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mpl-b1530u-vj74aa 

我基于SparkFun的ESP8266 Thing Dev開發板構建了整個系統。它具有USB編程接口，因此我可以輕松地將其插入并上傳新的Arduino原理圖。它還很好地映射了處理器的大多數IO引腳，因此我可以開始連接傳感器。

如果ESP8266對原板進行了一些硬件和軟件修改，它的功耗可能非常低，因此我自己編寫了一個教程，提醒我該如何做。此步驟是完全可選的，但由于整個設備在傳感器讀數之間消耗的功率很小，因此將大大延長電池壽命。

我用一塊18650 LiPo電池為該板供電，因為它們的價格便宜，而且蓄電量可觀。但是也有缺點，例如沒有過度充電或過度放電保護的事實。我修復了這一問題，增加了一個廉價的保護電路，該電路可在檢測到故障時斷開電池連接。

ESP8266真的不適用于給高于3.6V的東西供電，所以我不能只將電池直接連接到開發板上。相反，我使用降壓-升壓型DC / DC轉換器來吸收LiPo電池的可變電壓，并為整個電路提供干凈的3.3V電壓。

對于太陽能部分，我周圍有一塊10W / 12V光伏面板，非常適合這項工作。我將其連接到SunnyPoddy LiPo充電器，該充電器使用MPPT減輕能耗。

對于傳感部分，我使用了環境傳感器BME680。它幾乎可以完成所有工作，測量溫度，濕度，壓力和揮發性有機化合物。它不能測量亮度，但是我周圍有一塊MAX44009電路板，為什么不充分利用它呢。它們都通過I2C連接到ESP8266開發板。

mpl-b1530u-vj74aa IC694MDL740
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mpl-b1530u-vj74aa
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