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[RESOLVED] BOARD POWER ISSUES? try to power the board via CN2 headers

Posted: Sat Oct 08, 2016 8:11 am
by LattePanda
For those of you having power issues I would recommend this.
Make a Barrel Jack adapter and power the board via CN2 headers

The microUSB port can only handle limited current which explains some of the power issues some guys have reported on here. The CN2 pins can handle much more.
Actually, you can use any 5V and GND enabled pins on the board as they are all on the same rail

26 AWG Dupont Wires

DC Barrel Jack Adapter - Female

Take 2 jumpers (Red for VCC and black for GND if you are a purist)
Remove the casing from the male end (or cut off and tin ends with solder if you prefer)
Insert in to Female Jack's screw terminals
Connect female ends to CN2 headers on your LattePanda
Find your favorite barrel connector power supply (I used a 5V@3A one with compatible jack)
Connect and enjoy.
IMG_0604.JPG
IMG_0604.JPG (2.03 MiB) Viewed 16913 times
Using this setup I was able to power my LP, watch all of season 5 of Breaking Bad off a 2.5" external HDD, powered only by the LP's USB. Actually, I was able to connect 2 external hard drives without issue.
And I left it on over night with heavyload running, which it coped with fine. This was with screen output through HDMI.

Inserting an SD card knocked one of the HDDs out, but this is largely down to the current of my power supply. Using a 4A+ power supply will allow you to use all peripherals on your LP and then some.

Hope this can help someone.

Re: BOARD POWER ISSUES? TRY THIS!

Posted: Tue Oct 25, 2016 10:31 pm
by Eric Kazer
Hi,
The CN2 connector is a good idea. I've been trying to get it to run on a cell phone power bank. I had to use a Power Juice endurance AC 12,000 mAh battery with 3.4 amp output. The unit is running on it, but w/4.6 min voltage. this is through a standard USB cable to the jack. I think it can run down to 4.5, but not anything lower. I will try the CN2 method with USB cable, or cables from batt. to CN2. Also with my Raspberry Pi 3 PSU the lattepanda run at 5.1 under load from emulation. This is with High Performance hack running 1.44 to 1.86 GHz. I also have a 4700uf cap to help with surging. The cap is on CN2. Hope to find a better way to get it to run on battery. This is with 7 inch display. Xarcade, 128 GB USB stick, USB Hub, USB Sound Card & WiFi adapter because I clean installed Windows 10 from flash drive. All on USB 2. Runs stable on battery. Voltage concerns me. A little low on battery with USB cable.

I also want to say more like 2.5 amp + on PSU via USB B. Voltage 5.25. PSU gets warm. Other Notes: Also Running Fan and Heatsinks. Runs 50c to 70c while emulating MAME.

Re: BOARD POWER ISSUES? TRY THIS!

Posted: Sat Dec 17, 2016 10:19 pm
by joyce973
Hi, I'm having some power issues with my Lattepanda 2g/32g + Win10 + 7" display/touchscreen: sometimes, randomly the board shuts off.
I have read your advise and ask you if it would be a good solution for me as well.
Thank you
Antonio

Re: BOARD POWER ISSUES? TRY THIS!

Posted: Mon Feb 06, 2017 9:41 am
by LattePanda
joyce973 wrote:Hi, I'm having some power issues with my Lattepanda 2g/32g + Win10 + 7" display/touchscreen: sometimes, randomly the board shuts off.
I have read your advise and ask you if it would be a good solution for me as well.
Thank you
Antonio
yes i would recommend it.

Re: BOARD POWER ISSUES? TRY THIS!

Posted: Sat Feb 11, 2017 9:51 pm
by GhostMaster55
LattePanda wrote:For those of you having power issues I would recommend this.
Make a Barrel Jack adapter and power the board via CN2 headers

The microUSB port can only handle limited current which explains some of the power issues some guys have reported on here. The CN2 pins can handle much more.
Actually, you can use any 5V and GND enabled pins on the board as they are all on the same rail

26 AWG Dupont Wires

DC Barrel Jack Adapter - Female

Take 2 jumpers (Red for VCC and black for GND if you are a purist)
Remove the casing from the male end (or cut off and tin ends with solder if you prefer)
Insert in to Female Jack's screw terminals
Connect female ends to CN2 headers on your LattePanda
Find your favorite barrel connector power supply (I used a 5V@3A one with compatible jack)
Connect and enjoy.
IMG_0604.JPG
Using this setup I was able to power my LP, watch all of season 5 of Breaking Bad off a 2.5" external HDD, powered only by the LP's USB. Actually, I was able to connect 2 external hard drives without issue.
And I left it on over night with heavyload running, which it coped with fine. This was with screen output through HDMI.

Inserting an SD card knocked one of the HDDs out, but this is largely down to the current of my power supply. Using a 4A+ power supply will allow you to use all peripherals on your LP and then some.

Hope this can help someone.
What do the green wires do? I was wondering about that as I'm going to use the CM2 Pins as I'm waiting on the US Starter kit to still ship.

Re: BOARD POWER ISSUES? TRY THIS!

Posted: Mon Feb 13, 2017 7:30 am
by LattePanda
GhostMaster55 wrote:
LattePanda wrote:For those of you having power issues I would recommend this.
Make a Barrel Jack adapter and power the board via CN2 headers

The microUSB port can only handle limited current which explains some of the power issues some guys have reported on here. The CN2 pins can handle much more.
Actually, you can use any 5V and GND enabled pins on the board as they are all on the same rail

26 AWG Dupont Wires

DC Barrel Jack Adapter - Female

Take 2 jumpers (Red for VCC and black for GND if you are a purist)
Remove the casing from the male end (or cut off and tin ends with solder if you prefer)
Insert in to Female Jack's screw terminals
Connect female ends to CN2 headers on your LattePanda
Find your favorite barrel connector power supply (I used a 5V@3A one with compatible jack)
Connect and enjoy.
IMG_0604.JPG
Using this setup I was able to power my LP, watch all of season 5 of Breaking Bad off a 2.5" external HDD, powered only by the LP's USB. Actually, I was able to connect 2 external hard drives without issue.
And I left it on over night with heavyload running, which it coped with fine. This was with screen output through HDMI.

Inserting an SD card knocked one of the HDDs out, but this is largely down to the current of my power supply. Using a 4A+ power supply will allow you to use all peripherals on your LP and then some.

Hope this can help someone.
What do the green wires do? I was wondering about that as I'm going to use the CM2 Pins as I'm waiting on the US Starter kit to still ship.
don't quite understand what green wires you are referring to, could you clarify?

Re: BOARD POWER ISSUES? TRY THIS!

Posted: Fri Feb 17, 2017 5:19 am
by GhostMaster55
LattePanda wrote:
GhostMaster55 wrote:
LattePanda wrote:For those of you having power issues I would recommend this.
Make a Barrel Jack adapter and power the board via CN2 headers

The microUSB port can only handle limited current which explains some of the power issues some guys have reported on here. The CN2 pins can handle much more.
Actually, you can use any 5V and GND enabled pins on the board as they are all on the same rail

26 AWG Dupont Wires

DC Barrel Jack Adapter - Female

Take 2 jumpers (Red for VCC and black for GND if you are a purist)
Remove the casing from the male end (or cut off and tin ends with solder if you prefer)
Insert in to Female Jack's screw terminals
Connect female ends to CN2 headers on your LattePanda
Find your favorite barrel connector power supply (I used a 5V@3A one with compatible jack)
Connect and enjoy.
IMG_0604.JPG
Using this setup I was able to power my LP, watch all of season 5 of Breaking Bad off a 2.5" external HDD, powered only by the LP's USB. Actually, I was able to connect 2 external hard drives without issue.
And I left it on over night with heavyload running, which it coped with fine. This was with screen output through HDMI.

Inserting an SD card knocked one of the HDDs out, but this is largely down to the current of my power supply. Using a 4A+ power supply will allow you to use all peripherals on your LP and then some.

Hope this can help someone.
What do the green wires do? I was wondering about that as I'm going to use the CM2 Pins as I'm waiting on the US Starter kit to still ship.
don't quite understand what green wires you are referring to, could you clarify?
On your picture there are two other wires connected to your CN2 headers, I was wondering if that's for anything necessary, because my panda keeps crashing on Win10 Setup. I've posted my problem in detail here: viewtopic.php?f=10&t=1084&p=4712#p4712.

Re: BOARD POWER ISSUES? TRY THIS!

Posted: Tue Feb 21, 2017 4:13 am
by LattePanda
these are for a fan also on the 5v line. this is unrelated and will not affect performance

Re: BOARD POWER ISSUES? TRY THIS!

Posted: Wed Mar 15, 2017 6:47 pm
by thanos_37
Hello LP Team...

i am using for my robotic project a 12v/ 5AH Lead aced Battery with a 5V, 6A Step-Down Voltage Regulator.. I use 2 jumpers and i connect it to 5v and GND (as the the photo show), but it doesn't turn on... any help? :?:

Re: BOARD POWER ISSUES? TRY THIS!

Posted: Wed Mar 29, 2017 3:33 am
by LattePanda
thanos_37 wrote:Hello LP Team...

i am using for my robotic project a 12v/ 5AH Lead aced Battery with a 5V, 6A Step-Down Voltage Regulator.. I use 2 jumpers and i connect it to 5v and GND (as the the photo show), but it doesn't turn on... any help? :?:
Create a new topic for this please.