Really cool! This was a feature i was asked a lot for my dock\new, but i've never implemented it. I'll be more than happy to link this project.
Let us know how the project goes 
BTW i can't open the project in my kicad version. Are you on a nightly build?
@Wojciech-Kapelinski The project is released on github, at the moment i'm not planning to do any new version
@Douglas-Kryder
Today i've done a factory reset. To respond to your question about setup: you'll also need to follow this guide https://docs.onion.io/omega2-docs/using-ethernet-expansion.html#using-ethernet-expansion to set up internet access via ethernet.
.lan doesn't seem to work for me (unless i'm connected to the omega's own AP)
@Sekar-Pdkt
Contact me via PM, i may have one or two assembled
@Douglas-Kryder
Check that you have 3.3v on the correct pins prior to inserting the omega in the dock!
@Douglas-Kryder Well.. the cause for the led not powering up i think that would be the fact that you have a capacitor instead of a resistor on R5.
But you said that neither the omega is powering on. I'd look for shorts and solder bridges on the board. E.g. on the microusb connecctor seems like that on the first two pins (from left to right in the picture you posted) there is a solder bridge. It will be easy to clean with a solder wick.
Did you tested the regulator in circuit?
3.2 or 3.4 wouldn't make that much difference, don't worry.
@Douglas-Kryder
Can you post some photos of the component side?
After plugging the usb you should measure the voltage on the regulator's pins
BTW don't insert the omega in the dock again before we resolve this power supply issue.
@Douglas-Kryder Yes the green dot is the cathode, my mistake with the picture. I'll fix that in a moment (although it will need some time for the github's internal cache to reload).
Green dot should be facing the edge.
EDIT: doing some research, the dot can either indicate the anode or the cathode.
When in doubt, better test the led with a multimeter in the "diode test" mode.
Otherwise, referring to the datasheet seems a good idea, if you have a part number
@Douglas-Kryder Sure.
C3, C4, C5 are ceramic capacitors. They are not polarized, so you can put them in either way.
F1 is a PTC, basically a resistor that changes it's resistance according to the temperature, and it is non-polarized too.
D1 is a LED, so it is polarized. Anode and cathode should be marked on your led. Some of the most common markings are shown here (https://goo.gl/images/WXHRK8). In the dock\new, the cathode (negative) side of the LED is facing towards the edge of the board (to the right in this picture)
@Allnight keep me updated, if you need any help!
@Douglas-Kryder how is it going with your board?
@Razvan-Dragomirescu said in My Omega 2/2+ dock\new:
Do you plan to offer these commercially (assembled)? They would fit perfectly for a project I am working on.
Currently i'm not planning to. I can make one or two boards for who can't solder it's own, but for the moment i'm not planning anything commercial.
If you need some production beyond that you can do it, the license allows it. If some commercial production is made, any donations will be appreciated.
@Douglas-Kryder said in My Omega 2/2+ dock\new:
@valerionew ok, thanks for the information. my boards arrived today so i pick them up Monday from post office and begin assembly. did you have to perform any kind of setup for this ethernet board like described on this page for the onion eth expansion?
https://docs.onion.io/omega2-docs/using-ethernet-expansion.html#using-ethernet-expansion
Cool! Pretty quick in the US! In Europe usually i need to wait about 20 days.
Moving on, i've done a lot of tests troubleshooting the ethernet in the previous version, so i can't remember exactly if i've done any extra configuration. For what i can remeber, the only configuration that was needed, was the first point of that guide. Currently in my /etc/config/network i have this:
config interface 'wan'
option ifname 'eth0'
option proto 'dhcp'
So modify/add that and don't forget to restart the daemon: /etc/init.d/network restart
If everything is working correctly, you'll se something like this on the dmesg when you connect the cable: rt3050-esw 10110000.esw: link changed 0x01;
You'll be able to see the eth0 local ip with ifconfig;
And you'll be able to ping anything on the internet with ping -I eth0 [address].
Let me know!
@Douglas-Kryder said in My Omega 2/2+ dock\new:
- is there a way to get lights to work?
No, the right pins are not wired out from the chip.
On the Omega2S, as reported here, they are, but unfortunately not on the Omega2/2+.
- is it ok to drill holes for the pins?
as far as function of the 2 pins i'm guessing they are + & ground for power to the lights. this would be a nice feature to have if possible. thanks in advance for any comments someone may have on this issue.
I wouldn't suggest that, because top plane is +3.3V, bottom ground plane is ground. There's a big risk of making a short on the power if some pin somehow touches exposed copper on top and bottom.
I suggest you to snip them off, as close as possible to the plastic case
Anyway i'll consider making some holes (not connected) in the project, in future versions
Do:
nano /etc/opkg/distfeeds.conf
Uncomment the first line (reboot_core)
Save the file
opkg update
opkg install kmod-i2c-gpio-custom
EDIT: that module needs kernel 4.9.44. On my omega i have 4.4.46. I don't know if it's safe to upgrade.
@Denis-Ilie-Ablachim why don't you give us the part number of the ic you are using? Would bit banging (on some other GPIOs) be a solution?
By the way i checked the ethernet speed with iperf. Seems good to me. (94.4Mbit/s up and down, in case the image doesn't work)
I'm using a 0.1uF instead of 1uF capacitor to ground the center tap of the transformer, but i don't think that's significant. If you happen to have a 0.1uF 0805 capacitor instead of 1uF, don't bother buying a 1uF one.
@Me-Too I've just replied to an issue on GihHub with (i hope) all the answers you need. I don't know if that one is also from you or not.
Please check it out here: https://github.com/5N44P/omega-dock-new/issues/10
If i've not answered all your question, please ask! Here or on GitHub.
And, of course, thank you to the onion team for featuring my project into the newsletter!
I'm really glad you like it!
@Douglas-Kryder and @Andrii-Petrenko if you want multiple boards i can recommend you to get them from OSHPark. They've done a really good job with v0.9, plus their boards are purple like the omega. I've already uploaded the board here. I have to remember you that the v1.0 is not tested yet, so proceed at your own risk. The same circuit with bodges works on v0.9 but you never know what can go wrong.
Also, i'm trying to contact some chinese manufacturers to get their best price for the RJ45 connector with magnetics, which is the most expensive part in the project. I'll let you know if i can get their attention and an offer for such low volume.
@Andrii-Petrenko for the lack of IOs, this wasn't my first intention with this project, but i think you can try to squeeze in some SMD .1" angled headers on the back side of the ethernet connector. Something like this
With the omega 2 you should be able to place 2x8 pins. With 3.3v and GND, that's 14 GPIOs.
On the omega 2+ there is the SD card there, so unless you somehow raise the two omega strip connectors (there is some extra pin lenght on the strips i used), you will be able to place only 1 row, giving you 6 GPIOs available, plus 3.3v and GND.