Full carbon-based humidity sensor by handwriting electrodes and the sensitive materials on paper substrates. (© ACS) (click on image to enlarge) The researchers used a commercial pencil to fabricate ...

Waaahhh! While babies have a natural mechanism for alerting their parents that they need a diaper change, a new sensor developed by researchers at Penn State could help workers in daycares, hospitals ...

Guwahati: Developed at an extremely low cost, using pencil, paper and graphene oxide, researchers at Gauhati University claim to have built high-tech sensors, which can help farmers check humidity in ...

Everyday materials found in the kitchen, such as aluminum foil, sticky note paper, sponges and tape, have been used by a team of electrical engineers to develop a low-cost sensor that can detect ...

If you want to add humidity and temperature sensors to your home automation sensor, you can — like [Maker’s Fun Duck] did — buy some generic ones for about a buck. For a dollar, you get a little ...