This circuit triggers a small water pump when the humidity detected by the sensor is reduced in a flower bed or potted plant. The circuit must use a source according to the driven water pump.
The 2009 project is based on the integrated circuit9 LM317T, an adjustable regulator with 3...
This is a traditional 741 configuration with gain close to 100. We found it in the December 1972...
This differentiator for the positive front of the input signal can be elaborated based on any...