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

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!