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Arduino Code
Arduino and GY_21P sensor data to Thingspeak example
In this example we connect an Ethernet shield to an Arduino, we then connect a GY-21P sensor to this and we will send the values to Thingspeak
Arduino and MPL3115A2 sensor data to Thingspeak example
In this example we connect an Ethernet shield to an Arduino, we then connect a MPL3115A2 sensor to this and we will send the values to Thingspeak
Sending temperature data to ubidots from an Arduino
The SHT21 is a low cost humidity and temperature sensor. Its an I2C device so again is very simple to connect to any arduino. In this case we will send sesnor data to ubidots The SHT2x sensors contain a capacitive type humidity sensor, a…
Sending SHT31 sensor data to sparkfun using an Arduino
In this example we will take the SHt31, read the temperature and humidity and send this data to an online IoT platform, in this case we will use sparkfun data. To achieve this we will need an Arduino Uno with an Ethernet shield fitted and…
Sending BMP180 temperature data to thingspeak using an Arduino Uno and ethernet shield
In this example we will take the BMP180, read the temperature and send this data to an online IoT platform, in this case we will use Thingspeak. To achieve this we will need an Arduino Uno with an Ethernet shield fitted and then we will…
Arduino web server showing DHT11 data
In this example we will use a DHT11 sensor and display the humidity and temperature on a web page. You can use any temperature sensor but the DHT11 is fairly low cost and there are libraries written for it, it comes in modules and even if…
Arduino webserver displaying a bootstrap example
Recently I was interested to see if you could create a web page that could be stored on an SD card and using an Arduino ethernet shield display this via an IP address Initially I downloaded a free template and copied this on to my SD card…
Arduino SD Card Web Server example
The ethernet shield has an SD card fitted to it, this means that rather than having to write sketches full of html code you can create html files, put them on the sd card file system then serve them via your ARduino sketch. This is what we…
Arduino ethernet shield read switch example
In the previous examples using the Ethernet Shield for the Arduino we controlled an led and an rgb led using pins as outputs but you can also easily monitor the state of an input, in this case we will use a switch Basically it will be a web…
Control an RGB LED from a Web browser with an Arduino
This is similar to the led example but this time we attach an RGB led The example is similar to the Control an LED from a Web browser with an Arduino example, so we won't dwell on the details of that example too much but we will crack on…