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01-30-2019, 11:53 AM
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#43
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Senior Member
Join Date: May 2017
Posts: 1,299
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Quote:
Originally Posted by engine103
Hi Joe, My Mobley also shuts down at the two hour limit but what I found out at the one hour and 55 minute mark, if I reach over and giggle it for about 5 seconds, it keeps going for another two hours without ever losing connection.
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Please define "giggle" !
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01-30-2019, 11:59 AM
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#44
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Senior Member
Join Date: Aug 2016
Posts: 244
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The time-out interval starts when voltage on the input is approximately 12 volts, meaning that the alternator is not online and thus the engine is turned off. A voltage input above some value (maybe 13 volts-ish) indicates the opposite, that the voltage is higher than battery alone and thus the engine is running... and in that mode it won't time out. So with an external power supply above the cutoff voltage the Mobley would have no way of knowing that it wasn't in a vehicle. The problem is that most 12-volt power supplies out there are, well, 12-volt, and in the range that the Mobley will assume that the engine is not running, and thus subject to the time-out. If you want to run it on home AC power then you can buy a 13.5-volt adapter (Digi-Key has them for under ten bucks), and likewise an RV on shore power would have a battery charger engaged that would keep the voltage above 13.2 or so, even at float voltage. This is perhaps why the Mobile RV video reported that some users are saying that 'it still doesn't time out even with the new software'.. [/QUOTE]
Bill, What is the best amp range for a 13.5 V adapter to output, do you think this one would work? - https://www.amazon.com/RCA-RTS7110B-...c+power+supply
along with this? - https://www.amazon.com/iKKEGOL-Conne...connector&th=1
__________________
History- 1989 Jayco 7ft. slide-in pop-up camper
1998 Winnebago Minnie 22ft Class C Motorhome
2016 Itasca Spirit 25b, 26ft Class C Motorhome
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01-30-2019, 01:45 PM
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#45
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Senior Member
Join Date: May 2017
Posts: 1,299
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Quote:
Originally Posted by W3DKP
It is a simple circuit. I used a 4060 ripple counter to drive a MOSFET across a silicon diode.
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You must have found that 4060 in your junk pile ! Most people would use a 555 !!
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01-31-2019, 04:06 AM
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#46
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Member
Tiffin Owners Club
Join Date: Nov 2016
Posts: 38
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The 4060 is much easier to use since it has a built opin oscillator and 14 stage ripple counter. The oscillator runs about 1Hz and then the ripple counter gives the option of multiple outputs from a few seconds up to 32 minutes. When I get home this weekend I’ll post the circuit and PC board. An 8 minute timer with a 555 would take a very large cap and timing resistor.
__________________
Dave Peters - W3DKP
Former NBC Olympic RF Project Manger
2014 Tiffin Phaeton
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01-31-2019, 07:31 AM
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#47
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Senior Member
Join Date: May 2017
Posts: 1,299
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Quote:
Originally Posted by gladu2
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1) That power adapter certainly has adequate power (the Jameco one has about 1/2 of the power, 0.7A). The question really is, "Is 13.5V high enough to make the Mobley think that the alternator in the car is charging the battery ?" Or to say it another way, "Is the 'engine' running ?"
This is kind of a "crap shoot". In modern vehicles, with a properly idling engine and a properly functioning charging systems. the voltage may be as low as about 12.8V. At high idle, it will could be >14V. Where did Mobley set the threshold to determine "running" and "not running" ? My SWAG would be 12.0V and 14.0V, but those are just guesses.
2) The OBD-II connector looks perfect.
__________________
Retired. 31 year of automotive engineering for one of the Detroit 3, specializing in Powertrain Control Systems.
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01-31-2019, 07:41 AM
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#48
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Senior Member
Monaco Owners Club Oklahoma Boomers Club Retired Fire Service RVer's
Join Date: Aug 2017
Posts: 621
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Quote:
Originally Posted by theoldwizard
Please define "giggle" !
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It's what I do when I wiggle it.
__________________
Jim & Connie, Edmond Oklahoma
2000 Monaco Signature Classic FD/SO 42' / 1969 VW Bug or 2500HD
"My chains are gone, I've been set free"
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01-31-2019, 08:16 AM
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#49
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Senior Member
Monaco Owners Club
Join Date: Aug 2017
Location: Orlando, Florida
Posts: 5,819
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Quote:
Originally Posted by theoldwizard
1) T
This is kind of a "crap shoot". In modern vehicles, with a properly idling engine and a properly functioning charging systems. the voltage may be as low as about 12.8V. At high idle, it will could be >14V. Where did Mobley set the threshold to determine "running" and "not running" ? My SWAG would be 12.0V and 14.0V, but those are just guesses.
2) The OBD-II connector looks perfect.
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A charged battery in a non-running car should be at least 12.6 volts. 12.0 volts is a dead battery.
So the Mobley "should" be considering anything under 12.7 or 12.8 volts to be engine not running. To play it safe it really should be using 13.0V as the cut off voltage for engine running and not running.
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01-31-2019, 12:27 PM
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#50
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Oct 2009
Location: E WA or S TX
Posts: 4,057
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I bought an adaptor that looks like these in 2017. Never had a problem with the ZTE Mobley shutting down.
https://www.ebay.com/itm/Att-ZTE-Mob...8K8:rk:20:pf:0
https://www.ebay.com/itm/AC-Home-Ada...72.m2749.l2649
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04 Horizon QD, 12 Ford Flex, Excalibar, Brakemaster, Winter Texan, RVin! since 1974
Norm, Donna & Tinker Kat(RIP) 01 Z3
Life is a Timed Event, you only get One Go Around!
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01-31-2019, 03:25 PM
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#51
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Senior Member
Join Date: Aug 2016
Posts: 244
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[QUOTE=theoldwizard;4614879]1) That power adapter certainly has adequate power (the Jameco one has about 1/2 of the power, 0.7A). The question really is, "Is 13.5V high enough to make the Mobley think that the alternator in the car is charging the battery ?" Or to say it another way, "Is the 'engine' running ?"
Thank you, we are leaving for Florida in a couple of days and I didn't have time to order the Jameco 14v one and get it here before our trip, I did order the OBDII connector though. I have an infinite timer switch and will try that as a work around during our trip. I usually don't like to be an early adopter, so it might be better to wait anyway before I build a Mobley power adapter until we come home, especially since the Mobley is new. Thanks again.
__________________
History- 1989 Jayco 7ft. slide-in pop-up camper
1998 Winnebago Minnie 22ft Class C Motorhome
2016 Itasca Spirit 25b, 26ft Class C Motorhome
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01-31-2019, 07:26 PM
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#52
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Senior Member
Join Date: Jul 2017
Location: Washington State
Posts: 802
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The car's OBD-II should provide power at all times. I have a OBDLink MX bluetooth, plug it in (no key in ignition) - Power LED is green, BT led blinking (unless the OBDLink MX bluetooth goes to sleep, a feature when engine is not running). Turn Ignition to On (Engine off), same. Start Engine, same.
Connnect to the app, BT LED On:
Engine off - Key at OFF (or No Key) Voltage (in app) ~12.6 (lower if batt level lower)*
Engine off - Key at ON (Not Accessory) Voltage (in app) ~12.6 (lower if batt level lower)*
Start Engine - Voltage (in app) 13.6+
* If I have an external battery charger on the battery, the app will show higher voltage and the changes (if Smart Charger/Multi-Stage)
If the Mobley has an accelerometer, hang in front of a fan (blowing) when stationary.
.
__________________
1995 36' Gulf Stream Scenic Cruiser (Model #8360) on 1995 Spartan EC-2442 Chassis w/Granning Air Ride | Cummins B5.9L 12V 230hp | Allison MD3060 6-Speed WTEC II
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02-01-2019, 06:26 AM
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#53
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Senior Member
Monaco Owners Club
Join Date: Aug 2017
Location: Orlando, Florida
Posts: 5,819
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Quote:
Originally Posted by CoachStreamr
If the Mobley has an accelerometer, hang in front of a fan (blowing) when stationary.
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LOL
The Mobley has no internal telemetrics (unlike the Spark) it only relies on battery voltage to decide if car is running, or stopped/parked with engine off.
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02-01-2019, 01:57 PM
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#54
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Senior Member
Join Date: Jul 2017
Location: Washington State
Posts: 802
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Quote:
Originally Posted by CountryB
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Mike, you have verified that adapter has the proper voltage to get around the mobley issue?
What is the voltage (if you checked it)?
From one of the Amazon Q/A, seems like that person is saying to just orient the Mobley to get around the issue. Though this Q/A is for the adapter you linked, why wouldn't that work with any of those adapters if it's just orienting the Mobley.
Quote:
If you have a device without the latest firmware, placing the device
180 degrees from how it is installed in the car should prevent it from shutting down after two hours
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EDIT: NVM on that answer, it's from 2016.
Just posting here so I can find this Pin#'s info to check my adapter's voltage when I get it:
Quote:
Originally Posted by Isaac-1
The problem is the power adapter you are using, if you have a multimeter check the output voltage between pin 16 and pin 4 or 5 (in 4 and 5 are the 2 middle pins on the top row of the OBDII connector when viewed as the longer row at the top, pin 16 is one of the end pins of the bottom row, bottom left when viewing the Mobley I think, so bottom right on the adapter).
If you measure below about 12.5 - 12.7 VDC VDC under idle load it will time out and shut down, ideally you want to see over 13.2VDC under operation in order to tick the Mobley into thinking it is in a running vehicle. A lot of older 12VDC power adapters really output 13-14VDC under light load so those will work, the problems is these newer ones that put out precisely 12.0VDC.
There is some discussion of this in this thread http://www.irv2.com/forums/f53/20-at...ck-428184.html
Sorry I can't help with store bought power adapters, I build my own
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.
__________________
1995 36' Gulf Stream Scenic Cruiser (Model #8360) on 1995 Spartan EC-2442 Chassis w/Granning Air Ride | Cummins B5.9L 12V 230hp | Allison MD3060 6-Speed WTEC II
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02-01-2019, 03:45 PM
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#55
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Senior Member
Join Date: Jul 2017
Location: Washington State
Posts: 802
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Quote:
Originally Posted by CountryB
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I sent a message this morning asking what the output voltage is to the seller (Zim-5):
Reply
Quote:
Our adapter works just over 13 volts. when we designed it we knew that if the voltage was close to 12 volts it could cause the devise to go to sleep. Geoff
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I would think we want in the mid range or 13.6v but may try this one
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__________________
1995 36' Gulf Stream Scenic Cruiser (Model #8360) on 1995 Spartan EC-2442 Chassis w/Granning Air Ride | Cummins B5.9L 12V 230hp | Allison MD3060 6-Speed WTEC II
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02-01-2019, 04:31 PM
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#56
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Senior Member
Join Date: Jun 2016
Location: SW Louisiana
Posts: 8,924
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I am doing some testing on this using a CC CV bench variable power supply in CV mode today with the new Mobley set for 30 minute time out, results so far are at below 12.5VDC Mobley shuts off at the 30 minute mark, testing at 12.9VDC now, will post back with updates.
__________________
2002 Safari Trek 2830 on P32 Chassis with 8.1L w/ 400 watts solar 420Ah LiFePo4
2017 Jeep Cherokee Overland & 2007 Toyota Yaris TOADs with Even Brake,
Demco Commander tow bar and Blue Ox / Roadmaster base plates
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