Have you ever wondered what is the fastest way to get Array with unique items?
I've got Pine64 Single Board Computer (the first generation) and it has not so low memory, compared to Raspberry Pi, mine has 2GB. But still, when having there Prometheus.io, Nextcloud and rTorrent (with ruTorrent for web interface), plus samba share, it suddenly isn't that much, those 2GB of memory.
I want to track and graph everything, which includes power consumption in my flat. But checking and regularly values and writing them down in spreadsheet is tiresome. Then I found this guide and after some modifications I've managed to collect actual power consumption, send it to Prometheus and see graphs in Grafana.
LIFX bulbs are great, but when you just need to turn them on, off or just change brightness, it can be not very comfortable, to do this simple task by app. So I decided to create much simpler way to do this. And then I came across NodeMCU, small development board similar to Arduino with integrated Wi-Fi, with cost of about $5.
Project LIFX: The Light Bulb Reinvented has collected in november 2012 more than $1.3 million (goal set to 100 thousand). It's goal was to manufacture RGB-W LED bulbs LIFX, which you can control via WiFi. Author promised, they'll be ready in march 2013, but path to the final product was more difficult than expected. My 4 bulbs arrived in february 2014, so I've had to wait 15 months, but it was worth it.
Problem: When ajax request has cache off it always creates request with timestamp e.g.
_=1456134256000, and as it is get parameter, views are called and Drupal cache is not hit. And when cache is on, request is made without timestamp, and browser returns data from it's cache, so it doesn't hit server. What I needed is that script gets past browser cache, but hits Drupal cache.