ODROID-UPS

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ODROID-UPS

Unread postby odroid » Tue Apr 29, 2014 9:41 pm

ODROID-UPS

Compatible with ODROID-U3 via direct stacking connection.
Compatible with ODROID-U2/X/X2 via DC jack cable connection.

ODROID-UPS is a board of UPS(Uninterruptible Power Supply) that can be plugged on the neat of ODROID-U3 via tiny 8 pin IO connector.
The UPS kit contains the charger circuit, batteries, 5Volt output DCDC converter circuit and 5V/2A power adapter.

With the 3,000mAh battery capacity, ODROID-U3 can run about 1~2 hours of heavy computing without AC power.
If the CPU load is light, it can run 4~5hours.

If you don't need to AC_OK signal, the UPS can works with X/X2/U2.
You can NOT use this UPS with the ODROID-XU series because of limited output current.

Image

Further infromation can be found in this link.
https://www.hardkernel.com/shop/ups3/

PACKAGE INCLUDES
Image
Image
- ODROID-UPS board with 1500mh * 2 battery pack
- 4 x 20mm PCB spacers (Plastic)
- 4 x 11mm PCB spacers (Metal)
- 4 x 10mm PCB spacers (Plastic)
- 5V/2A Power Supply


How to connect the DC Plug cable for ODROID-U2 or X2/X.
Image
Solder it as per the picture.
Red line is +(positive) and Black line is -(negative)


BLOCK DIAGRAM

201404211726593802.jpg

SCHEMATICS : http://dn.odroid.com/UPS/UPS_U3_Schematics.pdf




Example of automatic shutdown
The AC_OK signals are connected to GPIO199/GPIO200 in the 8-pin header socket of ODROID-U3.
When the blackout or sudden disconnection of AC outlet happens, the system will shut down automatically after 1 minute by this script.
This bash script is continuously checking the status of AC status.
Code: Select all
#!/bin/bash

echo 199 > /sys/class/gpio/export
echo 200 > /sys/class/gpio/export
echo in > /sys/class/gpio/gpio199/direction
echo in > /sys/class/gpio/gpio200/direction

get_ac_status() {
    ac1=`cat /sys/class/gpio/gpio199/value`
    ac2=`cat /sys/class/gpio/gpio200/value`
   
    if [ "0$ac1" -eq 1 -o "0$ac2" -eq "1" ]; then
        export ACJACK="off"
    else
        export ACJACK="on"   
    fi
}

while :
do
    get_ac_status

    if [ "$ACJACK" == "off" ]; then
        shutdown -P 1
    fi

    sleep 1;
done


How to assemble with ODROID-U3
1. Unplug the 2 battery connector cables.
2. Assemble the PCB spacers. The metal spacers must be placed between ODROID-U3 and UPS PCB.
3. Align 8 pin header and plug it to the 8 pin socket of ODROID-U3.
4. Plug the 2 battery connector cables. U3 will turn on.
5. Connect DC-Plug of PSU into the DC-Jack on the ODROID-UPS board.


Caution
The DCDC converters have an automatic shutdown/trip function which is activated when the load is very high even very short period.
The battery pack also has very sensitive protection circuit.
So the in-rush current can disconnect all the electrical path.
In this case, you must unplug the battery connectors and DC-plug to reset the protection circuit.
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Re: ODROID-UPS

Unread postby bennyber » Tue Apr 29, 2014 11:28 pm

Hello

I'm building a mobile platform with ODROID-U3.
For me it is important to be able to run a few hours on batteries.
So I need to know when it is still safe to use this UPS attachment
and when I MUST turn off the platform without damaging it.
That Is why I need to know if there is a way to check cells status
using the ODROID-U3 board?

Thanks,
Benny.
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Re: ODROID-UPS

Unread postby mdrjr » Wed Apr 30, 2014 3:29 am

As described on the product page.

Each battery has its own trigger information that you can check using 2 gpio's on ODROID-U3

Also the charger/controller on each bank will shutdown at a certain level to protect the battery
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Re: ODROID-UPS

Unread postby Killer Turtle » Wed Apr 30, 2014 4:59 am

Will it hurt the UPS if both the odroid and the UPS are plugged into power supplies? I ask I have a powersupply with dual 5V/2.1A outputs and connecting the odroid to one and the UPS to the other would allow the UPS to charge at a higher rate while the odroid still gets it's full amp aviailabe.

I'm looking at using this on my truck odroidPC and would like the batteries to be able to charge faster while the truck is on.

ALso the shutdown script, can this be used in android as well? This way i could have it shutdown after say 30 mintues as this would keep the odroid running during quick stops, but also not drain the battery completely.
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Re: ODROID-UPS

Unread postby mdrjr » Wed Apr 30, 2014 5:05 am

Killer Turtle wrote:Will it hurt the UPS if both the odroid and the UPS are plugged into power supplies? I ask I have a powersupply with dual 5V/2.1A outputs and connecting the odroid to one and the UPS to the other would allow the UPS to charge at a higher rate while the odroid still gets it's full amp aviailabe.

I'm looking at using this on my truck odroidPC and would like the batteries to be able to charge faster while the truck is on.

ALso the shutdown script, can this be used in android as well? This way i could have it shutdown after say 30 mintues as this would keep the odroid running during quick stops, but also not drain the battery completely.


Killer,

You dont have to connect both at the same time.
The Power Jack on the UPS can be used to power and charge the batteries at the same time ..

Its not recommended to connect both at the same time. The Two triggers on the UPS will let the board know when batteries are low.

Whenever the battery reach the minimums the UPS will shutdown to protect the batteries.
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Re: ODROID-UPS

Unread postby Killer Turtle » Wed Apr 30, 2014 5:31 am

mdrjr wrote:
Killer,

You dont have to connect both at the same time.
The Power Jack on the UPS can be used to power and charge the batteries at the same time ..

Its not recommended to connect both at the same time. The Two triggers on the UPS will let the board know when batteries are low.

Whenever the battery reach the minimums the UPS will shutdown to protect the batteries.


mdrjr,
Thanks for this info. Should I use a larger than 2.1A powersupply though? Since I know my odroid and accessories are already pushing the 2.1A limit from my power supply. I have the touchscreen, Arduino Uno, BT dongle, Wifi, and wirless keyboard dongle connected. I could possibly build a relay circuit to disconnect the uno, and touchscreen when power is lost, but obviously would preferr to not have to go this route.

Last I understand the batteries will auto shutdown, but then this would require a subsantial amount of charging time which with my set-up would mean having to leave my truck running. This is where having the script shutdown the odroid running android would be ideal. I did order one so I'll do some testing and try to report as much of the outcomes as I can.
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Re: ODROID-UPS

Unread postby mdrjr » Wed Apr 30, 2014 9:52 am

Killer Turtle wrote:
mdrjr wrote:
Killer,

You dont have to connect both at the same time.
The Power Jack on the UPS can be used to power and charge the batteries at the same time ..

Its not recommended to connect both at the same time. The Two triggers on the UPS will let the board know when batteries are low.

Whenever the battery reach the minimums the UPS will shutdown to protect the batteries.


mdrjr,
Thanks for this info. Should I use a larger than 2.1A powersupply though? Since I know my odroid and accessories are already pushing the 2.1A limit from my power supply. I have the touchscreen, Arduino Uno, BT dongle, Wifi, and wirless keyboard dongle connected. I could possibly build a relay circuit to disconnect the uno, and touchscreen when power is lost, but obviously would preferr to not have to go this route.

Last I understand the batteries will auto shutdown, but then this would require a subsantial amount of charging time which with my set-up would mean having to leave my truck running. This is where having the script shutdown the odroid running android would be ideal. I did order one so I'll do some testing and try to report as much of the outcomes as I can.


In your case.. I would do the following.
Make a small circuit with a opto-coupler to known when the ignition is on.
Whenever the ignition is on you do nothing since the ODROID will auto-power up
Whenever the ignition if off you'll trigger the GPIO that you can read. (Like UPS does).
That way you known when your car is off so you send the proper poweroff to the odroid :)
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Re: ODROID-UPS

Unread postby memeka » Wed Apr 30, 2014 11:58 am

* How well is the UPS with unstable power sources?
I'm thinking specifically of soldering (instead of the power cables) cables from a solar panel.

* The test conditions specified Idle current : 250 ~ 300mA @5V
Is this used for the entire system (e.g. including wifi, keyboard, mouse), or just the board? 3000mAh means at 300mA it should result in 10 hours of power (at idle)... yet you got 4 hours

* Are the batteries replaceable? And how would other batteries work with the AC_OK signal -- is there a list of "compatible" batteries?
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Re: ODROID-UPS

Unread postby mdrjr » Wed Apr 30, 2014 2:15 pm

memeka wrote:* How well is the UPS with unstable power sources?
I'm thinking specifically of soldering (instead of the power cables) cables from a solar panel.

* The test conditions specified Idle current : 250 ~ 300mA @5V
Is this used for the entire system (e.g. including wifi, keyboard, mouse), or just the board? 3000mAh means at 300mA it should result in 10 hours of power (at idle)... yet you got 4 hours

* Are the batteries replaceable? And how would other batteries work with the AC_OK signal -- is there a list of "compatible" batteries?


Li-Ion/Li-Poly batteries can't be fully discharged.

Yes, batteries are replaceable. By knowing the battery voltage and keeping it above what li-poly can handle as low.
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Re: ODROID-UPS

Unread postby bennyber » Wed Apr 30, 2014 9:03 pm

Hello,

Is it possible to use 2000mh / 3.7v lipo batteries
from sparkfun.com with this UPS?
https://www.sparkfun.com/products/8483
What I want to know is that if the UPS will still work
or it'll explode or something.
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Re: ODROID-UPS

Unread postby mdrjr » Thu May 01, 2014 12:28 am

bennyber wrote:Hello,

Is it possible to use 2000mh / 3.7v lipo batteries
from sparkfun.com with this UPS?
https://www.sparkfun.com/products/8483
What I want to know is that if the UPS will still work
or it'll explode or something.


Yep.. You can use.. However connector isn't the same and UPS is shipped only with the batteries.
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Re: ODROID-UPS

Unread postby g.gregory » Sat May 10, 2014 9:08 pm

Hi this is good timing. I am wanting to run a Odroid U3 on a multi-rotor for vision application. This should still run fine with a Logitech C920 webcam connected to USB on odroid? Obviously with shorter duration. Or would I be better off making my own 5V regulator from the main flight battery?

Any advice would be much appreciated.
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Re: ODROID-UPS

Unread postby odroid » Sat May 10, 2014 9:15 pm

Can you estimate the total power consumption of the flying camera?
What is the voltage on the motors under rotors?
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Re: ODROID-UPS

Unread postby g.gregory » Sat May 10, 2014 10:48 pm

I actually haven't decided what frame/motors/props I am using for this project yet. I have a F450 but wish am in the process of finding/building a smaller frame more suitable for indoors.

I think I will be running 3S (12.6V) at a rough guess about 15A at hover.

I have these DCDC converters for another project that probably would be suitable:
http://www.ebay.com/itm/Mini-3A-DC-DC-C ... OU:GB:3160
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Re: ODROID-UPS

Unread postby g.gregory » Sun May 11, 2014 9:11 am

I'm unsure exactly how much current the webcam draws but I found someone suggest 240ma.
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Re: ODROID-UPS

Unread postby odroid » Sun May 11, 2014 10:47 am

The max output power of our UPS is about 8~9 Watt ( less than 2A at 5Volt ).
So it seems not to be suitable for the motors for hovering.

Yes, our 720p webcam consumes about 1~1.2 Watt.
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Re: ODROID-UPS

Unread postby g.gregory » Sun May 11, 2014 1:07 pm

@odroid

No I was never suggesting running the motors from the UPS! I was only asking if the UPS could run the Odroid-U3 and the C920 webcam.

I was more concerned about how much power the Odroid uses on its own? And whether it could handle the extra 1.2W from the C920 webcam.

I think I will just use the DCDC converter I mentioned earlier to power Odroid and webcam, and power from the main flight battery.
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Re: ODROID-UPS

Unread postby mdrjr » Sun May 11, 2014 1:10 pm

g.gregory wrote:@odroid

No I was never suggesting running the motors from the UPS! I was only asking if the UPS could run the Odroid-U3 and the C920 webcam.

I was more concerned about how much power the Odroid uses on its own? And whether it could handle the extra 1.2W from the C920 webcam.

I think I will just use the DCDC converter I mentioned earlier to power Odroid and webcam, and power from the main flight battery.


U3 under maximum load will eat 5W.
:)
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Re: ODROID-UPS

Unread postby g.gregory » Sun May 11, 2014 1:57 pm

Awesome thanks!
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Re: ODROID-UPS

Unread postby Cooper » Mon May 12, 2014 9:33 pm

mdrjr wrote:U3 under maximum load will eat 5W.
:)

I think you'll find 10W closer to the mark. When all CPU cores are loaded it draws about 1.4 amps at 5v which is already 7.5w. I can imagine using the GPU cores on the machine would only increase that. Not sure if this scenario implies this though.

Youtube video showing this. CPUBurn loading all 4 cores around 6:15 in the movie where power draw is roughly 1.4A at 5V.
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Re: ODROID-UPS

Unread postby mdrjr » Tue May 13, 2014 3:32 am

burnCortexA9 will pretty much exceed this 5W that I've told before but its a unusual scenario.
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Re: ODROID-UPS

Unread postby Killer Turtle » Tue May 13, 2014 11:27 am

Will the bash script work with script manager in android? I want to test this and see how well it works. If it works I have a 15000 mah UPS that has a bad charging port that I will pull the batteries out of and use with the ups, if I need to.

The only thing I can think of in the script would be changing the shutdown timer to 15 to 30 minutes vs 1 minute.
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Re: ODROID-UPS

Unread postby odroid » Tue May 13, 2014 11:43 am

The AC monitoring script is not working with Android.
We need to develope a monitoring App with adjustable time-out value.
We will consider it.
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Re: ODROID-UPS

Unread postby omegatek » Tue Jun 10, 2014 3:30 am

How can I access the GPIO ports with the UPS connected. Is it an either or situation or can I have access to the GPIO and use the UPS?
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Re: ODROID-UPS

Unread postby mdrjr » Tue Jun 10, 2014 3:38 am

omegatek wrote:How can I access the GPIO ports with the UPS connected. Is it an either or situation or can I have access to the GPIO and use the UPS?


You can solder the provided cable on the UPS and use that cable to power the UPS instead of attaching it on the back of the board
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Re: ODROID-UPS

Unread postby omegatek » Wed Jun 11, 2014 5:46 am

[quote="mdrjr" You can solder the provided cable on the UPS and use that cable to power the UPS instead of attaching it on the back of the board[/quote]

Gotcha, I thought of that, but then wouldn't i loose the ability to run scripts that interact with the UPS?
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Re: ODROID-UPS

Unread postby mdrjr » Wed Jun 11, 2014 6:21 am

omegatek wrote:[quote="mdrjr" You can solder the provided cable on the UPS and use that cable to power the UPS instead of attaching it on the back of the board


Gotcha, I thought of that, but then wouldn't i loose the ability to run scripts that interact with the UPS?[/quote]

Correct :(
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Re: ODROID-UPS

Unread postby bkmz » Thu Jul 03, 2014 4:48 pm

when we can expect to develop a monitoring app?
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Re: ODROID-UPS

Unread postby mdrjr » Thu Jul 03, 2014 4:52 pm

What monitoring values you expect?
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Re: ODROID-UPS

Unread postby bkmz » Thu Jul 03, 2014 4:58 pm

I want in android automatic shutdown after 1-2 minute when i disconnect power cable
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Re: ODROID-UPS

Unread postby mdrjr » Thu Jul 03, 2014 5:00 pm

That's impossible the UPS doesn't have this feature.
The UPS has only two signal triggers that are triggered only when the battery is low.
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Re: ODROID-UPS

Unread postby odroid » Fri Jul 04, 2014 1:12 am

Oh.. no..
UPS reports only the existence of charging power source.
So bkmz idea should be feasible with a simple script.
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Re: ODROID-UPS

Unread postby legramo » Wed Jun 10, 2015 6:01 am

Hi all, i've just receive the Odroid-UPS and i'm wondering if it works properly with Odroid C1. I've found interesting information related with this peripheral and others Odroid models, but not with C1... any feedback will be welcome!

Thanks!
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Re: ODROID-UPS

Unread postby odroid » Wed Jun 10, 2015 11:01 am

If you bought the UPS kit recently, it should be UPS2.

Refer this link first.
http://odroid.com/dokuwiki/doku.php?id=en:odroid-ups2
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Re: ODROID-UPS

Unread postby legramo » Wed Feb 17, 2016 6:15 am

Regarding to the previous link, where UPS2 Board is pretty fine explained, you can find the below sentence:

"When the AC power source becomes available again, the UPS2 will supply power to the ODROID again automatically."

Unfortunately in my case (with Odroid C1), it doesn't work. I mean, everything works fine (shutdown correctly, keeping the Odroid C1 safe from AC power supply problems), but after turning off the Odroid and once the AC power supply is available again, the Odroid doesn't turn on automatically.

Did anyone have the same problem? Thanks.
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Re: ODROID-UPS

Unread postby odroid » Wed Feb 17, 2016 9:55 am

Did connect 3 wires correctly?
Can you tell me your PCB revision/date code of C1 board?
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Re: ODROID-UPS

Unread postby legramo » Wed Feb 17, 2016 7:37 pm

Yes, following your guide http://odroid.com/dokuwiki/doku.php?id=en:odroid-ups2, the 3 wires are good connected.

I have the problem with 2 different Odroid C1, the PCB revision/date codes are the same:
Rev 0.3 20141107

Regarding to the UPS2 board:
Rev 0.2 20141208

I bought all of them at the same time.

Just in conclusion, the problem is as simple and big as: The Odroid C1 doesn't turn automatically once the AC power is back, i have to slide manually the UPS2 board switch SW1 (from On to OFF and to ON finally).

Cheers.
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Re: ODROID-UPS

Unread postby legramo » Wed Feb 17, 2016 9:23 pm

I'd like to remark that UPS2 board is able to turn off properly the Odroid C1 thanks to the script provided in the guide (previous post). No complains about it. But as you could understand, it's annoying that the UPS2 is unable to turn on the Odroid C1 once the AC power is back.
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Re: ODROID-UPS

Unread postby odroid » Thu Feb 18, 2016 9:29 am

It should work on C1/C1+.
Can you read the AC_OK signal level on the command line correctly?
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Re: ODROID-UPS

Unread postby legramo » Thu Feb 18, 2016 9:58 am

This is the signal level of GPIO88 (following your script).

- AC Power ON
pi@raspberrypi /sys/class/gpio $ cat /sys/class/gpio/gpio88/value
1
- AC Power OFF
pi@raspberrypi /sys/class/gpio $ cat /sys/class/gpio/gpio88/value
0
- AC Power ON (again)
pi@raspberrypi /sys/class/gpio $ cat /sys/class/gpio/gpio88/value
1

It means it works fine. I'm still wondering why the Odroid doesn't turn on automatically once the AC power is on again.
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Re: ODROID-UPS

Unread postby legramo » Fri Feb 19, 2016 4:16 am

It seems that the UPS2 Board works fine after following your advices. Thanks!
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