Here is a tested Arduino project that uses 3 sensor probes as water level indicator with 3 leds and one LCD display + a simple controller that turns on a motor when the water has reached the desired ...

[CNLohr] has been tinkering with some fun parts of late. He’d found out that ordinary LCD screens could be used as simple touch sensors, and he had to try it for himself. He ended up building a little ...

CHIBA, JAPAN — Casio Computer Corp. has developed a fingerprint sensor layered on top of a 1.2-inch LCD screen, providing a convenient way for phone makers to incorporate biometric security into their ...