That's half of the pins available on a classic Arduino! With this in mind, we wanted to make it easier for people to get these LCD into their projects so we devised a shield that lets you control a ...

An Arduino library for the I2C mode of ultrasonic distance sensors RCWL-1605, RCWL-1005, and probably HC-SR04P, with some extra info - ftjuh/RCWL_1X05 ...