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Hardware => Lynx Express => Topic started by: cmorda on October 17, 2017,

Title: $4 Lynx wireless??
Post by: cmorda on October 17, 2017,
I made some adapter boards for the ESP-01 WiFi module that can be had for about $2-$3. They work with the ESPixelStick firmware, which is in active development.

Anyone interested in the design? You can have them made on OshPark for next to nothing. Well, 50 cents each to be precise, in multiples of three.

Other than the ESP-01, and the small PCB, all that is needed is a 2x4 female header socket and a 1x4 male header.

Photos attached...
Title: Re: $4 Lynx wireless??
Post by: rjhodgefamily on October 17, 2017,
I would be interested in trying it out.
Title: Re: $4 Lynx wireless??
Post by: cmorda on October 18, 2017,
Great! Do you have any ESP-01 modules and the means to program them?

Here is a link to the manual for ESPixelStick. The hardware part will be irrelevant but the programming and usage information applies. http://forkineye.com/wp-content/uploads/2016/09/ESPixelStick-V2-Assembly-and-Usage.pdf

The link to the firmware is in the manual.

Finally, here is a link to the board on OSH Park
https://oshpark.com/shared_projects/6iJ3dxPj

Let me know if you have any questions or need help. And also share your results!

EDIT:
Lastly, if you want to try it right away, I can send you a board that needs a small modification. That is what I am currently using. The first design I made used the ESP TXD pin to send DMX data. ESPixelStick uses GPIO2.
Title: Re: $4 Lynx wireless??
Post by: rjhodgefamily on December 21, 2017,
So just now getting around to playing with this and had a couple of quick questions.

1. What do I use for the SSID and Passphrase when setting this up for an Lynx Etherdongle and Lynx TX/RX?
2. Do I set the device as Serial or Pixel? I am assuming serial since this is going on a LE.
3. If serial what is the serial port number that I set?

I think everything else I can set in the web interface for the device.

Thanks,
Richard
Title: Re: $4 Lynx wireless??
Post by: Dennis Cherry on December 22, 2017,
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So just now getting around to playing with this and had a couple of quick questions.

1. What do I use for the SSID and Passphrase when setting this up for an Lynx Etherdongle and Lynx TX/RX?

Your routers SSID and paraphrase, it is login into the router like any other wireless device, if using Unicast then you assign the IP you want for the ESPixelstick, else let the router assign an IP in multicast.

2. Do I set the device as Serial or Pixel? I am assuming serial since this is going on a LE.

You set to serial, Pixel is for intelligent RGB nodes.

3. If serial what is the serial port number that I set?

The DMX universe you assigned in your sequencer for that device.

I think everything else I can set in the web interface for the device.

Thanks,
Richard
Title: Re: $4 Lynx wireless??
Post by: rjhodgefamily on December 22, 2017,
So I am not currently using a router in my setup. Everything runs through the etherdongle and a lynx tx/rx wireless dongle. Sounds like this won't work unless I add a router to my setup which I was trying to avoid having to do. For whatever reason my head kept thinking it would just be a drop in replacement for the EX/RX boards.

So current set up looks like this:

FPP on RasPi ---> Etherdongle ---> Lynx TX/RX Wireless ---> LE's Using EX/RX boards

If I decide to go this route with adding in a router the new set up would look something like this:

                                          ---> Etherdongle ---> Lynx TX/RX Wireless ---> LE's Using EX/RX boards
                                        /
FPP on RasPi ---> Router <
                                        \
                                          ---> LE's/SSR4's Using ESP-01

Just want to make sure that if I go this route I have everything right now, while I have time to play with stuff. Since this years show is already running and this was for next year anyways.

Thanks,
Richard
Title: Re: $4 Lynx wireless??
Post by: winwin on December 28, 2017,
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Great! Do you have any ESP-01 modules and the means to program them?

Here is a link to the manual for ESPixelStick. The hardware part will be irrelevant but the programming and usage information applies. http://forkineye.com/wp-content/uploads/2016/09/ESPixelStick-V2-Assembly-and-Usage.pdf

The link to the firmware is in the manual.

Finally, here is a link to the board on OSH Park
https://oshpark.com/shared_projects/6iJ3dxPj

Let me know if you have any questions or need help. And also share your results!

EDIT:
Lastly, if you want to try it right away, I can send you a board that needs a small modification. That is what I am currently using. The first design I made used the ESP TXD pin to send DMX data. ESPixelStick uses GPIO2.

Great job. I might be interested to give it a try for the next season.
I keep my 4 LEs away from the elements; They are mounted on a board next to each other inside the house and are daisy chained together with cat 5. From there, I run cables to the lights outside. Keeping the same layout I assume only the first LE would have to become wireless and keep the daisy chain as it is. Is that correct?
I have never bought from OSH Park before. Can you only get 1 or 2 boards from them or do you have to buy in larger quantities? Don't really want to get into etching my own board (yet).

Title: Re: $4 Lynx wireless??
Post by: rjhodgefamily on December 28, 2017,
Just do the prototype board. That is what I did. Cost about $5 if I remember right and it came with 3 boards. As far as set up that is correct that you would only need wireless to the first LE and then daisy chain the rest.
Title: Re: $4 Lynx wireless??
Post by: winwin on December 29, 2017,
Just ordered 3 boards for a total of $1.50 and free shipping. Not sure how long it will take but not pressed by time now.
Thanks for making this board available to us.
Title: Re: $4 Lynx wireless??
Post by: mmciver on January 04, 2018,
Looks like a pretty cool little project.
So this lets you setup a LE like an e.131 device on the network?

MIke.
Title: Re: $4 Lynx wireless??
Post by: rjhodgefamily on January 04, 2018,
Yeah I think that is what it is supposed to do. I am waiting until this weekend to take the show down and play with it more. If it works it is an extremely cheap alternative to the EX/RX.

I found the easiest way to program it is to buy one of the ESPixelSticks for $20 off of Amazon.