Aryan

Aryan/Comments.txt

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+Name Aryan
+
+1.	Question text:
+Design a system using the humidity sensor (https://drive.google.com/file/d/10Z0jvXlMJBG0_FohJ6fIrFQnS-VmN8HF/view?usp=sharing) to detect when relative humidity (RH) in a room goes falls below 30%. When this happens, an exhaust fan needs to be turned on. The device is intended for small controlled-environment chamber. If humidity falls too low it means ventilation is inadequate, and a fan needs to be turned on. The fan is a 230V 50Hz fan. Your device needs to be as small and compact as possible so as to not take up space in the chamber.
+
+2.	Design summary:
+
+	>> I have taken the output of the sensor, passed it to the opamp with +ve of the opamp at 1860 mv. Then I have passed that output to BJT which connects a. c. to the fan. Diagram and detailed explanation is given ahead.
+	Your scans are extremely hard to read!
+
+
+3.	Block diagram
+	Very hard to read and not enough detail. What are signal widths, voltage levels, etc?
+Where are the interface specifications?
+	Why is there a transformer and also a buck converter in your design?
+	
+4.	Power supply design
+	No circuit for power supply?
+	You are told that 20 sensors are needed - do you need 20 power supplies?
+
+5.	Industrial Design:
+	Why is it made of copper?
+	Your diagramming / documentation skills need improvement!
+
+6.	KICAD Design
+	Schematic:
+	
+	Unable to open any Kicad Files.
+	PCB:
+	
+7.	Pricing / BOM / Assembly
+	Seems reasonable
+