OTA Updates

System.disableUpdates()

// System.disableUpdates() example where updates are disabled
// when the device is busy.

int unlockScooter(String arg) {
  // scooter is busy, so disable updates
  System.disableUpdates();
  // ... do the unlock step
  // ...
  return 0;
}

int parkScooter(String arg) {
  // scooter is no longer busy, so enable updates
  System.enableUpdates();
  // ... do the park step
  // ...
  return 0;
}

void setup() {
  Particle.function("unlockScooter", unlockScooter);
  Particle.function("parkScooter", parkScooter);
}

Disables OTA updates on this device. An attempt to begin an OTA update from the cloud will be prevented by the device. When updates are disabled, firmware updates are not delivered to the device unless forced.

Since 1.2.0

Device OS version 1.2.0 introduced enhanced support of System.disableUpdates() and System.enableUpdates(). When running Device OS version 1.2.0 or higher, the device will notify the Device Cloud of its OTA availability, which is visible in the Console as well as queryable via the REST API. The cloud will use this information to deliver Intelligent Firmware Releases.

In addition, a cloud-side system event will be emitted when updates are disabled, particle/device/updates/enabled with a data value of false. This event is sent only if updates were not already disabled.

When updates are disabled, an attempt to send a firmware update to a device that has called System.disableUpdates() will result in the System.updatesPending() function returning true.