Summary of Web Client using Arduino
This project demonstrates how to make an HTTP request using an Arduino Ethernet shield to perform a Google search for "Arduino." The search results are displayed as HTML through the Arduino's serial monitor. The Ethernet shield connects to the Arduino via the SPI bus and requires configuration to match your network settings. The shield may include an onboard SD card controlled by digital pin 4. The Arduino is stacked beneath the Ethernet shield in the setup.
Parts used in the Arduino Ethernet Web Client Project:
- Arduino board (Shield-compatible)
- Arduino Ethernet Shield (with WizNet Ethernet controller)
- Ethernet cable
This example shows you how to make a HTTP request using an Ethernet shield. It returns a Google search for the term “Arduino”. The results of this search are viewable as HTML through your Arduino’s serial window.
Circuit
The Ethernet shield allows you to connect a WizNet Ethernet controller to the Arduino via the SPI bus. It uses pins 10, 11, 12, and 13 for the SPI connection to the WizNet. Later models of the Ethernet shield also have an SD Card on board. Digital pin 4 is used to control the slave select pin on the SD card.
The shield should be connected to a network with an ethernet cable. You will need to change the network settings in the program to correspond to your network.
image developed using Fritzing. For more circuit examples, see the Fritzing project page
In the above image, the Arduino would be stacked below the Ethernet shield.
Schematic
Code:
/* Web client This sketch connects to a website (http://www.google.com) using an Arduino Wiznet Ethernet shield.
Hardware Required
- Arduino Ethernet Shield
- Shield-compatible Arduino board
For more detail: Web Client using Arduino
