Process

Sensors and parts used: 

Input: Button to trigger the temperature sensor. This lets the user control when to turn the circuit on. 

Output: signal connecting to IFTTT that sends a text to your phone when Particle publishes a certain event.

Sensor: Waterproof temperature sensor

Tea Time has two separate functions, ‘ready to drink’ and ‘getting cold’. A text saying ‘Your tea is now ready to drink’ is sent to your phone when the sensor reads temperatures ranging from 155 to 145F. Similarly a text saying ‘Your tea is getting cold’ is sent when the temperature drops below 120F. The particle connects to the IFTTT website that sends out the text message based on boolean events in the code. The events ‘readytodrink’ and ‘gettingcold’ can either be true or false, when these are triggered the text is then sent notifying the user of the situation. A button is pressed which powers the sensor and turns the circuit on.

The idea is to turn on the temperature sensor via the button on the circuit and place the temperature sensor in your tea. The user can then go off and do other activities until they receive a text saying that their tea is ready.