BitBastelei #321 - WLAN-Stromzähler mit Modbus, ESP8266/Arduino und SDM120

BitBastelei February 17, 2019
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BitBastelei - Elektro- und PC-Basteleien - Chaos garantiert Weitere Informationen, Downloads & Co finden sich auf der zugehörigen Webseite, welche im Header verlinkt ist. Impressum: BitBastelei // Adlerweb Florian Knodt Im Teich 11 56648 Saffig (GPG: 0xc374b04a1a1ef2da (0x1A1EF2DA) Aktuelle elektronische Kontaktmöglichkeiten finden Sie auf unserer Homepage. Bitte verwenden Sie, wenn immer möglich, verschlüsselte Kanäle. Bitte beachten Sie, dass eine elektronische Kommunikation störanfällig ist - wenn Sie auf eine zuverlässige Übertragung Wert legen verwenden sie bitte Einschreiben o.Ä. Achtung: An der Adresse werden keine Pakete entgegengenommen, für Waren o.Ä. bitte vorab Kontakt aufnehmen.

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Vor einiger Zeit hatte ich mir einen Messwandlerzähler besorgt, welcher beim Thema Stromnetzanalyse deutlich mehr Daten als mein bisheriger S0-Zähler liefern sollte. Die digitale Schnittstelle dazu nennt sich "Modbus" und basiert auf RS485. Um mich damit vertraut zu machen habe ich mir einen kleineren, einphasigen Modbus-Zähler geschnappt und mir angesehen was notwendig ist um diesen mit einem ESP8266 zu verbinden. Verwendete Library: https://github.com/reaper7/SDM_Energy_Meter

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