GPS and Fishfinder data on a boat.

Hugh

I've just finished this, which taps into the NMEA data from a GPS and from a Fishfinder on my boat (it also does fuel flow but my fuel flow sensor gave up the ghost over the winter). The data is logged to an SD card and displayed on the LCD. It snapshots the fastest speed seen, etc.,:

I am hoping that the code is reasonably self-explanatory. I have some data using the GPS/FF in simulator mode, but the weather has been too poor to get on the water. :blank:

Its been through a few iterations which is why the wiring and soldering looks rubbish!

WBA Consulting

I only had a chance to take a brief look at your code across my lunchtime, but I must say that your code is wonderfully documented. I love your use of the Propeller Tool's character chart and how you map out things like the NMEA string. I will be checking out your code more, but I just wanted to compliment you on it.

Hugh

Thank you Andrew.

Its probably not very good code from a technical point of view. I always try to consider the next chap who might have to deal with my code - it might be me!

dmagnus

Good Stuff!!! I plan to use this for my boat. Mainly the fuel flow but I'll probably hook up the spare GPS, too. Don't have a fishfinder. I'll also have to convert to Gallons, etc. but that's no big deal. I have a twin engine cruiser with big V-8's so I really need to know what my fuel usage is!

Hugh

I thought that if the comments in my code are going to be read, I'd better sort some typos. Corrected version attached.

FFGPS38_Devantech - Archive [Date 2013.06.07 Time 14.59].zip

Publison

Hugh wrote: »

I thought that if the comments in my code are going to be read, I'd better sort some typos. Corrected version attached.

FFGPS38_Devantech - Archive [Date 2013.06.07 Time 14.59].zip

Hugh,

I have to say +1 to Andrew's comments. I haven't seen code commented that well in a long time.

Very well done!

Hugh

I've written-up a bit more here

WBA Consulting

I was just about to say that with the excellent write-up this needs to be a candidate for Project of the Week, but it's already a winner! Congrats on making POTW!

Excellent write-up as well. Will be a reference for me for a few projects on my to-do list.

Publison

WBA Consulting wrote: »

I was just about to say that with the excellent write-up this needs to be a candidate for Project of the Week, but it's already a winner! Congrats on making POTW!

Excellent write-up as well. Will be a reference for me for a few projects on my to-do list.

I was going to send congrats also, but you beat me to it!

Hugh

Wa-hey! That's awesome!

Hugh

A couple of tweaks, plus a second spin file for a second prop recording acceleration data to a different SD card, synched to the data from the first.

FFGPS60_serial - PROP 1.zip
ACC11_serial - Prop 2.zip

(Sorry, I archived with the Prop tool!)

Publison

Hugh wrote: »

A couple of tweaks, plus a second spin file for a second prop recording acceleration data to a different SD card, synched to the data from the first.

FFGPS60_serial - PROP 1.zip
ACC11_serial - Prop 2.zip

(Sorry, I archived with the Prop tool!)

Very nice progress Hugh!

BTW, it's best to archive with the Prop Tool. We all know how to unzip.

Hugh

It lost a few data points today due to the sea being a bit lumpy and the DB9 connectors falling out (:frown:) but here is some example data. The plan is to get it into KML eventually (outside the prop).

Depth of water under the boat:

Position (Latitude and Longitude):

Speed:

Vertical Acceleration:
About 1/3 in I throttle back and the vertical heave is then just due to the waves. Not yet converted to 'g'

True Heading:

Hugh

With a bit of code-bodging in Excel...

Deeper = red



Losing the LCD and using an M44D40+ and PowerTwig from WBA Consulting has allowed me to get into a smaller/neater box, with a 9V battery powering it.

(If I need to, I will make another module with the LCD, connected to this one and with its own supply).