Sintron ST-027 Smart Plug Socket - for Developer version Canada Store you need to plug it

you need to plug it in power first

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so you have to spend a lot of time to figure out how to get it to work

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Quick reference for Sintron ST-919 interface: Definition for I/O interface

Sintron ST-027 Smart Plug Socket - for Developer version Canada Store you need to plug itthis is for developer version, https: sintron smart home iot. blogspot. com 2019 07 smart plug with OTA. html for the pinout you would need: #define LED 4 #define relayPin = 12 #define setupbutton 16 Download Instruction ST 027 Supports Amazon Alexa, Google Home, iPhone Siri. ( most of others can't support Siri ), and can be used by mobile phone, PC Mac Window Linux, ( others only supports Mobile Phone), also if you are a developer, you can also use