Sonoff S26 firmware with the Blynk support * Open the project in MS Code (Platform IO), compile and flash the firmware https://tasmota.github.io/docs/devices/Sonoff-S26-Smart-Socket/ * Plug in and power up your S26 Socket. * Wait 5 secconds and then pres the button on you S26 Socket several times until the LED gows green. (you have 1 minute to do that) * Unplug the socket from the power and plug it again. The LED will remain green. * Connect to WiFi with SSID: "SonoffS26(8)" Password: "SonoffFwSux" * Configure your WiFi connection credentials, Blynk server IP (I call it collector for some reason) and the Blynk token - https only! (no http support, it's not safe) - keep the collector field empty to use the default public blynk servers - you can keep the fingerprint field empty. It will be filled automatically after the first connection. - if you use the custom Blynk server, it must maintain the constant certificate all the time - if you have a problem configuring your own blynk server with HTTPS, you can try my patched one that'll make it a little bit easier for you. https://github.com/smrt28/blynk-server * Save and restart * Configure the socket Blynk device on virtual pin V1. (Use Button in switch mode)