# WiFi-connected Lux-sensor

This project is for building a WiFi-connected Lux-sensor for the garage. The sensor reads the lux-value once every 10 seconds, and sends the value to the server once a minute.

The sensor used is Adafruit TSL2561 with I2C-Id: 0x39

WiFi ssid and password are stored in a file called config.h, which is not commited to git but looks like this:
```c++
#define WIFI_SSID "WiFi-ssid"
#define WIFI_PASSWORD "password"
```
#### Sensor connections:
| Colour        | ESP8266           | Sensor  |
| ------------- |-------------| -----|
| Red      | +3.3V | +3.3V  |
| Black      | GND      |   GND |
| Yellow | GPIO4      |    SDA |
| Blue | GPIO5      |    SCL |


#### Useful links:  
<http://blog.abarbanell.de/arduino-esp8266/iot/i2c/>  
<https://github.com/esp8266/Arduino#documentation>  
<https://github.com/adafruit/Adafruit_TSL2561>