NXP

user Occupation hasn't been added

Company Logo NXP Semiconductors


  • Automatic Plant Waterer

  • Created: Feb 11, 2014

    • view1260
    • comment0
    • bookmark0
    • fork0

Description

No description available.

Summary

The unit consists of a sensor, timer, and electric water pump. The sensor is embedded in the soil, and when dry, the electronics operate the water pump for a preset time. When the resistance across the probe increases beyond a set value (i.e., the soil dries), the Schmitt is triggered. C2 feeds a negative going pulse to the monostable when the Schmitt triggers and R2 acts as feedback, to ensure a fast switching action.

Details


Components:

  • No components added

Tags:

Application:

Type:

Document Support:

- None