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Nest Learning Thermostat API

This is a PHP class that will allow you to monitor and control your Nest Learning Thermostat.

Features

  • Caching so that it doesn't re-login when it doesn't need to. i.e. faster operations.
  • Getters:
    • Current & target temparatures, humidity
    • Time to target temperature
    • Target temperature mode, fan mode
    • AC, heat, and fan status: on or off
    • Manual and automatic away mode
    • Location information
    • Network information (local & WAN IPs, MAC address, online status)
    • Currently active schedule (by day)
    • Next scheduled event
    • Last 10 days energy report
  • Setters:
    • Target temperatures (single, or range)
    • Target temperature mode: cool, heat, range
    • Fan mode: auto, on, minutes per hour
    • Fan: every day schedule (start & stop time)
    • Fan: on with timer (stops after X minutes/hours)
    • Away mode: on, off
    • Dual fuel: breakpoint (use alt. fuel when outdoor temp is below X), always alt, always primary
    • Turn off HVAC

Usage

See examples.php for details, but here's a Quick Start.

<?php

require_once('nest.class.php');

// Your Nest username and password.
define('USERNAME', '[email protected]');
define('PASSWORD', 'Something other than 1234 right?');

$nest = new Nest();

// Get the device information:
$infos = $nest->getDeviceInfo();
print_r($infos);

// Print the current temperature
printf("Current temperature: %.02f degrees %s\n", $infos->current_state->temperature, $infos->scale);

// Cool to 23
$nest->setTargetTemperatureMode(TARGET_TEMP_MODE_COOL, 23.0);

// Set Away mode
$nest->setAway(TRUE);

// Turn off Away mode
$nest->setAway(FALSE);

Example output for getDeviceInfo():

{
  "current_state": {
    "mode": "range",
    "temperature": 24.09999,
    "humidity": 42,
    "ac": false,
    "heat": false,
    "fan": true,
    "auto_away": 0,
    "manual_away": false,
    "leaf": false
  },
  "target": {
    "mode": "range",
    "temperature": [
      23,
      26
    ],
    "time_to_target": 0
  },
  "serial_number": "01AB02BA117210S5",
  "scale": "C",
  "location": "1061f350-a2f1-111e-b9eb-123e8b139117",
  "network": {
    "online": true,
    "last_connection": "2012-09-30 21:26:25",
    "wan_ip": "173.246.19.71",
    "local_ip": "192.168.1.201",
    "mac_address": "18b430046194"
  }
}

Troubleshooting

If you have any issues, try adding this at the top of your PHP script, to ask PHP to echo all errors and warnings.

error_reporting(E_ALL);

Acknowledgements

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