How to read Speedo at low speed

[Acetronics2]

I've tried ... but I don't understand what you mean Alain.

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Hi, Darrel

At school, I just learnt to carefully read the Problem terms :

sampling every 100ms

The unit is based on a 16F877a running at 4mhz (I can run it faster if I have to) It also controls the air-conditioning & thermo fans in a climate control kind of way, aswell as having a 20x4 display that gives me info on engine stats and temperatures.

I do know forumers are not so clear in what they look for ... but I do whith what I have under the eyes ...

Regards

Alain