We have the value and the trend. I’m interested in knowing how current the reported value is.
The Dexcom itself is on a 5-minute clock, but the precise firing time is known only to the transmitter. Then it takes a few seconds to drunk-walk around the cloud before my follower sees it.
Thus if I trigger my poll every 5m at say 23:01:24 and the data doesn’t show up until 23:01:27, I get five-minute old data. Instead to current TOD I want to be able to show the timestamp on my Pi OLED display.