Thin film wireless label with integrated temperature sensor

An ultrathin wireless label comprising:

• an interconnect layer, a microcontroller, an ultrathin battery layer, the interconnect layer providing electrical connection between the microcontroller and the battery layer, the microcontroller having a hibernation state and active state, wherein the microcontroller is configured to broadcast data at a broadcast frequency, when the microcontroller is in active state;
• a temperature sensor, integrated in the wireless label and configured to sense the temperature of the wireless label, whether the microcontroller is in active or hibernation state, the temperature sensor monitoring the temperature of the wireless label by periodically polling the temperature of the wireless label;
• wherein the microcontroller is configured to perform one or more battery saving operations comprising one or more of:
• transitioning between hibernation and active states, based on temperature readings from the temperature sensor, modulating the broadcast frequency, based at least in part on temperature readings, received from the temperature sensor, and modulating the period of the periodic temperature polling, based at least in part on the temperature readings from the temperature sensor.