JSON values

Michael

If you go to:
https://twine.supermechanical.com/ZZZ/rt

You get JSON that looks like:
{"gs_version": "Oct 31 2012-08:21:10", "age": 0.0002491474151611328,
"ts": 1369854336.0, "values": [["ZZZ00", "1.3.1"],
["ZZZ01", 7700], ["ZZZ03", "top"],
["ZZZ05", 55104], ["ZZZ06", 1],
["ZZZ07", 1], ["ZZZ04", 0],
["ZZZ02", 0]], "rssi": 196, "ruleset_id": "32537",
"last_poll": 1369854336.0}

where ZZZ is my twine key ID.

"ZZZ00" is firmware
"ZZZ01" is temperature * 100
"ZZZ03" is orientation
"ZZZ05" is probably voltage?
"rssi" is probably received signal strength indication (scale?)

Does anybody have a full list that they could post?

John Kestner

Not to interrupt the fun of figuring it out, but here's what it means. You can be reasonably sure that the below won't change. (Someday we'll turn this into proper documentation...)

All internal sensors, and some other Twine info, will be the Twine ID plus two digits:

00 - firmware version

01 - temperature (in hundredths of F)

02 - vibration (in milli-Gs)

03 - orientation ("top", "bottom", "left", "right", "back", "front")

04 - vibration event (0 = not triggered, 1 = triggered)

05 - battery voltage (in microvolts - if it's below 1300000µV you're almost certainly on external power - the voltage reading is tuned for batteries)

06 - not used

07 - update mode (0 = normal, 1 = fast)

External sensors each have a unique ID. When you GET https://twine.cc/sensor/(sensor ID), it will return the sensor type.

Stan Vermeulen

hi Michael,

I guess the new URL changed this too

https://twine.cc/ZZZ/rt

but, what then, where to use the ZZZ01 value?

Stan Vermeulen

already found out:

https://twine.cc/MYID/rt?cached=1

this will return an array of values, including the ID01....and so on..

Michael

Some good information can be gleaned from here:
http://twine.cc/static/js/controllers/rt2.js

e.g.

// extract power data
if (s_id == this.twine_id+'05')
    this.voltage = Math.round(msg.values[i].value/10000)/100;

// extract version
    if (s_id == this.twine_id+'00')
        this.arm_version = msg.values[i].value;

// extract fast mode
    if (s_id == this.twine_id+'07')
        this.rt_state = msg.values[i].value;

Will Luke

These were removed before, so don't expect them to stay around forever. Surprised to see they're back

Stephen Hunt

Looks like removed again - anyone have the output cached they can post?