rboard - Cheap relay/radio/arduino board ~$10

[jendrush]

Nice price. How much for shipping?

[gregl]

@jendrush

About $4 to Australia... I think my last order only took about a week....I was amazed!
I'll try remember to post back when it arrives.

[korttoma]

Nice find. Please let us now how they perform.

[gregl]

Finally got the email they are on the way....will report in when ive tested them,

[gregl]

And they just arrived... 6days ..not too bad!

Now to test!

[gregl]

Well that was easy....
Loaded up the RelayActuator sketch, changed the relay pin to 4.
It joined Vera as it should, and after providing it a 5V powersource the relay clicks on and off as commanded!

[gregl]

Now loaded up the Garage Door sketch , choosing A0 for the switch and D4 for the relay and again works straight away!

I note they also have a header for 433Mhz module and according to the schematic, the pads could be used for 5v,GND, and D3 - so could be used for another sensor such as Dallas temp....or ultrasonic/IR..anything!

Great buy for $10

ftp://imall.iteadstudio.com/Mainboard/IM140704001_mini_Rboard/SCH_IM140704001_MiniRboard.pdf

[daulagari]

Good price but a pity you still need an external 5 Volts supply...

[gregl]

Yep no getting away from the need for power! A mains version would be great, but although it only adds a few $ in electronics, getting all the approvals adds $$$. But for DIY'ers adding a phone powersupply is cheap and reasonably compact.

[korttoma]

Yeah it seems like a really nice board but it could have had access to a few more digital pins on the board.
Is it really only A0 and D3 that can be accessed other then the relay?

[Zeph]

@korttoma said:

Yeah it seems like a really nice board but it could have had access to a few more digital pins on the board.
Is it really only A0 and D3 that can be accessed other then the relay?

Looks like. Surprising that folks don't at least put a few more pins on solderable holes on boards like this, where you could put a pin or solder a wire - seems easy and takes little space.

[Homer]

Hey! my first post :-)

I read about these boards here a week or so ago, and order one to play with! Just waiting on my Vera to arrive and I'm gonna start playing :-)

[derrij]

it is possible to add hardware button to the setup and control the relay.

[hek]

@derrij

Yes, here in an example:

https://codebender.cc/sketch:47534

[Yveaux]

@hek there's no code visible on android.....

[hek]

@Yveaux

I can see it on my chrome/android.

Update: The stock browser also works.

[Yveaux]

@hek now it is working... Did you change anything?

[hek]

@Yveaux

Nope.

[Homer]

Which board do I choose when uploading a sketch to this?

[Homer]

@Homer said:

Which board do I choose when uploading a sketch to this?

It's all good, I found a website which stated what it was compatible with So I'm moving on :-)

Now I am just trying to work out how to connect a switch to the A0 pin. There are two pins so is the switch just bridging the two? Sorry, I really am trying to learn this stuff.