Data logging device

A data logging device comprises:

• an antenna;
• a battery;
• an activation circuit operable to produce a first activation signal in response to detecting a user action of touch, detecting a user removal of a circuit short, or receiving a wireless signal to generate the first activation signal;
• an integrated circuit die that includes:
• a power source module operable to couple to the battery in response the first activation signal, wherein, when coupled to the battery, the power source module generates a supply voltage, wherein, in response to the first activation signal, the data logging device is in a sleep mode;
• a processing module operably coupled to:
• transition mode of the data logging device from the sleep mode to a ready mode in response to one or more activation commands;
• transition the mode of the data logging device from the ready mode to a logging mode in response to another activation command;
• in the logging mode;
• generate a log command to transition the data logging device to a sample mode;
• in the sample mode, receive digital sensed data representing an environmental condition;
• determine whether the digital sensed data triggers an environmental violation;
• and
• when the digital sensed data triggers the environmental violation, generate an environmental violation signal;
• and
• return to the data logging device to the ready mode when the digital sensed data does not trigger the environmental violation;
• an environmental indicator interface;
• and
• an environmental sensor interface;
• a radio frequency (RF) transceiver operable to transceive RF signals when coupled to the antenna;
• an environmental sensor operably coupled to the environmental sensor interface and, when coupled, is operable to sense an environmental condition associated with the data logging device in response to a log command to produce the digital sensed data;
• and
• an environmental indicator operably coupled to the environmental indicator interface and, when coupled is operable to provide a visual indication of the environmental violation based on the environmental violation signal.