Start • System Overview • Installation & Operation • Garage Door Module • Water Level Module • Temperature Module • Hardware Design • Garage Door Sensor • Water Level Sensor • Temperature Sensor • Software Design • Improvements • Peace of Mind • Sources and PDF

SYSTEM OVERVIEW

The system’s base unit receives status data from the remote wireless sensors and acts on it appropriately. It lights an LED to alert you when an error condition exists. You can press a button for an audio report from the remote sensors. If you’re away from home, you can call the phone number connected to the base unit, enter a security code, and receive the report.

A garage door module is attached to the inside of a garage door. It transmits the door’s position to the base unit. An error message is sent if the door is open.

A water level detection module periodically transmits water level data to the base station. It sends an error message if the level is above a calibrated trip point. It uses a flexible clear vinyl tube to detect the water level. You can place the tube in a sump pump hole, bathtub, or hot tub in order to prevent overflows that can cause water damage.

A temperature module periodically takes the current temperature and compares it to upper and lower limits that you set. If the temperature is beyond either limit, the module transmits an error message to the base station; otherwise, it transmits a non-error message. The reading is also transmitted to the base station. This module allows you to monitor heating and air conditioning systems. You can also use it to monitor the temperature near water pipes.