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#1
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Engine Hour meter with NMEA output?
Almost finished with my microcontroller fuel based management system and
stil have the USART pins free. I am storing the gallons transferred in EEPROM but it would be nice to have a time base to store with them. If I had the engine hours for each transfer I could calculate average fuel consumption and a lot of other interesting tidbits. Anyone know of an hour meter that has digital output? -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#2
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On Wed, 6 Apr 2005 20:23:33 -0400, "Glenn Ashmore"
wrote: Almost finished with my microcontroller fuel based management system and stil have the USART pins free. I am storing the gallons transferred in EEPROM but it would be nice to have a time base to store with them. If I had the engine hours for each transfer I could calculate average fuel consumption and a lot of other interesting tidbits. Anyone know of an hour meter that has digital output? CruzPro has one with nmea output as well as a tach function. http://www.cruzpro.com/rh30.html Not exactly what you are looking for, but you could probably hack it into what you want. __________________________________________________ __________ Glen "Wiley" Wilson usenet1 SPAMNIX at world wide wiley dot com To reply, lose the capitals and do the obvious. Take a look at cpRepeater, my NMEA data integrator, repeater, and logger at http://www.worldwidewiley.com/ |
#3
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The CruzPro RH30 and RH110 digital RPM/engine hours gauge outputs a
proprietary NMEA sentence that contains: RH30/RH110 Digital RPM/Engine hours gauge sample sentence: $PBVE,BEAAADAAABFKBCIIBDAGOOABAAAAADAAAAOIACAAONFM AKCAADAAAAHG Parse as: $PBVE, B E AA ADAA AB FKBC IIBD AGOO AB AAAA AD AAAA OIAC AA ON FMAK CA AD AAAA HG B = Product Code (B= RH30) E = Software Version AA = Spare NMV Byte (Ignore) ADAA = Display Damping AB = Ignore FKBC = Maximum RPM seen from last reset IIBD = High RPM Alarm value AGOO = Clock Speed Calibration # AB = Backlight Level AAAA = Maintenance count-down alarm AD = Engine Minutes AAAA = Engine Hours OIAC = RPM Calibration number AA = Mode AN = Non voltatile memory checksum FMAK = RPM CA = Elapsed Seconds AD = Elapsed Minutes AAAA = Elapsed Hours HG = NMEA Sentence checksum Where A=0, B=1, C=2, ... , O=14, P=15 Decode RPM as: FMAK = 16*F + M + 4096*A + 256*K FMAK = 16*5 + 12 + 4096*0 +256*10 FMAK = 2652 RPM ************************************************** ************ Best Regards, Bert van den Berg CruzPro Ltd. www.cruzpro.com 35 Keeling Road, #A4 Henderson 1008 New Zealand Tel: 64-9-838-3331 Fax: 64-9-838-3332 "Glen "Wiley" Wilson" wrote in message ... On Wed, 6 Apr 2005 20:23:33 -0400, "Glenn Ashmore" wrote: Almost finished with my microcontroller fuel based management system and stil have the USART pins free. I am storing the gallons transferred in EEPROM but it would be nice to have a time base to store with them. If I had the engine hours for each transfer I could calculate average fuel consumption and a lot of other interesting tidbits. Anyone know of an hour meter that has digital output? CruzPro has one with nmea output as well as a tach function. http://www.cruzpro.com/rh30.html Not exactly what you are looking for, but you could probably hack it into what you want. __________________________________________________ __________ Glen "Wiley" Wilson usenet1 SPAMNIX at world wide wiley dot com To reply, lose the capitals and do the obvious. Take a look at cpRepeater, my NMEA data integrator, repeater, and logger at http://www.worldwidewiley.com/ |
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