7b09f6d Feb 8, 2016
1 contributor

Users who have contributed to this file

118 lines (80 sloc) 4.29 KB

Back to SmartThings Projects


Please note that frequent polling of some devices (particularly Zigbee and Z-Wave) may cause network congestion and lead to degraded system performance. Therefore, polling rate faster than 5 minutes is not recommended. The author of this software bears no responsibility for your system performance. Use it at your own risk.

Many SmartThings devices rely on frequent polling to update their status periodically. These devices have 'polling' capability and implement 'poll' command that the SmartThings polling engine calls approximately every 10 minutes. The polling rate is not user-configurable and may not be frequent enough for some devices. Also, the SmartThings polling engine has been known to have bad days now and then, when it works intermittently or stops working for hours or even days.

Here comes Pollster to the rescue! Pollster works behind the scenes and periodically calls 'poll' or 'refresh' command for selected devices. Devices can be arranged into four groups with independently configurable polling intervals. The polling interval can be as short as one minute.

Pollster Screenshot

If you like this app, please consider supporting its development by making a donation via PayPal.



  1. Self-publish Pollster SmartApp by creating a new SmartApp in the SmartThings IDE and pasting the source code in the "From Code" tab. Please refer to the SmartThings Developer Documentation for more information.

  2. Open SmartThings mobile app and locate "Pollster" SmartApp in the "My Apps" section of the Marketplace.

Revision History

Version 1.5.0. Released 2/8/2016

  • Added polling via REST API endpoint. Note: you have to enable OAuth in the IDE to use this feature. The access point URL can be found in the Installed SmartApp properties in the IDE.

Version 1.4.2. Released 1/23/2016

  • Work around UndeclaredThrowableException thrown by unschedule().

Version 1.4.1. Released 1/19/2016

  • Four polling groups.
  • Execute watchdog process upon app touch and location events (sunrise, sunset or mode change).
  • Watchdog process will restart Pollster if any of the polling schedules is late by 10 minutes or more.
  • Don't use "hideable" section attribute due to UI rendering bug.

Version 1.3.1. Released 10/4/2015

  • Disabled push notification on restart.
  • Made 'About' section hidden by default.

Version 1.3. Released 8/29/2015

  • Added watchdog feature. Watchdog task runs every 15 minutes and checks to see that the polling tasks are running. If watchdog detects that one of the polling tasks has stopped, it will send a notification message and attempt to restart Pollster.
  • The number of polling groups is reduced to three. The fourth scheduling slot is reserved for the watchdog.
  • Fixed a bug in the "Poll Now" feature.
  • Randomized seconds in the cron schedules.

Version 1.2. Released 2/8/2015

  • Added ability to update devices that provide 'refresh' capability.
  • Added "Poll Now" feature. You can now start the poll manually by touching the app icon.

Version 1.1. Released 8/23/2014

  • Devices can be arranged into 4 polling groups with different polling interval.

Version 1.0. Released 7/14/2014

  • Published to SmartThings shared apps directory.


Copyright © 2014

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at:

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.