#electricians — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #electricians, aggregated by home.social.
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Just #disassembled a #smarthome #tasmota #smartplug, the Refoss P11. I bought 4 for ~43€ incl. shipping. Thats ~11€ shipped per unit for a factory flashed Tasmota device with power measurement and switching capability.
Protective earth is connected with AWG24 =~0,205mm², but resistance is low/ok. The input pins are directly soldered to the PCB.
Temperature sensor and power meter need to be manually calibrated to show reasonable values. ESP module pinout: search for tywe2s / esp-02s.
Lots of vias in the traces that carry mains voltage/current.
The input MOV got VDE printed on it. Capacitors are SAX branded. Relais is wrg rj-ss-105dm63-f, which got a datasheet with reasonable content. Contact spec in the datasheet lists 10A resistive, not 16A as printed on the relais/device.#electricians #electronics #electronicengineer is 0,205mm² ok for protective earth connection?