https://www.kickstarter.com/projects/20 ... 66-for-iot
Smart Switch Open Source ESP8266 WIFI with Attiny85 (Arduino Bootloader), PIR Sensor for IOT & Home automation with Android App.
Features
WIFI Controlled also can connect other standard Bluetooth/Rf modules as the communication is UART based
WIFI Smart Switch can be programmed as MQTT Client
Can connect additional sensors like PIR, IR, Temperature, Humidity, Limit switch etc.
Has 5V/12V input and the Attiny85 can run at 5V or 3.3V depending on jumper position this will help while interfacing 5V sensors.
A Relay to control AC/DC Loads.
One open GPIO header with VCC and GND to connect sensors like PIR, IR etc.
12V/5V selectable input. LED for Testing with is connected to a GPIO.