions just like a regular EEPROM chip, but with the added ability to update the EEPROM image at any time using the Bluetooth interface. Additionally, the board can enable Digifant data feedback.

Data Feedback

This board allows you to receive data from your ECU! Check this YouTube video for more details.
Currently, it fully supports TunerPro. Users can connect the board to TunerPro and, with the appropriate ADX files, receive and decode data from the ECU. All necessary ADX and XDF files, along with some ready and tested Digifant 1 binaries, are provided with the board (see the Download section).

Benefits of Data Feedback

First, users can access raw sensor readings, which help identify issues such as faulty lambda sensors, knock sensors, or temperature sensors. As many Digifant 1 users know, diagnosing engine issues can be challenging due to the lack of a proper diagnostic interface, apart from basic blink codes. This board simplifies troubleshooting for DF1 users.
Additionally, users can monitor ECU conditions, such as whether it is in WOT (Wide Open Throttle) mode or if knock detonation has been detected. Personally, I used this feature as a foundation for tuning my car. It is also possible to view the current injection time, timing advance, and more. Check the ADX file for further details.
Another valuable feature is hit data tracing with TunerPro. With the board and the provided ADX and XDF files, users can track events on specific maps (e.g., FUEL, IGNITION). For instance, users can identify where knock detonation occurred, modify the ignition map to prevent it, or analyze the fuel mixture at specific points (RPM vs. MAP reading) and adjust the fuel map accordingly.
Furthermore, it is possible to connect a wideband sensor output to the DF1 ECU, enabling users to monitor the fuel mixture across a wide range and fine-tune fuel maps as needed. This allows users to determine the fuel mixture at specific RPM and engine load (MAP) conditions.

Emulation Benefits

The benefits of emulation are straightforward: there is no need for an old-fashioned EEPROM programmer, which can be quite expensive. The most significant advantage is the ability to update or reprogram the emulated EEPROM image at any time by connecting a PC to the board. Users can also utilize three different banks as backups or alternative programs for emulation.
Opening the ECU, removing the EEPROM chip, reprogramming it, and reassembling everything is time-consuming. This board eliminates that hassle.

Tuning

With this board, TunerPro, and the provided XDF definition files, users can edit and adapt their Digifant 1 program to suit their needs. The TunerPro definition file (XDF) includes information about the most critical maps and vectors in the Digifant 1 program:

• Ignition map
• Fuel map
• Rev limiter

Additionally, it provides a wealth of other information to assist with tuning.

ALDLdroid Support

Since 14.02.2021, EMUBT has supported ALDLdroid, an Android app for displaying ECU data. Check here for more details.

To enable this feature, download the emubt.hex file version V2.5.4_1402202 or higher. You will also need the ADX file for ALDLdroid. Once ALDLdroid is installed on your mobile device, place the ADX file in: Android/data/com.sgiroux.aldldroid/files/adx/.