This article describes how to add and setup a Situne Data Acquisition Hub (DAH-280) to you Smart Dash Application.


You need to have a DAH-280 powered by 12V as a minimum, and CAN / Analog input wires hooked up to the correct devices. You should also have an overview of what types of CAN bus protocol you should be using or the make and model of the ECU you are connecting the CAN bus to.

Steps to perform

  1. Connecting a new DAH-280
  2. Configuring the basics of the DAH-280

Connecting a new DAH-280

Start on the main screen of the Smart Dash Application like this:

Touch the "Menu" button

Then touch the "SETUP" menu option

You have now entered the main setup menu, to add a new DAH-280, touch the "Add new device" line

Smart Dash will now start searching for devices, make sure your DAH-280 is powered on, and it should pop up on the the screen as shown above. Here we have two DAH-280 which can be selected, and we select the first one by touching the correct one.

Smart Dash starts interrogating the device to read the current versions and identification of the DAH-280

Next it will write an empty configuration to the device and add it to the configuration in the Smart Dash Application.

After this is complete, Smart Dash will return to the main setup screen.

The device has now been added, and is ready for the next step.

Configuring the basics of the DAH-280

To configure the DAH-280, go to the main setup menu like described in the first stages above and you should see this screen:

Here we will Select "Situne DAH280 (00024)" to configure it.

Below you will see the entire setup menu in one image, it has been put together, on the real device, scroll down to see all options:

The Calibrate accelerometer is not implemented yet, will come in a future version.

CAN-Bus 1 & 2 Configuration

This section applies both to bus 1 and 2, these are identical and are setup the same way.


Termination switch turns on and off the internal 120 ohms active termination of the DAH-280. All CAN-Bus wiring should have a termination in each end of the wiring.

Protocol Selection

Protocol selection is where which protocols the DAH-280 will decode and use.

When touching the "CAN x Protocol Selection" you will enter the screen for protocol selection (The screenshot has been enlarged to show all protocols for the first version of Smart Dash):

Different protocols decodes different data, the details of the protocols will be documented as we get Smart Dash rolled out.

You can select up to 8 simultaneous protocols. Select only the protocols you need, and touch the save button to store the protocol selection settings to the device.


This sets the speed at which the CAN-bus runs. All devices connected to a CAN-bus must have the same speed or the bus will not function properly. Be sure to select the speed you are running on all your devices.

Speed is selected with a roller between 1000 kBit/s, 500 kBit/s, 250 kBit/s and finally 125 kBit/s, and select "Done"

Firmware Upgrade

Here the firmware of the device can be checked and updated, there is an article here which shows you how to upgrade the firmware of your device. Please try and keep your device as up to date as possible.

LEDBar Configuration

The LEDBar can have different functions. The first two implemented is a 3-stage shift light, or a large rev counter.

Shift Light (3 stage)

When the three stage shift light is enabled by touching the button in the configuration menu, the RPMs for the three stages will be added to the bottom of the menu as shown below:

You should then configure the 3 stages as follows. Touch the line for the stage you want to change.

The stage 1 (First 8 LEDs light up green) will light up as soon as the RPM value rises above the rpm set.

The stage 2 (Next 8 LEDs light up red) will light up as soon as the RPM value rises above the rpm set in stage 2.

The stage 3 (Last 8 LEDs light up blue) will light up as soon as the RPM value rises above the rpm set in stage 3.

So in the screenshot above the first 8 LEDs (green color) will light up when the RPM rises above 5500,

next the 8 next LEDs (red color) will light up when the RPM rises above 6000,

and the last 8 LEDs(blue color) will light up when the RPM is above 6500.

RPM value is selected with the spinner shown below

Rev counter

The rev counter option uses the LEDbar to show a revolution counter which is shown as 20 green color, 2 orange color and 2 red color on top. The redline is set the following way:

Enable the rev counter by sliding the rev counter switch:

Touch the "Rev counter red line" line to set the point where you want the first red LED should light up.

This concludes the DAH-280 setup.

Next you should configure the channels as described here.