Posts made by Decagrog

Bump. Still available and price lowered to 15euro

HI all,
I've to sell a couple of Onion things:
Air quality MQ153 sensor https://shop.controleverything.com/collections/gas/products/nh3-amonia-benzene-alcohol-gas-sensor
Onion Omega I2C shield with usb https://shop.controleverything.com/collections/onion-omega/products/i2c-breakout-for-onion-omega-1-and-2-with-usb-interface

Both items are never used, I sell them together for 20euro, I'm from Italy but can ship everywhere

Update: all sold to @maxim-Lezin
Sorry @Tinjaw hope there will be a next time!

@Tinjaw Thanks fo the offer, it's ok for me but I want to wait for a reply from @maxim-Lezin since he asked first...I'll let you know!

@Tinjaw I checked on the IT postage website, shipping to the US cost about 15.5€

@maxim-Lezin un pacchetto tracciabile con sda mi costa sugli 8€

@maxim-Lezin
Ciao, io sono di Genova

Hi all!
I've to sell:

• Onion Omega along with the minidock and the bluetooth dongle, they are barely used. Price 18$

• Onion Omega2 with minidock and expansion dock, all is new 25$

I someone is interested in all the bundle I can sell it for 35$ + shipping, I'm from Italy but can ship worldwide.
Let me know if you need more info!

Sold to Mark

Hi!
I've a spare Onion Omega along with the minidock and the bluetooth dongle, they are all new.
I'm selling alltogheter for 25€ + shipping, I'm from Italy but can ship worldwide.
Let me know if you need more info

Little update: for now I'm trying just to connect a light sensor read the data with i2ctools
The i2c sensor is a BH1750FVI, I'm able to retrieve the address ( 0x23 ) with i2cdetect but if I try to look for some data with i2cdump there are all zeros...I've tried to put the sensor under a light or in the dark, nothing changed.
Any guess?

@Kit-Bishop Thanks for the starting walkthrough, very informative!
Regarding my actual need I think that retrieving data from 4-5 sensors should stiil be feasible on Python even if is not very performing , but now that I see how you extended the Omega with all your libraries I'm tempted to try with C++ even if having to setup a machine (probabily a virtual machine) for compiling add more entropy on the plate.

In the meantime I lost (again, sigh!) some hours into AWS iot and...it's a mess! I mean it's globally far too complicated for a beginner and there are a pletora of services that take time just to understand what they are...so back to search for a decent iot platform with an easy learning curve

@Matthew-Hartsuch thanks for the reply
I've heard more than once good opinions about python like your friend did, this is good to know, but I'm still wondering if on the Omega there could be some sort of limits (performance? accessing to resources?) respect to c++
My project actually is a classic, an environmental monitoring with various sensors (light, temperature, humidity, gas, ect), at the end I would like an admin web panel where to have a view of all the data and set notifications and alarms.
I've a couple of esp8266 to play with, you're right they are cheap and seems fairly easily to use!

Anyway my main wall now is still to define what platform choose, it should be easy to start with, packed with web interfaces or dashboard, compatible with the Omega and with a good active community where to ask question.

I've took a look to the Eclipse IOT, seems rely mosty on java...damn another language to learn
Another free iot platform is http://www.kaaproject.org , again the sdk is based on Java, C, C++ or objective C
I've done a simple comparison on google trends and the most buzzed iot platform is the IBM one, I'm looking into it just now but to me seems kind of...enterprise centered.

The problem is how to make the right choice from a dozens of iot platform, jargon terms, different languages, interfaces, libraries, different approaches, ect...I could pass 3-4 hours every night to read about all that stuff and still not be sure witch way choose...

Hi all,

I'm trying to face with the iot world for the first time, I'm a beginner
I'm a web dev and I've a bit of hardware/electronics background so i thought to know enough to start but in reality I've passed a lot of hours reading about docs, posts, projects, codes, libraries, platforms without dioing anything productive...

I've a project on mine, is nothing fancy and in short is read values from some sensors and store the data on cloud for further analysis
Less short:

• use multiple sensors ( I2C and not )
• at first interface them directly with the onion GPIO but in future use various arduinos that will communicate with the onion (via wifi or bluetooth)
• upoad the data into the cloud (http, websocket,MQTT)?
• choosing the right iot platform for a bit of data elaboration (if necessary), storage on db and a frontend visualization

As told before I'm webdev but and only know php and a bit of js . C or C++ intimidates me so I thought about learning Python to start with...there are some limitations between the two languages on the Omega?

A couple of sensor are barebone with an analoug output, so I guess I can use a ADC or use and arduino but I not sure about the difficulties to implementing the wifi comm

For what I've understood at the moment the Onion Cloud offer just the connection and the api for interacting with it from scratch, I'm searching for an iot platform that offer already some features.
The iot platform panorama is huge and I've managed just to scrape the surface reading comparison articles like that http://www.postscapes.com/internet-of-things-platforms/ but what is the best for the Omega?

What about for example the AWS iot?
Looking the documentation seems that accept Python scripts but in general I find the whole platform hard to understand, maybe is too steep for a beginner to starting with...do you have some platform to suggest?

thanks and sorry for keep it long!