Project uses a Flyport Wi-Fi module and a Grove Nest board to update a public Thingspeak channel every thirty seconds, gauges and/or charts update in near real-time without having to refresh the page. Thingspeak limits the update frequency to one every 15 seconds, a channel can have up to 8 fields, chunks of data when downloading are limited to 8000 points, download link to channel's data in .csv format.
Click here to see a version of this page served by the Flyport hardware.