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- You Reply:
ccs_hello wrote: ↑Sun Sep 22, 2019 3:00 pm Just like to mention some "known to be better" (at least better than designed for LED lamps) power adapters for the DC_in 4-pin power feed.
In our company we use Mean Well power supplies exclusively.
- Kensington k38047 (set to "12V mode"), 12V 3A, about $15 or less
- OEM HP F1044B (12V 3.3A) less than $15
- If you'd like to try 15V power supply, Toshiba PA2444U is cheap (less than $10 and it's 15V 4A.)
<-- note I only picked the power adapter designed for laptop and OEM/genuine preferred
These do not include the PH2.0 4-pin plug. DIY is needed.
At my home I use a power supply of type SGA60E12-P1J with 12V 5A for the Alpha.
A SGA40E12-P1J would be enough too, but we didn't have it in stock
... and yes, also DIY pin plug is needed. - You Reply: Very nice !
- You Reply: Topic moved
- You Reply:
Eli99k wrote: ↑Fri Jul 19, 2019 9:03 pm I was thinking about collecting it from the serial com already established between the processor and the Arduino. I to use windows(or linux cause I don't want windows crashing) to accept the data and upload it. I just don't know of any text software that is able to grab serial data.
On Windows I have used Cpp, C# and VisualBasic for communication over serial port.
For just testing I am using Docklight-Terminal, but any other terminal software will also do.
Some time ago I saw a VBA macro for Excel that fetched data from measuring instruments via the serial interface and displayed it directly in Excel.
Should also work in Word. - Topic: Fail to power on.You Reply: My Alpha, mounted on the back of a 10.1-inch touch screen.
Power supply via my own 12V power supply, because the electronics of the LCD also needs 12V.
To make the connection compatible with the devices of our company, I had to use the large green connector.
(can not upload any pictures at this moment )
Behavior when applying the 12V, power LEDs red and blue next to the connector "SW
Step one:
blue : 1 short flash
red : starts with light-dark dimming, approx. 6 seconds long
Step 2:
blue : off
red : approx. 1 second off
Final state (Power-Off-State):
blue : 1 short flash every 4 seconds
red : dark on
Power consumption now : 85mA / 12V
Voltages :
Ardunio_5V : 5,0V
BIOS_5V : 5,0V
BIOS_3V3 : 3.3V
I2C_1V8 : 1,8V
Voltage via plug connector "SW" : 3.2V
I hope this will help you - You Reply:
wheresdrew wrote: ↑Fri May 31, 2019 11:06 am I'm convinced that LP should hire you. You seem to know more about their product than they do, and you offer better support.
I totally agree ! - Topic: Slow HDMI screen refreshYou Reply:
clarkjwc wrote: ↑Fri May 31, 2019 12:50 pm On a new 4G 64G card with most current Windows I am seeing slow windows screen refresh. Just moving the cursor may give a black screen for as much as 14 seconds.
Sorry, but no advice
I have set the attached LCD display to off in the BIOS -- no help. Device Manager lists Intel Corp driver version 20.19.15.4549 11/10/2016.
Just clicking on the Windows icon at bottom left to go from win 7 type screen to win 10 display will cause a slow black refresh. If I leave the curson sitting there the screen will continue to alternate with 5 second black screen.
I am using Logitech K400+ keyboard and M570 track ball with logitech Unifying Software and the dongle is the USB-3 slot.
Even when I pull the dongle out the screen cycle continues.
Moving the dongle to USB-2 slot made no difference.
Screen is 12 inch 1920 x 1080 Text size 150%
Advice?
I incorrectly reported this issue in the Alpha area.
Updates:
I have applies the latest driver from Intel.
I have tested of second K4 display -- even more problems.
I do have a 3 amp supply.
Additional noticed problem. when I select power from the windows icom first I get a malformed box for sleep shutdown restart , then a correct display. If i select shutdown the screen freezes, no more mouse movement on shutting down screen just frozen. on the other hand is I bring up task manager and select the power options from the right bottom is see the normal windows actions.
But I moved and merged your topic - Topic: LP Delta picturesYou Reply: Thanks for the pictures ccs_hello !
If anybody needs exact dimensions for building a PCB :
https://www.lattepanda.com/topic-p30682.html#p30682 - You Reply: Here are the promised layout and dimensions, but only for the Delta.
Delta_Dimension.jpg (521.09 KiB) Viewed 24018 times
Delta_3D.jpg (199.34 KiB) Viewed 24018 times I got the Delta recently, but I'm still waiting for the Alpha from the Kickstarter campaign.
LattePanda is obviously not able to find a failed shipment or react to our complaints with anything other than excuses.
My company and I are really disappointed.
Even as an admin and "spam terminator" of this forum I don't get any answers, neither on PM here in the forum nor on a ** request. That's why I've stopped my activities here for the time being.
The ZIP file contains files from my layout program www.altium.com.
Maybe these files can be read by the free software version www.circuitmaker.com as well. LattePanda_Delta.zip (1.86 MiB) Downloaded 502 times Edit : The ZIP-File includes NOT the LP-Step file (White part in picture) because the size of ZIP-File was to big to upload with.attachments:
attachments:
attachments:
- You Reply: I think you destroyed your LP classic.
The PCB certainly has 6 to 8 inner layers with <0.1mm wide traces and micro vias. When desoldering the connectors strong mechanical forces occurred, as you can see on the photos at the yellow-orange places. These forces have probably torn up traces and/or broken vias.
Soldering on multi-layer boards is a very difficult task... I don't do that with components with vias myself as a professional.
(Translated from German with deepl.com) - You Reply: 1.
You need additional hardware, a level translator.
For example the MAX3373
2.
You need a driver for the I2C pins of the Intel CPU.
For Linux there should be such a thing, but I am not sure.
For Windows we are all still looking for the drivers...
LattePanda hasn't said anything about it yet. Since the introduction of the "Classic" we wait for these drivers... - You Reply:
nik wrote: ↑Sat Mar 02, 2019 6:10 pm
Hello nik,Lutz wrote: ↑Mon Oct 01, 2018 2:52 pm This is the same 3D model as the one before.
Hi Lutz!
i was making a footprint for the lattepanda alpha and i was impressed by how precise your model is. may you share it or if it is opensource do you have a link to download it?
thanks!
I am still waiting for my Alpha... some custom problems...
When I have my Alpha, I create a suitable layout with the correct positions of the connectors. I will publish that here... when I get permission from LattePanda.
The 3D model in my old post is a normal export function of my PCB layout program "Altium". - You Reply: Moved.
- You Reply:
Roland_123 wrote: ↑Sat Feb 16, 2019 8:48 am (...)
The ATMega 32u4 is an Arduino Leonardo and only connected via USB to the PC side.
Second thing is the integration of the ATMega 32u4 to the system. Is there any information other then the
two pictures of the GPIO headers about that. Some scematic ?
Is there a connection between the ATMega 32u4 and the Intel CPU so i can share data or control the Atmel
from an windows apllication ?
(...)
Exactly the same like an external Leonardo is connected to a Laptop.
https://www.arduino.cc/en/Main/Arduino_BoardLeonardo - You Reply: Since the "Leonardo" comes from the Arduino community, you might want to ask in the Arduino forum.
https://www.arduino.cc/
There are certainly more people who use Arduino under Ubuntu than here. - You Reply: Thread locked because of possible Spam links.
Please open a new one if necessary. - You Reply:
sefyonukki wrote: ↑Sat Jan 26, 2019 12:09 pm This issue is for long even for me. Not only Lattepanda product but also with any products over 50$, custom get hold of it. Any way out?
Those are the customs laws in our countries.
It is the same here in Germany.
There is no solution, unless you want to break the laws and make yourself liable to prosecution.
Here in Germany that would be a VERY stupid idea. No idea how it is in your country.
Sometimes one has the luck that the customs doesn't regard a Kickstarter product as a real purchase. But it probably depends on the official in the customs office. - You Reply: My very personal opinion :
Guys, forget the sh.. about powering the LP (whether Classic or Alpha) via USB, at least if you want to upgrade the system with all possible peripherals.
Learn the specification of the USB power supply and the USB connector.
After that you want to learn how to solder and build a reasonable power supply with a real power supply and your own connectors if possible.
My first basic rule for larger systems :
- LP (Classic or Alpha)
- Connect ALL peripherals via a USB hub with its own power supply.
- Power supply 5V / >=5A
Examples :
https://www.amazon.com/MEANWELL-Switchi ... wer+supply
(ATTENTION : external housing necessary because of the open mains contacts !!!)
https://www.amazon.com/Industrial-GST60 ... wer+supply
-- connect the LP with 1mm² cables each to one of the connectors (NOT the USB-Micro)
-- connect the USB-Hub with 1mm² cables each, use the plug from the supplied power supply and throw away the supplied power supply.
- Connect each peripheral that needs more than 100mA current to the power supply with its own cable.
- Add all currents of all peripherals and possibly use a power supply with more output current.