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@ip_cam_talker is the same circuit but a different R1 resistor. This is an AC optocoupler. You have to maintain the supported current for the optocoupler's input (see attached data sheet) without exceeding the maximum (50mA is the maximum supported according the data sheet but you must use...

Thanks @David L and @pete_c . It's a good idea to have a sub-section for Hikvision Doorbell automation/integrations. For now I have an automation in Home Assistant to cast a bell sound to all my Google Home devices, send me a Telegram message with a photo from my front door and, I planning add...

Hi, I share my functional scheme for the video doorbell ESP-01S monitor, based on Frenck tutorial: DIY Smart Doorbell for just $2, no soldering required, but using a 16 VAC transformer and without relay. Is this information useful for post 101 or do you find a mistake , @David L ? ESPHome...

Thank you very much @pete_c , this is great! First, I'll try with this schema, because I have ready the ESP-01S. For me using the PIR is a bad idea, because I live in an apartment building and my neighbor's door is close to my entrance door. Greatings!

Thank you @pete_c. Your project is very interesting. I have the same ESP board-relay flashed with Esphome, with the Frenck's code. I'm wondering if the attached schema is correct? I'm worried about the voltage that the GPIO PIN 2 receive. What do you think?

Hi, Can you post a picture with the schema to connecting from the HIKVISION DOORBELL 101 to the "Frenck relay", please? I have a 16V AC 10A transfomer with a mechanical chime , but Frenck used a 8 V DC transformer. Thank you.

Hi, Can you show a picture with the connection from the video doorbell to the "Frenck" relay, please? Thank you