1. ECG pads provide raw skin conductivity / electrical activity as analogue data (0-5v).

2. This is plugged into the Arduino board via 4 analogue inputs (no activity = 0v, high activity = 5v).

3. The Arduino has a program burnt to itÂ’s EPROM chip that filters the signals.

4. Josh trained the program by thinking of the main Siri commands ("Call”, "Set”, "Diary” etc.) one at a time and the program where we captured the signature brain patterns they produce.

5. The program can detect the signature patterns that indicate a certain word is being thought of. The program will then wait for a natural ‘release’ in brain waves and assume the chain of commands is now complete and action is required.


6. The series of commands are fed to a SpeakJet speech synthesiser chip

7. The audio output of which simply plugs into the iPhoneÂ’s microphone jack.