Freematics Forum

idaka wrote:Please post, if you get it working.
Best Regards

No way... look at my post here http://freematics.com/forum/viewtopic.php?f=11&t=1527

I tried to make the adapter working on my motorcycle (protocol ISO9141-2) by running the simple RPM program provided as example but it doesn't work. I double checked all the wiring and all is perfect. No reading from the ECU, with motor on, off, at high rpm, at low rpm... nothing.

I made another ...

The 5V is not picked from Arduino. It's converted and regulated from the 12V. The 5V is for powering Arduino.
Uh!
So a second question arises: is the adapter somehow protected from voltage spikes coming from the car power?
I read in a lot of post many recommendations in doing so (e.g. via a ...

idaka wrote:Please post, if you get it working.

I will do!

Just got my new Freematics adapter few minutes ago.

As I understand power supply for the adapter (5 Volt) is picked directly from Arduino board, so no problems/questions about it. I would only be sure that the +12V on the OBD connector is completely ignored/unused by the adapter, I'm right?
In ...

Compliments Gambatte, I hope that it will work on my Guzzi Stelvio too.
Somabody knows if it is (somehow) possible to connect a simple (waterproof) 1-digit led display to the OBD adapter? As I see there is only a 2 pin line that can be used...
With arduino I can do it easily by driving every segment ...

Hello to everyone,

I'm a newbie about the OBD-II adapter and I'm trying to get a better idea about it. Even if I'm doing my home-works with the Arduino Starter Kit like a good student, I still feel unsure about the Freematics adapter world.
I have done a lot of googling to have a general overview ...

Hello,

I would like to buy the OBD-II Adapter for Arduino - Model A (UART) and connect it to an Arduino Uno ( http://store.arduino.cc/product/A000073 ) so I would like to be sure to select the right connector/voltage for it.
As I see, while ordering, I can select between 4 connectors ...

Hello,

I agree with you, I will make an attempt.
The ECU is a Magneti Marelli IAW 5AM, mounted on many different motorcycle models of different manufacturers. I will try to find out what protocol it uses (until now I cannot find detailed info about that).

Thanks again!

Hello Stanley,

really thanks for your fast answer.
So, seems that I cannot use the Adapter to read rpm, speed and clutch toggle to detect the gear used by the motorbike...
My project was to drive a (waterproof) gear indicator by using Arduino. A lot of biker consider this accessory really useful ...