Abhijit Kshirsagar
2 years ago
1 changed files with 31 additions and 0 deletions
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Name Hemanth |
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1. Question text: |
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iHumidity Sensor / plants |
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2. Design summary: |
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Overall is ok- needs more details of how each component integrates. |
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For example the idea of switching off the buzzer by the attending person is good - how is it implemented? |
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That should have been shown in the block diagram! |
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3. Block diagram |
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Se above |
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4. Power supply design |
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Your power supply design assumes 2mA of sensor current but that is not necessarily the case. |
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Your supply is basically open loop and any change in batery voltage will cause change in sensor supply! |
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5. Industrial Design: |
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Not detailed enough! |
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6. KICAD Design |
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Schematic: |
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Diode D1 is backwards - your design will never get power. |
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The Opamp is conneced to a unipolar supply - it will not be able to sink current to drive the buzzer! |
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PCB: |
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Layout looks good. |
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7. Pricing / BOM / Assembly |
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Your bom sheet has a "risk rate" number. What is that? |
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