Hi, thanks for your project. I already done several shields and they works flawlessly.
My question is can I use 1000uf 16v capacitor instead of 25v? 25v version is too high for my enclosure.

Hello, sorry I choose this way to write to you. Do you also sell assembled WLED-wemos shields? Would love to buy a few from you. Do you have an email address? Would also leave mine here if they sold me one or more WLED-wemos-shield. I come from Germany and have only started soldering since last year.
Sincerely yours
dioem1985

First of all, thank for this project! 👍

I recently ordered 10 pieces of the v1.2 board.

Know I see there is a version v1.3. 😮

It would be great if there was a changelog to see what was changed (and why).
It is hard to check for the changes yourself since Github cannot show diff of binary files. 😉

Hi, great project. Have you thought of offering an assembled kit?

Thank you very much for this project. It has simplified my setup so much and I'm in the middle of replacing all my controllers with this one.
That being said, of you could upload a 3d format of the populated board, it would be much easier to create enclosures quickly.
If you do upload one, step output would be the easiest to use in most cad programs. Stl or obj output will produce ok results but, it's hard to work with in cad most of the time. With step, I could easily project from components to sketches.

I'm not sure what program you used for creating the board but, if eagle, then fusion can natively import the project and enclosures are a part of that workflow. If something else, I'm not sure what output options it has. The renderings make me think it's possible to output something useable though.

Again, thanks very much for the work you've put in already. It's very much appreciated. I can finally hand out things I make with this and expect a normal person to be able to figure it out.

I can only locate the WLED wemos shield box v1.0 and not the latest one with the png you uploaded 12/9/2020

Hi

Just tried out today my WLED Wemos shiel, but got only one, white LED lighting. Connecting to the build in AP was successful, but changing led type and/or other settings didn't help.

After some troubleshooting, I figured out, that for this board, the datapin in the firmware is wrong. when i connect the leds datapin to D4 of the board (https://bit.ly/3gWNehp), the whole thing is working as expected.

I do not think, that this is a hw issue, I've 4 identical boards, all with the same behaviour..

Regards
Chris

I just bought a few of these but I'm not sure how to enable the OLED display. Do I need a custom build of WLED for? Or is it an option to configure somewhere? thx!

It has been a long time since I setup this shiled with WLED . :)
So took me a few minutes to get it working again this time.

My issues were:

• I was not sure what pins are used by this shield.
• I guessed correct it uses the default pins
• I forgot to set the relay pin. So the LEDs stayed off at first.

Maybe this information should be added to the README.

I just read the changelog of WLED version 0.12.0.
It supports multiple LED outputs.

I guess you could still use just one relay to power on/off all led strips at once.

The level shifter (SN74AHCT125N) is already able to support up to four outputs, too.

Only the additional terminal blocks would need more space, I think.
But maybe we could keep using one GND and one + for all strips and only add the extra DI (and CLK?).

I really would like to use a shield with support for at least two LED outputs. 😎

The D1 blinks once and goes dark. Led indicator on wemos-shield is lit up. D1 is fine when connected via usb. Unsure of why,

Is it possible to get the gerbers/schematic for the mini shield? I don't see them on the repo.

Thanks

EJ

Hello,

i have Build the Board and its not Working.
Is it Possible that "R8" is needet ?

Hello,
the value of F2 (RUSBF075-APHFCT-ND) in your BOM is 30V 500mA, but it is a 6V 750mA fuse.
And aren't 6v a little bit too low? For example when somebody accidentally connects it to 12V 😅 it is possible that electricity arcs over the fuse.
Wouldn't this PTC fuse be better?
DigiKey: 507-2375-ND

I've some boards with all the options and was under the impression that the temperature would be displayed in the info section as well as mqtt (not tested).

I've uncommented the

#For Dallas sensor uncomment following 2 lines
OneWire@~2.3.5
milesburton/DallasTemperature@^3.9.0

Complied for both d1 mini (clone) and my ESP32 and can't see it anywhere

Hey,
something is wrong with Digikey part list. The quantity doeas not match with the BOM. I don't know if there are any more errors.

Hi

I tried my Wemos shields today with my "lighted bookshelf" and ran into some issues.

As soon as the LEDs are lit up, they start with some strange flickering. Also when i change the color, the whole strip flickers and switches then (most times) to the right color.

I know, that this can be related to power issues, but I'm sure, that my power supply is well dimensioned (10amps, 126 LED consuming max 7.5amps).

As soon as I touch the data wire leaving the sheild, everything works well. Also when I'm replacing the shield with another controller the flickering dissapears.

Do I need to somehow terminate the data wire at the last strip?
Or might it help, to use a level shifter as amplifier between the strips?

I know, that I'm not using the relay, but this should not be a problem, because I'm still connected to the same VCC and GND path or not?

Noob-style-wiring-diagram :D

                                                            +--------------------------------------+
+-------------------------------+                           |                                      |
|                         GND   +-------------+-------------+ GND                                  |
|                               |             |             |                                      |
|                         VCC   +------------------+--------+ VCC                                  |
|    WLED Shield                |             |    |        |          LED Strip 1 (18LED)         |
|                               |    DATA     |    |        |                                      |
|                         DOUT  +---------------------------+ DIN                            DOUT  +---+
|                               |             |    |        |                                      |   |
+-------------------------------+             |    |        +--------------------------------------+   |
                                              |    |                                                   |
               +------------------+  GND      |    |              +------------------------------------+
               |                  +-----------+    |              |
               |                  |           |    |              |    +----------------------------------------+
               |   PSU, 5V 10A    |  VCC      +------------------------+ GND                                    |
               |                  +----------------+              |    |                                        |
               |                  |           |    |              |    |                                        |
               +------------------+           |    +-------------------+ VCC      LED Strip 2 (18LED)           |
                                              |    |              |    |                                        |
                                              |    |              +----+ DIN                              DOUT  +--+
                                              |    |                   |                                        |  |
                                              |    |                   +----------------------------------------+  |
                                              |    |                                                               |
                                              |    |              +------------------------------------------------+
                                              |    |              |
                                              |    |              |
                                              |    |              |
                                              |    |              +--+    Strip3 -- Strip 4 -- Strip 5 -- Strip 6  +---+
                                              |    |                                                                   |
                                              |    |           +-------------------------------------------------------+
                                              |    |           |
                                              |    |           |      +-----------------------------------------+
                                              +-----------------------+ GND                                     |
                                              |    |           |      |                                         |
                                              |    |           |      |                                         |
                                              |    +------------------+ VCC     LED Strip 7 (18 Led)            |
                                              |    |           |      |                                         |
                                              +    |           +------+ DIN                                     |
                                                   |                  |                                         |
                                                   |                  +-----------------------------------------+
                                                   |
                                                   +

Hello,
and thanks for the nice project.
I have built the board in Version 1.3.
Sadly, it is not working, and I have no voltage output on the output pins.

So far, I have checked PIN D6 which should be the relay pin. If the wemos is not connected to board, I get a high and low signal (0 vs. 3.3 V). If I put the wemos on the board, I get 0 V and 0.4 V.
If I disconnect the board from the power supply and check for continuity D6 is connected to ground. I think this is not correct?

I have also added the switch to the board. All pins of the switch also have continuity with ground.
Furthermore, I do not know if JP3 needs to be connected or not?

What is the purpose of D3?

I hope someone can help me

Currently the text on the PCB where the fuse holder is placed is "FUSE".
Can you change this to "F1"? I think this would be better. 😄
There's no hurry, but if you want you can change this when you plan your next release.

Could you please provide me with the 3D images of the assembled PCB (no-audio and audio) in F3B or any other format? That would be great. Thank you.

Hi,
thank you very much for this cool project! I recently ordered come PSBs v2.0 and the required parts. While assembling a minimum setup I struggled to find the correct place for the fuse F2. There's no lable on the PCB for F2. But after a while i figured out to place in on the right hand side of D2. Maybe it's worth to add a lable for F2 on the PCB!?

A Wemos D1 Mini (also tested with D1 Mini pro) is now starting and accessible viw the webinterface. I confiugre the relay to use pin / GPIO 12, works as expected. LED out (DI) is configured to use pin / GPIO 2. But I cannot light any LED. Not sure if my setup is correct. I've also added R1 and R2, but still no light. Firmware is the latest v0.12.0-b3

Is there anything missing?

Many thanks for any hint!

PS: Still waiting for the fuse holder, therefore I'vs added a short cable just for testing.

I want to build the audio version of the WLED-wemos-shield and I have some PJ-210B audio connectors lying around. Is there any reason why I shouldn't use these instead of the SJ1-2503A?
I compared them, and they look the same.
The PJ-210B is a perfect fit in the PCB.

Hello, I have successfully flashed the shelly wled firmware. However, I cannot get the button to work or the OTA update. The OTA fails with tasmota and wled firmware. Please advice.

Hi, thanks for the work you put into this.
I'd like to make some minor changes to the board to allow for locally available parts.
Are the source files of the PCB available for modification?

According to the datasheet for the VXO7805-500 the ceramic cap on the 5V side (C5 in the WLED-wemos-shield) is recommended to have 22µF (see C2 in Fig. 1 / Table 1 on page 6 of the datasheet). I don't know if that is important here, as there is also cap C6 on the output side with higher capacity.

Hi,

To be honest, I don't know my way around anymore.
There are different BOMs and different PCBs in the repository.
I have ordered the v2 of the PCB and the bare-mininum parts of the BOM v1.3, but now seems not to fit perfectly.

Please info what is correct now - which BOM belongs to which PCB and maybe then I could help updating the soldering instructions. I'm not sure if the thing should work now.

And the Bare-Minimum list tells R8 - where should this one go? I don't find it on PCB. thx

Hey,
the Digikey number for R1, R3, R4 is CFM14JT10K0. This is not the Digikey number, but the manufacturer part number. 😄

At first, thank you so much for your great work! I just ordered 150 boards for a lot of own Smart-Home-projects and for some Friends, who are such nerds! ;) And 10 sound reactive boards for testing. I hope PCBWay will pay you the promised 10% as I have not found your "Buy me a Beer"-Button! ;)

I have a question about fuse F1. Unfortunately the BOM does not list which fuse should be inserted there. Don't I have to calculate down the ampere of the 32V fuse for a voltage of 5V?

If I calculate with a maximum of 10A at 5V, because the relay should not switch more, then I think that I have to convert the corresponding values of the fuses, which are indicated with a nominal voltage of 32V, or am I wrong?

With 10A, 5V I get 50W which is about 1,6A at 32V. The next suitable fuse would be 0297002.WXNV (Digikey), right?

Greetings from Germany,
Oskar

Can you add a variant that gives you possibility to use 5V or 12V power supply and 5V or 12V LEDs by using the power selector, but without temperature sensor, BME280 sensor and OLED display?

Please consider swapping data pins on the data output header. This was a smaller connector can be used if only using one data connection and not the clock.

i may be blind, but the value for R8 is not listed on BOM. I can't seem to find R1 on the board either. Thanks for the info in advance.

What size would you recommend?

Hallo,

is it Possible to Update the BOM, to show wich Part you need for wich Option ?

Because you Updatet your list but if you have an older version it dosent match anymore.

I have done it for the 1.3 version
BOM 1.3 Update.xlsx

Hey,
are you interested in adding an overvoltage protection?

Hey,
what about putting an link and qr-code to wiki on pcb.
I could look like this:

This is the link i used: https://bit.ly/3oycoqm
Here are the qr-code: qr-code.zip

Hello,
in your BOM the Digikey of 1N4148 does not exist.
Can you update this?
Also it would be nice if you create a shopping cart link for digikey. :)

Hey,
it seems that the 10k OHM Resistor is a little bit too big for the holes.

It's quite a struggle to get it fit into the holes.

The 4.7k OHM Resistors have the perfect size for the holes.
Maybe you choose 10K OHM resistors in the size of the 4.7k OHM resistors in your BOM, if possible. 😄

I flashed my ESP32 (form factor Wemos D1 Mini) with wled_base_2007020.bin from https://github.com/srg74/WLED-wemos-shield/tree/master/resources/Firmware/0.10_2007020/ESP32. Wifi and the web interface work, but neither the relay nor the OLED work. With an ESP8266 at least the relay works. I haven't been able to test LEDs yet.
What do I have to consider if I want to use an ESP32 instead of an ESP8266 and which OLED display is supported?

WLED has support for IR remotes.
I think this would be a great addition to this board. Just requires 3 pins to support a tsop38238.

Hello,

First off, nice work! Really appriciate the time you've taken to make this. I was wondering what the maximum load is i can connect to this board. I have long SK6218 led strip that consumes a max of 15A. But i noticed the Relay has a max of 10A. Do i need to replace some parts of the board with higher capacities?

Kind regards
Kevin

Hi,

i've ordered these ones from aliexpress (https://www.aliexpress.com/snapshot/0.html?spm=a2g0s.buyer_leave_review.0.0.1fbe6c1bQkU1Ve&orderId=8130740139745887&productId=32848919879) in 10µF (the only "technical" difference from my point of perspective is that they are suitable for up to 50V) for 12V Compatibility - they does not fit perfectly but it's acceptable. I guess these should also work as C4, C5 right.

I'm asking because after I have soldered them and put the Jumper to 12V and added a 12V PSU - the esp does not light up anymore.

Maybe it's a misunderstanding and the 12V Support is only supported for OUTPUT.

Cheers

Hello again!

I couldn't find any extra bare-minimum documentation for the sound reactive board. (Or does it exist and I am just too damn dumb to see it?) So I compared the two BOMs to identify the extra parts the SR-board needs.

This is my result:

R8, R9, R10, R11, R12, C3, C7, F2 (different than the standard version), Audio Socket and SW1.

Am I right or did I miss something?

Greetings from Cologne, Germany
Oskar

First off, thanks for making this awesome solution and allowing it to be open! I've got a question about the 16v radial fuse. Is there an alternative to this, I'm finding the availability of these are slim. Thanks in advance!

Hello,

would somebody help me getting a part list together for shopping in the EU? I think Reichelt would be a good source. https://www.reichelt.de/?LANGUAGE=EN

Thanks
Jan

Hello,

I am trying to test this version but it is impossible to modify the number of LEDs in the configuration.

Can you take a look at it?

Greetings

The maximum load you can connect is 10A. With greater loads traces leading to and from relay contacts have to be soldered with access of solder to make them ticker due to higher current.

So I can use more than 10 A if I add solder to the traces?!
I just noticed the recommended relay SRD-05VDCSL-C has printed 10 A in the top.

1. So I guess even with bigger "with access of solder" you cannot/should not use more than 10 A.
2. If the traces (with more solder) can handle more load: Is there a compatible relay available that supports more load (e.g. 15 or 20 A)? Or should this be avoided for this shield anyway?

Maybe the FAQ can be more clear about this.

A very good shield. Thanks!
There is a proposal to further modify this shield with touch buttons. For example: TTP223 or TCRT5000 IR. This will add extra convenience when turning on / off the device.

First of all thanks for this awesome shield! I just assembled my first v1.5 bare minimum board + temperature sensor. However, I was not able to turn the LEDs on on the first try. A look at the schematic revealed that R2 is actually required as it connects the level shifter output to the screw terminal. I soldered a 120Ohm resistor in that place (no 150 Ohms at hand) and it now works like a charm.

So I suggest updating the "Bare minimum" page to include R2.

Hi,
first of all thanks for your Shield.
Ive used one with a WS2812-Stripe, perfect.
But now I build one for outdoor and want use it with WS2815 12VDC.
my first test works fine, but there is still one question, nowhere found a solution in your Wiki or anywhere else.
The WS2815 works with two DIs, one is for StandBy, if anything happens with the first one.
Was there a way to connect and use the DI2?

Best regards
Thomas