A simple weather station (temp, press, humid) that turns on automatically when someone stands in front of it. It lights when the illumination is poor.

The circuit consists of three main parts: the input, the output and the supply. The temperature, barometric and hygrometric sensors and the LDR form the input. The positive RGB LCD constitutes the output, while the ICs (comparators, OR gates and amplifiers), the IR proximity sensor and the voltage regulator are needed to control the supply. The description is in the attached Word file. Some of the components in the '.fzz' file aren't the ones i used in my project, as they didn't exist in the program.