The Mini-Light Sensor is part of the Sensible Living family of wireless sensors. I have these in the basement and the garage. Both places where I can forget to turn off the lights and may not notice for a day or more. The module is typically attached to a wall (using the included adhesive Velcro pad) or stands on a shelf in a room where you want to monitor the room light. The Mini- Light sensor should operate for more than a year on a single coin cell battery. Like the rest of the Sensible Living sensor family it is designed as a low power, battery operated, sensor that sleeps most of the time and wakes up once per hour (default setting) and updates its status. The Sensible Living Receiver and Desktop application are designed to work with the Mini- Light Sensor. The Desktop App can then be configured to send you a message if the lights have been left on too long.

Also available on this site:

• Receiver
• Mini-Plant Sensor
• Mini-Temperature Monitor
• Mini-Water leak detector
• Mini-Tilt Sensor
• Mini-Light Sensor
• Mini-General Purpose Sensor
• Temperature and Humidity Monitor
• Refrigerator/freezer temperature monitor
• Quad AC Current monitor (monitors up to four circuits simultaneously)
• Wireless MQ2 Combustible Gas sensor
• General Purpose Sensor board
• Motion Sensor
• Range Extender

Why did you make it?

From time to time I have forgotten to turn off the lights in the basement (in my case it’s a large enclosed storage space under the house where I keep lawn and garden equipment). All of my sensors were built to address specific needs around my home and for my family.

Arduino Enthusiasts

If you are interested in playing with wireless sensors this is an inexpensive and easy way to get started. These sensors are ATTIny85 based. They are a little more difficult to program than their bigger brothers (no monitor or boot loader) but still simple once you get the hang of it. I use the USBTinyISP from Sparkfun ™ to program them and the ATTINY85 (External 8MHZ clock) board package. Contact me for schematics and sketches or for more information.