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ESP 8266 Mailbox Notifier using DeepSleep and Blynk | Arduino projects diy, Cool arduino projects, Electronics projects diy
smarthome-tricks.de - Neuer Ansatz für den Briefkasten-Sensor, mal sehen ob das länger funktioniert ☺️ #esp01 #arduino #postbox #briefkasten #sensor #deepsleep #esp8266 | Facebook
RasPiPo(st) 2 - Der Briefkasten verschickt E-Mails - Abgeschlossene Projekte - Deutsches Raspberry Pi Forum
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