I think this topic should be a sticky.
With the next batch kickstarter/indiegogo users coming I forsee a lot of can't connect/wifi/power topics, this can be a (help) topic for user facing power problems.
When I received my Omega2+ I had the problem that after 20 seconds the led went out.
I used the recommended lm1117, breadboard and wires as power supply.
After some advice on this forum, i shortened the wires from 20cm to about 5 cm each and I added a 470uF 16v Capacitor.
I finally saw the Wifi Acces point in windows so i:
Connected to Omega-xxxx (default password 12345678)
Went to 192.168.3.1 and run the setup wizard.
After setup, i did a browser refresh and immediately updated the firmware in the settings panel.
I'd like to point out the "breadboard psu" link in the first post is a really bad one.
It only has one (probably low capacitance and very cheap) capacitor in the circuit design.
This is not good for AMS1117 (or friends) linear regulator.
That regulator needs both input and output capacitor in a normal design.
To use it for an Omega 2, these capcitors have to have high enough values (I suggest 220 uF.)
For the bursty-power-demand device such as Omega 2,
you really cannot cut corner in this front in power supply department.
@youlian-troyanov you're not missing anything. The confusion is in the specifics of my design. I using the Omega mini dock and powering the unit through it's mini USB port (5 vdc) eliminating a lot of custom wiring, cabling or converters :slight_smile:
I assume that the omega does not get (enough) power from the Arduino dock. Any ideas? :)
Did you try out other USB-cables?
Also try to connect a USB connector direct on Mainboard if you use a Desktop computer with a front-controller. As longer and older the cables are, bigger is the possibility to get power loss.
Note that this thread is about Omega, not Omega 2.
Omega 2 is rather picky, consumes more power, and has the habit of demanding high instantaneous current at times when voltage cannot drop below a lower voltage threshold known as brown-out Vcc.
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