Proffieboard v3.9 5v/Bat+ PIN problem

Proffieboards
1

Hello everyone.
I bought two proffieboards on AliExpress and a strange thing happened to me.
One of the two does not receive voltage from the Bat+ PIN, but it receives voltage and starts from the 5v PIN (the one next to Bat+).
The second one is powered correctly by connecting the battery to batt+, but it also starts by connecting the positive of the battery to the 5v PIN.
I thought that the 5v PIN was an output PIN and instead in my boards it seems to be an input PIN.
could the second one still work if powered by the 5v PIN?

2
  1. AliExpress boards have random quality, so problems are expected.
  2. There is definitely something wrong with the board if you can’t power it from batt+ (probably Q7)
  3. Connecting the battery to 5v should work, because the 5v circuit is used to feed the 3.3v regulator in case the battery voltage is low. However, there are some drawbacks:
    a) reverse-polarity protection will not work
    b) charging will not work
    c) volume will be lower than normal because voltage on the 5v pad will be lower. (battery voltage)
3

thanks for the reply.
what does “probably q7” mean?
also, is it possible to charge the battery through the proffieboard? what do you mean by “charging does not work”?

4

Q7 is a FET on the back on the board which handles reverse-polarity protection.
If it is broken, the symptoms you describe is what would happen.

V3 proffieboards can charge the battery from the USB port.
I don’t think you actually specified if your board is a V2 or V3 board though.

5

V3.9
What led the board use for charge indicator?

6

Unfortunately it does not always work as intended.

7

So if I understand, when I connect an USB cable to proffieboard and a battery Is connected to Bat+/batt- the board boot up and charge battery at the same time?

8

That is correct.

9

what happens if I try to turn on the blade while I have the battery and USB cable connected?
the amps of the USB alone should not be enough in theory to turn on the blade.

10

USB isn’t connected to the blade. Only battery power is.

11

Ox THX.
Now the only problem Is the indicator led on board. There Is a way to take out the led or for use the accent led likes battery charge indicator?

12

I show documentario and i can configure annecternal led likes a Blade.
I Will try.

13

In my actual assembly I can use the ch3led (White) PIN for status led.
But of i used this PIN for star led there Is another way to configure the status led Blade? Can I use une of the other led pins?

14

There are six LED* pins available. You can just use one of the other ones.

15

Ok so the green and White led in the documentario are only exemples.
For the test I Will use the White plled PIN (ch4led) becouse ch2/3 led are used for ws2812b.

16

There is no CH4LED.
I think you have misunderstood what CH1LED/CH2LED/CH3LED does.
CH1LED pulls out the RED channel.
CH2LED pulls out the GREEN channel.
CH3LED pulls out the BLUE channel.

Once pulled out, these can be assigned to a pin, but that’s done in a different argument.

17

Also, there is no “WHITE” channel.
White is created by combining red, green and blue.
A white led, like CreeXPE2WhiteTemplate basically uses min(RED, GREEN, BLUE) for activation.

More about this can be found here: ProffieOS Documentation: LED Configuration

18

On proffieboard site, in the configurator, there Is a configurati on for 4 Chanel star led and the White is connected to the PIN 4 in the right of the board.
I can’use this PIN?

BladeConfig blades = {
{ 0, SimpleBladePtr<CreeXPE2RedTemplate<1000>, CreeXPE2GreenTemplate<0>, CreeXPE2BlueTemplate<240>, CreeXPE2WhiteTemplate<550>, bladePowerPin1, bladePowerPin2, bladePowerPin3, bladePowerPin4>(), CONFIGARRAY(presets) },
};

It use bladepowerpin4, Is the PIN led4 in the schematics

19

Which power pin you connect to which led is completely arbitrary.

20

Yes you can.

This basically says:

* Use the RED Cree XPE2 template, with a 1-ohm resistor and send the output to bladePowerPin1 (also called LED1)
* Use the GREEN XPE2 template, with noresistor and send the output to bladePowerPIn2 (LED2)
* Use the BLUE XPE2 template with a 0.24 ohm resistor and send the output to bladePowerPin3 (LED3)
* use the White XPE2 template with a 0.55 ohm resistor and send the output to bladePowerPin4 (LED4)

Each template specifies how to control the output based on a three-component color (R, G, B), red green and blue are obvious, white is `min(R, G, B)`.  Styles operates on three-component colors regardless of how many different coloured output leds there are.

The important bit here is that the "channel" in CH1LED doesn't refer to an output pin or pad, it refers to the first component in the color, meaning "RED".
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