一氧化碳报警装置设计
Worked for 15 mins 17 sec
62 days
已完成安全版 CO 报警器原理图：CO 传感器 + LMP91000 AFE + ATtiny402 + 蜂鸣器/振动/红 LED，电击输出已完全替换为安全提示输出。电气检查无 ERROR/WARNING；制造检查还提示通用电阻/电容未指定具体 MPN，量产前需要选定具体料号。
项目文件已创建：
下一步是布局前确认：这个 CR2032 版本只能做脉冲式蜂鸣/振动；如果要更响或更强振动，建议改 AAA 或小 LiPo。
62 days
Use CR2032 and optimize for low-power pulsed alerts.
Thought for 14 sec
62 days
明白，我会保留 CR2032，并把设计明确优化为低功耗、交替脉冲报警：更新功耗预算/固件说明，检查是否需要改元件属性，然后复查电气错误。
Worked for 1 min 57 sec
62 days
已按你的要求改为 CR2032 固定方案，并优化为低功耗脉冲报警：
- 保留 CR2032 直供 VBAT，无稳压器，避免静态损耗。
- 已更新 Power Budget：明确禁止蜂鸣器和振动马达同时工作，目标报警平均电流约 10–11 mA，监测平均电流目标 <100 µA。
- 已更新 Firmware Starter — ATTINY402-SSNR：蜂鸣器限制为 80 ms / 1 s，振动马达限制为 50 ms / 5 s，LED 低占空比闪烁。
- 我已检查关键连接：CR2032、220 µF bulk 电容、蜂鸣器、振动马达、MOSFET 驱动和 LMP91000/ATtiny402 电源连接都符合这个低功耗脉冲策略。
- 最近一次电气检查无 ERROR/WARNING。
剩余事项：我还没来得及把关键元件的 Role Details 全部改成“CR2032 pulsed alert”说明，也没重新跑最终的完整制造检查；目前已知通用电阻/电容仍会提示未指定具体 MPN，量产前需要选具体料号。
更新元件说明
最终 ERC/DRC
选择具体 MPN
检查 BOM 成本
保存设计说明
Reviews
A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibraryjharwinbarrozo16.4k- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
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- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- General Purpose Thick Film Standard Power and High-Power Chip Resistor 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film Features: - RMCF – standard power ratings - RMCP – high power ratings - Nickel barrier terminations standard - Power derating from 100% at 70ºC to zero at +155ºC - RoHS compliant, REACH compliant, and halogen free - AEC-Q200 compliantjharwinbarrozo1.2M
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纽扣电池供电的小型一氧化碳报警器，CO > 10 ppm 时通过蜂鸣器、振动马达和红色 LED 报警，不对人体施加电流。
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Arrow | $1.89–$2.56 |
Digi-Key | $3.20–$3.45 |
HQonline | $0.15 |
LCSC | $21.58–$25.24 |
Mouser | $9.53 |
TME | $0.12 |
Verical | $1.86–$4.25 |
Controls
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