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+These Wi-Fi Smart Light Switches are essentually a sonoff basic in a decora wall switch
+
+[Amazon Link](https://www.amazon.com/gp/product/B079N83NS9/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1)
+
+Unboxing:
+
+![](https://github.com/lvgeek/KS-602S/blob/master/images/IMG_0282.jpg)
+
+![](https://github.com/lvgeek/KS-602S/blob/master/images/IMG_0285.jpg)
+
+![](https://github.com/lvgeek/KS-602S/blob/master/images/IMG_0286.jpg)
+![](https://github.com/lvgeek/KS-602S/blob/master/images/IMG_0287.jpg)
+
+Header is marked GND, RXD, TXD, 3V3.
+Make sure RXD is connected to Transmit on your programmer and TXD is connected to Receive.
+Of course Ground and 3.3vdc to power unit during download.
+![](https://github.com/lvgeek/KS-602S/blob/master/images/IMG_0289.jpg)
+
+Hold the button and plug in programmer.
+I flashed with Arduino IDE and Tasmota 6.2.1.
+Device works perfectly as a Sonoff Basic