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自制甲醛检测器 #318
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GB/T 18883-2022 规定甲醛室内标准为 1 小时平均不超过 0.08mg/m³,约 60 ppb ppb 到 mg/m³ 在线换算: https://teesing.com/en/tools/ppm-mg3-converter |
SFA30https://www.mouser.cn/new/sensirion/sensirion-sfa30-formaldehyde-sensor-module/ 特性
应用
规范
SFA30 数据手册: |
硬件部分SFA30 接口信息
SFA30 的接口为 molex 5055650701,间距 1.25mm,淘宝未搜到成品。 在立创商城找到了端子: https://item.szlcsc.com/898109.html 初步尝试压接以失败告终,1.25 的簧片、导线都太小了,很容易压断。 再次搜索淘宝后找到一家商城有货,就是价格很贵,1 根线 5 块,邮费 18,干就完了,买!https://item.taobao.com/item.htm?id=759157375740 ESP32采购于淘宝的「泽杰旗舰店」,ESP32 WROOM CH340 芯片版本的开发板。 |
软件部分采用 ESPHome 制作,配置文件参考仓库:https://github.com/Bpazy/sfa30
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请问要加上拉电阻嘛? |
我这块板不用 |
硬件: ESP32WROOM32 + SFA30
固件: ESPHome
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