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33 changed files with 27 additions and 29 deletions

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Industrial Design Summary (add text in the box below or upload a PDF. Handwritten+scanned is acceptable as long as it is neat and legible.)
* Show (with labelled and dimensioned sketches) how your product will look (in the final form) as delivered to the end user. Include the enclosure, mounting etc as necessary.
* Explain in a few words what the enclosure is made of.

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Design Summary (add text in the box below or upload a PDF)
Explain how you approach this design problem.
Include your assumptions, trade-offs, with any and all design choices you make.

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Upload the block diagram of the system you have designed as a single PDF.
Hand drawn diagram is acceptable - just make sure it is neat and clearly labelled. Mark all interfaces. Make sure to include suitable power supply/supplies.

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Power Supply Summary (add text in the box below or upload a PDF. Handwritten+scanned is acceptable as long as it is neat and legible.)
* Explain your choice of your power supply. * Explain how your power supply works. Include circuit diagrams, waveforms and graphs as needed.

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Complete your entire design in Kicad, including:
* Circuit / schematic design:
* Make sure to assign the appropriate values / ratings for each component. When you select components make sure they exist on a commercial electronic platform (e.g. some are listed here: https://gitea.iitdh.ac.in/PEG/PEG-Wiki/wiki/PurchasingComponents)
* Assign appropriate footprints to each component
* Make sure to run the Electrical Rule Checker before moving to the layout.
* PCB Layout design
When you are done, export the design as a SINGLE ZIP FILE (File > Archive) and then upload the zip file here. 

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Name Pramod Reddy
1. Question text:
Amonia Sensor
2. Design summary:
Fairly well written.
Your worst case design is ok.
Could have added a calibration step / method to calibrate at known gas conc.
What happens if there is a problem with the sensor? The clean air level
should fall below 2mV and that should trigger a different warning/alarm also.
3. Block diagram
4. Power supply design
5. Industrial Design:
6. KICAD Design
Schematic:
Circuit design is ok overall. Could have added more functionality
PCB:
Layout is too loose.
Transformer need not be board mounted - too much weight.
If all your components are SMD layout could be tighter.
7. Pricing / BOM / Assembly
Final prixing?