LattePanda Alpha 864 3D Model and Pinout

A place to talk about all the Operating Systems, Software & Hardware
User avatar
T1g_i
Posts: 7
Joined: Thu Jan 03, 2019 6:09 pm

Mon Jan 07, 2019 9:51 pm

Rew736 wrote:
Sun Dec 16, 2018 6:29 pm
Done.

pcmpic.jpg[/code]

Code: Select all

P+: VCC
C: SCL
D: SDA
S: NTC; GND -> R6 -> S
ON: ? (not needed)
P-: GND
pcmdiagram.png

dimension.png

batarduino.jpg

Code: Select all

Scanning...
I2C device found at address 0x0B  !
Sauce:
https://forum.xda-developers.com/showpo ... tcount=524
https://forum.xda-developers.com/showpo ... count=1944
https://forum.xda-developers.com/window ... 9-t3342113

Cheers!
Hello!!!!

I have some questions. First at all:

1. Do not I need pin 4 and 5 (SM-Bat_CLK and SM-Bat_SDA)?

2. Can I use this battery without problems?

https://www.aliexpress.com/item/7-4V-Re ... 50457e3507

3. If i use this battery, can I load it over the USB-C-connector on the Alpha? So is a charge controller on the board?

I have some fear because of that test passage in the docs: "And wrong power connection will definitely break for LattePanda Alpha!!!"

Best Regards
T1g_i

User avatar
LittleDuckAlex
Posts: 5
Joined: Tue Jan 08, 2019 6:10 pm

Tue Jan 08, 2019 7:30 pm

T1g_i wrote:
Mon Jan 07, 2019 9:51 pm

Hello!!!!

I have some questions. First at all:

1. Do not I need pin 4 and 5 (SM-Bat_CLK and SM-Bat_SDA)?

2. Can I use this battery without problems?

https://www.aliexpress.com/item/7-4V-Re ... 50457e3507

3. If i use this battery, can I load it over the USB-C-connector on the Alpha? So is a charge controller on the board?

I have some fear because of that test passage in the docs: "And wrong power connection will definitely break for LattePanda Alpha!!!"

Best Regards
T1g_i

Hi, in response to your questions:

1. Do you “need” these? I’m not sure, but seeing as those two wires control the communication between the battery and the LattePanda, even if you could power the LattePanda without them, you wouldn’t get a battery percentage, and I don’t know if charging would work. I’m not sure why you’d want to get rid of these wires, but I wouldn’t advise trying it.

2. Absolutely, you can use that battery. I bought the very same one for my LattePanda and it works fine.

3. Yes, the battery can be charged via the LattePanda’s USB C port.

Hope this helps. Just note, unlike applying power through the USB C port, the LEDs on the LattePanda (at least for me) don’t go to solid red with a blue flash, instead the red glows as with USB C power, but then both LEDs go off. Holding the power button boots the LattePanda as normal.

Alex

User avatar
T1g_i
Posts: 7
Joined: Thu Jan 03, 2019 6:09 pm

Wed Jan 09, 2019 11:09 am

LittleDuckAlex wrote:
Tue Jan 08, 2019 7:30 pm
T1g_i wrote:
Mon Jan 07, 2019 9:51 pm

Hello!!!!

I have some questions. First at all:

1. Do not I need pin 4 and 5 (SM-Bat_CLK and SM-Bat_SDA)?

2. Can I use this battery without problems?

https://www.aliexpress.com/item/7-4V-Re ... 50457e3507

3. If i use this battery, can I load it over the USB-C-connector on the Alpha? So is a charge controller on the board?

I have some fear because of that test passage in the docs: "And wrong power connection will definitely break for LattePanda Alpha!!!"

Best Regards
T1g_i

Hi, in response to your questions:

1. Do you “need” these? I’m not sure, but seeing as those two wires control the communication between the battery and the LattePanda, even if you could power the LattePanda without them, you wouldn’t get a battery percentage, and I don’t know if charging would work. I’m not sure why you’d want to get rid of these wires, but I wouldn’t advise trying it.

2. Absolutely, you can use that battery. I bought the very same one for my LattePanda and it works fine.

3. Yes, the battery can be charged via the LattePanda’s USB C port.

Hope this helps. Just note, unlike applying power through the USB C port, the LEDs on the LattePanda (at least for me) don’t go to solid red with a blue flash, instead the red glows as with USB C power, but then both LEDs go off. Holding the power button boots the LattePanda as normal.

Alex
1. At the Pinout at the docs, these wires are NC. So I think the Lattepanda can not use them? Or are they connected?

The Red LED is the Arduino LED. (You can turn off the Arduino in the BIOS with "Arduino powercontrol".) So I hope it starts with the Panda with the battery?
If I connect my Panda to the USB-C Adapter, the Panda starts automatically.

AND I have a big problem. Sometimes if I connect my Panda with the USB-C port, it does not start at all. I must connect it several times to power it up. What can that be?

T1g_i

User avatar
redjr
Posts: 2
Joined: Fri Jan 11, 2019 12:58 am

Fri Jan 11, 2019 5:46 pm

You need to make sure you use an adapter that is rated as a 'Power Delivery" one. These are usually labeled multi-voltage and current. Especially when powering over USB-C. Another adapter may damage the Alpha. Proceed with caution.

User avatar
Vasilius
Posts: 2
Joined: Sun Jan 20, 2019 12:51 am
Location: Ukraine

Sun Jan 20, 2019 1:20 am

Hello.
Have questions about 3-D models:
1. Incorrect battery connector location:
mismatch-1.jpg
mismatch-1.jpg (713.94 KiB) Viewed 3160 times
2. Incorrect location of touchpad and display connectors:
mismatch-2.jpg
mismatch-2.jpg (861 KiB) Viewed 3160 times
3. Incorrect location of the reset button:
mismatch-3.jpg
mismatch-3.jpg (779.96 KiB) Viewed 3160 times
4. Incorrect location and number of pins of expansion connectors. There should be 50 conclusions on the model 48 conclusions:
mismatch-4.jpg
mismatch-4.jpg (1.03 MiB) Viewed 3160 times
Please post the correct model. Thanks you.

(Translated by Google translator from Russian.)

User avatar
ccs_hello
Posts: 438
Joined: Sat Oct 13, 2018 9:16 pm

Sun Jan 20, 2019 5:37 pm

T1g_i wrote:
Wed Jan 09, 2019 11:09 am
.....


AND I have a big problem. Sometimes if I connect my Panda with the USB-C port, it does not start at all. I must connect it several times to power it up. What can that be?

T1g_i
See https://www.lattepanda.com/topic-p27178.html#p27178

User avatar
lilcdj
Posts: 2
Joined: Wed Jan 16, 2019 2:39 am

Tue Jan 22, 2019 3:07 am

how is battery charging??? and can i get battery amount percentage using this battery??

User avatar
zzarr
Posts: 9
Joined: Fri Feb 08, 2019 7:32 am

Fri Feb 08, 2019 7:35 am

Hello!

I'm also interested to know how long it would take to charge and how long battery life one would get.

Best Regards
/ Rasmus

User avatar
ccs_hello
Posts: 438
Joined: Sat Oct 13, 2018 9:16 pm

Fri Feb 08, 2019 1:24 pm

LP Alpha's internal charging circuit's CC setting is 1.89A. For a 3800 mAH battery pack, charging from empty to full will be approx 2 hours.
Note the cited battery pack (as used in Cubie i7, and i9) is 38 Watt-hour type.
How long will the battery last? That depend on actual usage. LP Alpha can go in between 8 Watts and 20 Watts (without additional peripherals or under stress test.)
38/8 ~= 4.5 hours in optimal case, and in heavy use, less than 2 hours.

User avatar
zzarr
Posts: 9
Joined: Fri Feb 08, 2019 7:32 am

Fri Feb 08, 2019 7:07 pm

That's very nice!

How much power does the alpha drain in suspended mode?

Is there a search term (e.g. the name of the connector type) for compatible batteries?

Best Regards

Post Reply