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19 May 2014, 21:27
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#21
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Member
Country: UK - England
Town: Burwash, East Sussex
Make: Ribcraft 6.4 Pro
Length: 6m +
Engine: Suzuki DF150
Join Date: Jan 2005
Posts: 243
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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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20 May 2014, 04:23
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#22
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Member
Country: Greece
Boat name: Chrysanthos
Make: Scanner
Length: 5m +
Engine: Tohatsu M140A2
Join Date: May 2014
Posts: 53
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Quote:
Originally Posted by Simon666
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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24 May 2014, 04:47
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#23
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Member
Country: Greece
Boat name: Chrysanthos
Make: Scanner
Length: 5m +
Engine: Tohatsu M140A2
Join Date: May 2014
Posts: 53
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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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24 May 2014, 07:22
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#24
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Member
Country: UK - England
Town: Burwash, East Sussex
Make: Ribcraft 6.4 Pro
Length: 6m +
Engine: Suzuki DF150
Join Date: Jan 2005
Posts: 243
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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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24 May 2014, 10:02
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#25
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Member
Country: Greece
Boat name: Chrysanthos
Make: Scanner
Length: 5m +
Engine: Tohatsu M140A2
Join Date: May 2014
Posts: 53
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Yes. For some odd reason it doesnt post <xxxx> at the blog....
Edit: HTML crap...done!
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28 May 2014, 18:28
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#26
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Member
Country: UK - England
Town: Burwash, East Sussex
Make: Ribcraft 6.4 Pro
Length: 6m +
Engine: Suzuki DF150
Join Date: Jan 2005
Posts: 243
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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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28 May 2014, 18:53
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#27
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Member
Country: Greece
Boat name: Chrysanthos
Make: Scanner
Length: 5m +
Engine: Tohatsu M140A2
Join Date: May 2014
Posts: 53
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Quote:
Originally Posted by Simon666
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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28 May 2014, 21:14
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#28
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RIBnet supporter
Country: UK - England
Town: Dinard, Brittany
Boat name: Into the Red
Make: Osprey Vipermax
Length: 7m +
Engine: Evinrude E-tec 250HO
MMSI: 235 076 114
Join Date: Apr 2009
Posts: 1,957
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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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28 May 2014, 23:18
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#29
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Member
Country: USA
Town: California
Make: Avon 5.4m Searider
Length: 5m +
Engine: Yamaha 90
Join Date: Aug 2011
Posts: 1,260
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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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29 May 2014, 03:00
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#30
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Member
Country: Greece
Boat name: Chrysanthos
Make: Scanner
Length: 5m +
Engine: Tohatsu M140A2
Join Date: May 2014
Posts: 53
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Quote:
Originally Posted by ncp
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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I am actually doing this for a friend that has a twin yamaha setup. Stay tuned!
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29 May 2014, 19:56
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#31
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Member
Country: Greece
Boat name: Chrysanthos
Make: Scanner
Length: 5m +
Engine: Tohatsu M140A2
Join Date: May 2014
Posts: 53
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Well updated the blog with the code ! We haven't tested it yet, but it should work!
I might not make it into testing this weekend. I will however the in 2 weeks time!
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29 May 2014, 20:13
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#32
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Member
Country: UK - England
Town: Burwash, East Sussex
Make: Ribcraft 6.4 Pro
Length: 6m +
Engine: Suzuki DF150
Join Date: Jan 2005
Posts: 243
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Quote:
Originally Posted by ncp
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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I take it you have twin diesels?
Could you not fit one flow meter on the common fuel feed line before it splits to each engine?
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29 May 2014, 20:18
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#33
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Member
Country: USA
Town: California
Make: Avon 5.4m Searider
Length: 5m +
Engine: Yamaha 90
Join Date: Aug 2011
Posts: 1,260
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Quote:
Originally Posted by Simon666
I take it you have twin diesels?
Could you not fit one flow meter on the common fuel feed line before it splits to each engine?
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No, single diesel. But, since diesels have a feed line and a return line, you need two flow sensors, one on each line - the2 you subtract one from the other to get actual use.
Question for MaleBuffy - I clicked on one of the link for the sensors, it said accuracy of +/- 10% - what's the accuracy of the one you picked? (I'm wondering how far off I could possibly be because I'd be using two sensor and some math)
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29 May 2014, 20:18
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#34
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Member
Country: UK - England
Town: Burwash, East Sussex
Make: Ribcraft 6.4 Pro
Length: 6m +
Engine: Suzuki DF150
Join Date: Jan 2005
Posts: 243
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Quote:
Originally Posted by MaleBuffy
Well updated the blog with the code ! We haven't tested it yet, but it should work!
I might not make it into testing this weekend. I will however the in 2 weeks time! |
Man! You don't hang about!
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29 May 2014, 20:22
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#35
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Member
Country: UK - England
Town: Burwash, East Sussex
Make: Ribcraft 6.4 Pro
Length: 6m +
Engine: Suzuki DF150
Join Date: Jan 2005
Posts: 243
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Quote:
Originally Posted by ncp
No, single diesel. But, since diesels have a feed line and a return line, you need two flow sensors, one on each line - they you subtract one from the other to get actual use.
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Arhhh Good point. I forget about the return line. Its been a while since i had an oil burner in a boat
I'm sure Malebuffy could do a simple mod to his new two outboard code to subtract the second sensor value instead of adding it. 
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29 May 2014, 21:26
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#36
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Member
Country: Greece
Boat name: Chrysanthos
Make: Scanner
Length: 5m +
Engine: Tohatsu M140A2
Join Date: May 2014
Posts: 53
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Quote:
Originally Posted by ncp
No, single diesel. But, since diesels have a feed line and a return line, you need two flow sensors, one on each line - the2 you subtract one from the other to get actual use.
Question for MaleBuffy - I clicked on one of the link for the sensors, it said accuracy of +/- 10% - what's the accuracy of the one you picked? (I'm wondering how far off I could possibly be because I'd be using two sensor and some math)
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I picked the one with 10% but waiting for anothet that has about 2%.
When I remember correctly, some commercial ones have also a 10% accuracy.
Thats not a big issue because you can use math to calibrate anyways. Its not that the accuracy will change everytime you use it.
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29 May 2014, 21:29
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#37
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Member
Country: Greece
Boat name: Chrysanthos
Make: Scanner
Length: 5m +
Engine: Tohatsu M140A2
Join Date: May 2014
Posts: 53
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Quote:
Originally Posted by Simon666
Arhhh Good point. I forget about the return line. Its been a while since i had an oil burner in a boat
I'm sure Malebuffy could do a simple mod to his new two outboard code to subtract the second sensor value instead of adding it. |
Change the line
BTFuel.println(literspersecond+literspersecond2,3) ; // Sends liters per second to Bluetooth
To
BTFuel.println(literspersecond-literspersecond2,3); // Sends liters per second to Bluetooth
and you are good to go!
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30 May 2014, 00:23
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#38
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Member
Country: UK - England
Town: Burwash, East Sussex
Make: Ribcraft 6.4 Pro
Length: 6m +
Engine: Suzuki DF150
Join Date: Jan 2005
Posts: 243
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Quote:
Originally Posted by MaleBuffy
Change the line
BTFuel.println(literspersecond+literspersecond2,3) ; // Sends liters per second to Bluetooth
To
BTFuel.println(literspersecond-literspersecond2,3); // Sends liters per second to Bluetooth
and you are good to go!
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As easy as that!
Now all of a sudden you have a Diesel solution  Nice work.
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30 May 2014, 07:03
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#39
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Member
Country: UK - England
Town: Salcombe, Devon, UK
Boat name: BananaShark
Make: BananaShark
Length: 10m +
Engine: 2xYanmar 260 diesels
Join Date: Mar 2003
Posts: 4,225
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With modern engines it would be even better if you could access the NMEA (canbus) engine data to use the fuel information from the engine - that's what the current GPS's do and it's amazingly accurate.
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Cookee
Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
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30 May 2014, 07:21
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#40
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Member
Country: Greece
Boat name: Chrysanthos
Make: Scanner
Length: 5m +
Engine: Tohatsu M140A2
Join Date: May 2014
Posts: 53
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Quote:
Originally Posted by Cookee
With modern engines it would be even better if you could access the NMEA (canbus) engine data to use the fuel information from the engine - that's what the current GPS's do and it's amazingly accurate.
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Yes thats true, however its also very expensive.NMEA 2000 is not an open protocol and one has to buy a license in order to use it.
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Into the Red
Ro Row
