Lesson 4 - Arduino/Pure Data

Monday 27^th February – Project proposal

o   No more than two sides of A4

o   Must include both text and image to provide visualisation

o   Format:

§  All group members names

§  Initial working title

§  Summary of the proposed project in 500 words or less

§  Presentation intentions – how is the project to be experienced by its audience? Is it an installation, app, etc.

§  Visualisation – it could be your own work or an appropriate image from your research

§  Key references – other practitioners, films, books, etc. Include material of genuine influence

Arduino

·      Digital pins/analogue pins

·      5V or 3.3V – must be careful as components can be damaged if using the wrong voltage

·      Upload using USB cable

·      Runs program over and over again if connected to power – no on/off switch

Connecting Arduino to Pure Data

·      Make serial connection to link Arduino to Pure Data

o   Redirect so that the data goes to Pure Data rather than the serial monitor

·      Tell the program that you’re initialising a serial connection in the setup

·      You need the programs to communicate at the same speed – bps match on each program

·      If part of the code is greyed out, it is not going to work – you can use this to temporarily remove part of the code – grey a code out by adding // at the start of the line

·      “serial.write” sends bites of the data to Pure Data, tell the program what it is going to send in the brackets afterwards i.e. serial.write(OutputValue);

·      If code is orange, it is recognised 

·      Open Pure Data, and open the comport template

·      The devices box will open a pop up containing all the available devices, including the Arduino device

·      Different components:

o   Moisture sensor – detects moisture in soil

o   Force sensor – senses pressure 

o   Stretch sensor – small arduinos that can be stitched into clothes etc. 

o   Accelerometer – detects orientation

o   Pulse sensor – measures heart rate

·      Additional shields to slot onto Arduino:

o   RFID reader – reads cards etc. with RFID chips in (i.e. uni card, contactless card), can be embedded into objects easily

o   GSM shield – mobile phone shield – put sim card in, connect to Arduino, it can send and receive text messages, calls etc.

o   Motor controller shield – used to make robotic elements