"What differs Power Dock 2 from the original Power Dock is that it has the Battery Level ADC that allows you to accurately monitor the voltage of your battery. Another update is that GPIOs 18 & 19 are now available on the Expansion Header!"
What does this mean in practical terms? Is the original dock fully compatible with all the expansions (relay, servo, oled, etc.)? will the GPS expansion work?
Omega2 requires solid 3.3V stable voltage output at 300mA.
And one more critical spec... power supply needs to be able to handle in-rush current during WiFi power-up without voltage drop.
That fleabay $0.99 item needs a large capacitor (I recommend 220uF 6.3V) on its input side and a large capacitor on its output side (I recommend 470uF 6.3V.) The link between that unit and Omega 2 cannot be too thin gauge (I recommend 22 ga) and definitely use soldering as opposed to using DuPoint connectors.
hi, looks interesting. I read that there is a new version coming but there was no date on that notice so my question is, do you have a new version coming or is this current board the new version you mentioned? thanks.
I don't know if you are still awaiting replies to this post from April.
Maybe you've already tried your idea and either melted the relay, or not.
Having just messed up badly with something like this myself, I urge you to be VERY CONSERVATIVE with how much current you switch with an electromagnetic relay.
Also, use an ohmmeter to measure the off-resistance of the heater you wish to switch. I don't know about heater coils, but incandescent bulbs have very low off resistance -- leading to very high turn-on currents -- that need to be taken into account when controlling them with relays.
Another approach is to control a solid state relay (of more than sufficient capacity) with your micro-controlled relay. The downside is you then have to provide the power to that loop. These things are often quite cheap and durable.
After all that - I spotted the Breadboard Dock as one of the options at ABRA Electronics (Canadian Distributor). Bought it and had it in my hands two days later. So finally answered my own question too ;-)
@Matthias-Nowak We seem to generally concur that there are some issues etc. that could be fruitfully addressed.
One final comment on all this in relation to pins 15, 16 and 17:
While these pins on the Omega and Omega2 are not exposed on the Expansion Dock, they are used on the Expansion Dock for control of the expansion LED:
Pin 15 - LED blue
Pin 16 - LED green
Pin 17 - LED red
However, note also that with the Power Dock there is no LED and so these pins are neither used nor exposed. It seems a shame to have 3 pins not exposed just to control an onboard LED that isn't always available
But I REALLY wish I could flash it with an OS one day, like, I don't know, debian server???
You quite certainly can. But what services are you REALLY interested in? You haven't mentioned it. Maybe those specific ones have already been compiled for an ARM processor. A system does NOT need to be labeled Debian to be a Linux Server system.
@Flemming-Richter i dont have the time right now to work on them and also forgot about them because i got a different project running too. but i will probably check back this summer, so it will take time