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Old 19 May 2014, 17:27   #21
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Got the Arduino programmed & working and talking via bluetooth to your apps running on my phone.
Its sending data when i ground pin 2 so i know its working

Now i just need my flow sensor to hurry and arrive.
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Old 20 May 2014, 00:23   #22
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Got the Arduino programmed & working and talking via bluetooth to your apps running on my phone.
Its sending data when i ground pin 2 so i know its working

Now i just need my flow sensor to hurry and arrive.
Congratulations!!!

Now make sure you use the correct Pulses per liter for the sensor.
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Old 24 May 2014, 00:47   #23
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I have updated the Arduino sketch in order to save energy. So the system is awake only if fuel passed through the sensor. That will help a little for when having a 9V battery connected, but also when the system is connected to the boat baterry in order to prevent battery draining.

Check the code at my blog
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Old 24 May 2014, 03:22   #24
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Thanks I will try that.
I received the flow sensors yesterday but not sure when I can try it on my boat as its stored 90 miles away!

Just looking at the code... has it missed out the jeelib and softwareserial file names after the #include commands?
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Old 24 May 2014, 06:02   #25
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Yes. For some odd reason it doesnt post <xxxx> at the blog....

Edit: HTML crap...done!
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Old 28 May 2014, 14:28   #26
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Just a thought for a future additon....

Could you feed the engine RPM signal into the Arduino then transmit this via Bluetooth to the app?

The app could then calculate the most efficient RPM/Speed for your boat, and maybe plot a graph?

No idea how much work is involved in this, i'm just thinking aloud!
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Old 28 May 2014, 14:53   #27
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Just a thought for a future additon....

Could you feed the engine RPM signal into the Arduino then transmit this via Bluetooth to the app?

The app could then calculate the most efficient RPM/Speed for your boat, and maybe plot a graph?

No idea how much work is involved in this, i'm just thinking aloud!
Not a bad idea.

My Tohatsu has a multifunction gauge, and RPM is digitally displayed. So I think It might be possible.

I am going to give it a try, since I also have the service manual that might help quite a lot.

Since I have the same problem with you, being about 160km away from the boat, it might take some time.
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Old 28 May 2014, 17:14   #28
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Shame outboards don't just have an obd2 port! I have a little bluetooth plug with the torque app on my phone and it is very useful indeed!

Neat little project this is
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Old 28 May 2014, 19:18   #29
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Does someone want to write the code for my diesel using two flow sensors??? I can't seem to stomach spending $800 for a Floscan set-up!
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Old 28 May 2014, 23:00   #30
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Does someone want to write the code for my diesel using two flow sensors??? I can't seem to stomach spending $800 for a Floscan set-up!
I am actually doing this for a friend that has a twin yamaha setup. Stay tuned!
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