And to that end, we present his IoT toilet sheet tracker. His 3D printed roll holder has a Hall effect sensor that counts revolutions of the roll and sends it to a NodeMCU. The number of sheets ...

People spend roughly 80% of their lives inside buildings—whether at restaurants, offices, hospitals, schools, airports, ...

Our first impression of this IoT toilet paper roll was that somebody ... and an accelerometer for motion detection was a bonus. The smart spindle can tally the amount of paper used, so you ...