ME221 / 442: Missing analog inputs?

Connectivity Motorsport Electronics
1

Hello everyone!

I’ve got a Motorsport Electronics 221 PnP ECU in a fairly standard plug and play setup. I am currently trying to get Realdash to actually show some data (Fuel level) from the ECU.

What I’ve done (ECU Side) is send a signal to Analog Input 5:

Input (V) Output (L)
0.046 50
0.074 47
0.110 44
0.163 40
0.224 36
0.274 33
0.311 30
0.347 27
0.388 24
0.468 20
0.559 16
0.646 12
0.730 8
0.805 4
0.857 0

This corresponds to the fuel level of the car in Litres, which I have set as Spare Analog Input 1 (so Analog Input 5 maps to Spare Analog input 1).

I have setup Realdash to connect via USB to my ECU via the standard driver at 230400 baud.

When trying to map my fuel level to this Spare Analog Input 1, I can see that this option is simply not available at all. I am unable to select anything like that from the ECU at all.

How am I supposed to connect the fuel level to the data from the ECU?

If that is of any help, I am also the creator of (the currently very much WIP) ME221 Cross app, so if you need some specific information about what gets sent from the ECU itself, I can provide that.

2

Hey I do understand this is very niche, but I am really on the fence of buying RealDash unless I can figure this out, I am planning on using it ad a dash replacement and this is absolutely my current biggest gripe

3

First, verify that RealDash is receiving your analog input correctly:

  • Go to ‘Settings->Application->Debug->Debug Data View’
  • On ‘Custom’ section, do you see your analog input value, and does it correspond to your fuel level?
4

I would love to do that, and in fact I had even tried by looking older posts, but unless you have Realdash premium It seems you cannot do this.

5

True, Full version or My RealDash subscription is required to use Debug Data View.