Kalibrierungsdaten aus Original FW sichern

1. Shelly starten und mit Wlan Shelly_xxx verbinden
2. Download Datei calib.dat über die URL http://<IP shelly3em>/calib.dat

{"rms":{"current_a":3166385,"current_b":3125691,"current_c":3131983,"current_s":1756557,"voltage_a":-767262,"voltage_b":-763439,"voltage_c":-749854},"angles":{"angle0":180,"angle1":176,"angle2":176},"powers":{"totactive": {"a":-1345820,"b":-1347328,"c":-1351979}},"freq":0}

Installation der Tasmota FW

Tasmota Vorlage für Shelly 3EM eintragen und Laden.

{"NAME":"Shelly 3EM","GPIO":[1,1,288,1,32,8065,0,0,640,8064,608,224,8096,0],"FLAG":0,"BASE":18}

Neustart

Lese der aktuelle Kalibrierungsdaten, die in der FW vorhanden sind.

energyconfig

Kalibrierungsdaten in Tasmota zurück spielen über die Konsole.

energyconfig {"rms":"current_a":3166385,"current_b":3125691,"current_c":3131983,"current_s":1756557,"voltage_a":-767262,"voltage_b":-763439,"voltage_c":-749854},"angles":"angle0":180,"angle1":176,"angle2":176},"powers":{"totactive": {"a":-1345820,"b":-1347328,"c":-1351979}},"freq":0}

Neustart und fertig.