WiFiShield The Arduino WiFi shield allows an Arduino board to connect to the internet using the WiFi library and to read and write an SD card using the SD library. The WiFi Library is included with the most recent version of the Arduino IDE. The firmware for the WiFi shield has changed in Arduino IDE 1.0.4. The WiFI library is similar to the Ethernet library and many of the function calls are the same. Connecting the Shield To use the shield, mount it on top of an Arduino board (e.g. the Uno). Digital pin 7 is used as a handshake pin between the WiFi shield and the Arduino, and should not be used. Using the Shield With Older Boards If you are using the WiFi shield with an Arduino earlier than the Uno rev3, you need to make the connection below for the board to work. Jumping 3.3V to IOREF (recommended) Soldering 3.3V to IOREF Ports on the WiFi Shield There is an onboard micro-USB connector. A FTDI connection enables serial communication with the 32UC3 for debugging purposes. Network Settings Next steps
Neural.it :: new media art, electronic music, hacktivism WAFT Basic Usage | HL1606 LED Strip The HL1606 is not a common chip for most people, so the best way to explain it is to say its basically a 74HC595 shift register. Like a '595 there is an SPI input and then there is a shift-output so you can chain them. The HL1606 has 6 outputs and they're specifically for driving LEDs. The most basic way to use them is to set each LED on or off. This means you can have up to 8 primary 'colors' on an LED: red, yellow, green, teal, blue, violet, white and black. There are some pros and cons to driving the strips this way… Pro: Very simple, easy and fast. Let's get the strip up and running using this method to start. The most important thing to remember is that you need a lot of current (power) to drive these strips, so you will need to arrange a 5V power supply. Note in the image above that the 5V can come from a separate power supply that can provide the power you need. Note that we have Latch connected to digital I/O pin #2, Clock connected to #3 and Data to #4