the 'right' board for my project, your help please
Posted: Fri Mar 17, 2017 10:39 am
Hello all,
TLDR:
temp/humidity monitoring project, to cover 22 rooms. Needs to talk over wired Ethernet (No wifi or other wireless) and have the option for battery power (or PoE) for some rooms. Total cost for the first 22 rooms has to stay under $1000. I was going to use either the sparkdata service or openhab for data collection, so something that works with MQTT.
What board do you suggest I use?
The LONG version
I am tasked with creating an inexpensive (we will get to what that means) environmental (again, definition coming) monitoring system for the entire (wait for it) building at work. If it proves useful, it will be expanded to the second building.
Inexpensive means that covering the whole building should involve an initial outlay of less than $1000.
Environmental is taken to mean temp and humidity from each room, plus the AC vent in each room (two locations in each room)
The entire building means 22 rooms.
And it needs to be wired. No wifi/zigbee/bluetooth/etc... And must be possible to be powered from a battery. And the battery needs to last a month. My first thought was to use an arduino as the boards are cheap, the sensors are cheap and the programming is easy. But the ethernet shield is expensive ($44).
While there are many other boards out there, not all/many of them have ethernet, fewer have ethernet and deep sleep capbility, and I am familiar with almost none of them beyond Pi and Arduino.
So I am turning to the community to see what your collected knowledge can bring out as the best price/feature trade off for gettign this done.
I intend to use the OpenHab or data.sparkfun.com (except run in house) to log the data and make use of it. This means MQTT, so please keep that in mind.
Thank you one and all.
(edited for typos)
TLDR:
temp/humidity monitoring project, to cover 22 rooms. Needs to talk over wired Ethernet (No wifi or other wireless) and have the option for battery power (or PoE) for some rooms. Total cost for the first 22 rooms has to stay under $1000. I was going to use either the sparkdata service or openhab for data collection, so something that works with MQTT.
What board do you suggest I use?
The LONG version
I am tasked with creating an inexpensive (we will get to what that means) environmental (again, definition coming) monitoring system for the entire (wait for it) building at work. If it proves useful, it will be expanded to the second building.
Inexpensive means that covering the whole building should involve an initial outlay of less than $1000.
Environmental is taken to mean temp and humidity from each room, plus the AC vent in each room (two locations in each room)
The entire building means 22 rooms.
And it needs to be wired. No wifi/zigbee/bluetooth/etc... And must be possible to be powered from a battery. And the battery needs to last a month. My first thought was to use an arduino as the boards are cheap, the sensors are cheap and the programming is easy. But the ethernet shield is expensive ($44).
While there are many other boards out there, not all/many of them have ethernet, fewer have ethernet and deep sleep capbility, and I am familiar with almost none of them beyond Pi and Arduino.
So I am turning to the community to see what your collected knowledge can bring out as the best price/feature trade off for gettign this done.
I intend to use the OpenHab or data.sparkfun.com (except run in house) to log the data and make use of it. This means MQTT, so please keep that in mind.
Thank you one and all.
(edited for typos)