Would there be a way to log time/date, temp, humidity say every 6 or 12 hours and be network connected.  Then display data via web server?

I see there are Arduino plans that will be a web server with the current info.  
But none that I can find, do a logging trend view.


I'm looking for an easy way to see monthly trends of building temp humidity sensor readings from a web browser.
Like a heads up for maintenance needed due to boiler, steam, water leaks etc. within an old large building with nasty utility crawl spaces.
I could see where deploying a few of these devices for a maintenance department could be extremely helpful.

I've yet to dabble with Arduino but this seems like a solid practical application worthy of doing.

I would look at the Arduinos made by particle.io
They have Wifi built into them. Then there are ways to use ifttt.com to push your data into Google Sheets and graph through that.

Go with a nodeMcu. You can use the arduino libraries to program them, but they’ve got an onboard Wi-Fi chip and a great deal more capability than the arduino.

I am doing that exact thing. I have an arduino running software i wrote. its hooked to a temp/humd sensor outside. It broadcasts once a minute using LORA on 900mhz. I have a receiver hooked to a raspberry pi which receives and acknowledges, logs it to an sqlite database and runs a webserver.

http://foxxz.net/weather

Its been running for 2 years off a set of D cells

Some of the above suggestions are probably easier for you to use some of the particle stuff that is web connected.


ETA - A receiver and display I built from a watt meter I fried.

Yes, either nodeMcu or a more powerful but still really inexpensive (like $7.00 each for the basic board) ESP32 system that also can have built-in bluetooth LE.

For example, here's an article (from a site that has lots of similar how-to articles and tutorials) on using an ESP32 or ESP8266 (nodeMcu) board to capture sensor readings, plot the readings on a chart, and serve that from a 'built-in' web server:

https://randomnerdtutorials.com/esp32-esp8266-plot-chart-web-server/

An overview video from that link:

Everything you want is available off the shelf.

Dragino LHT65 Temperature & Humidity sensor

Get a gateway and you're done with the hardware part.

I'm a big fan of the ESP8266 -- they're great little devices.  Also, you can load them up with firmware that makes them an Apple homekit compatible device.