The scenario
Designing an environmental control system for a greenhouse that autonomously regulates temperature, lighting, and humidity based on sensor inputs.
What is in this drawing
Read the decisions behind it.
01
Choice of sensors (thermistor, photoresistor, capacitive humidity)
02
Decision to use relay-based switching for high-power actuators
03
Inclusion of flyback diodes for inductive load protection
Applicable to small-scale greenhouse automation where a PLC or microcontroller is not desired, using analog threshold detection.
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