Using Technology to Tell Stories, from lightbulb to Arduino

1. USING TECHNOLOGY TO TELL STORIES
FROM LIGHTBULB TO ARDUINO

2. ABOUT ME
SLAWOMIR JASINSKI
!
SLAV
!
TECHNICAL LEAD /
SOFTWARE ENGINEER
!
IMAGINATION

3. We are totally committed to being a creative agency in everything we do.
IMAGINATION
WHAT WE DO
2013 SYDNEY NEW YEAR’S EVE

4. IMAGINATION
WHAT WE DO - INTERNATIONAL FLEET REVIEW

5. IMAGINATION
WHAT WE DO - INNOVATION CENTRE SAUDI / ABU DHABI

6. Working in agency
We are not producing software
We are solving clients problems with good ideas
Delivery depends on lots of different skill sets

7. GE
GENERAL ELECTRIC
!
THOMAS EDISON

8. INCANDESCENT
LIGHT BULB
90% ENERGY GOES FOR HEATING

9. PROBLEM TO SOLVE
SHOW LEVERAGE OF ENERGY
EFFICIENT SOLUTION…
!
TO PEOPLE WHICH DON’T NEED TO
SAVE ENERGY

10. Working in Agency #2
Idea:
Show - that the same amount of energy is able
power up more LED lightbulbs then traditional
incandescent lamps.

11. “To me, ideas are worth nothing unless executed. They are just a
multiplier. Execution is worth millions.”
–Steve Jobs

12. Working in Agency #2
Idea:
Show - that the same amount of energy is able
power up more LED lightbulbs then traditional
incandescent lamps.
Execution:
A dynamo is an electrical generator that
produces power.

13. Basic sketch

14. Questions &
Experiments
Average height of visitor
View port
Usability

15. More experiments

16. More
problems to
solve
physical installation
touch screen
integration
speed measurement
light control

17. Solution - Arduino
Arduino can sense the
environment by receiving input
from a variety of sensors and can
affect its surroundings by
controlling lights, motors, and
other actuators.

18. Tasks
measure speed
communicate with PC
control lights

19. Measuring speed
wheel with holes brake sensor stripe sensor

20. Light control

21. Communication with PC

22. Prototype
Wheel with stripes and holes Sensors in place

23. Actual build
Sensor box Arduino module

24. Code
// Calculate rpm from IR sensors
void getRPM() {
if (checkSensors()) { // if sensors arnt failing
// current sensor readings
int rpm1out = rpms1[index1 - 1][0];
int rpm2out = rpms2[index2 - 1][0];
long now = micros();
//time since last sensor readings
float deltaTime1 = (float)(now - lastTime1) / 1000000;
float deltaTime2 = (float)(now - lastTime2) / 1000000;
// if time since last sensor readings is longer than the time it took for the last reading - start to ease off rpm to 0
// Needed to return rpm to 0 if the wheel stops
if (deltaTime1 > lastDeltaTime1) {
float count = constrain(EASE_TIME - (deltaTime1 - lastDeltaTime1), 0, EASE_TIME);
rpm1out = round(Easing::easeInCirc(count, 0, rpm1out, EASE_TIME));
}
if (deltaTime2 > lastDeltaTime2) {
float count = constrain(EASE_TIME - (deltaTime2 - lastDeltaTime2), 0, EASE_TIME);
rpm2out = round(Easing::easeInCirc(count, 0, rpm2out, EASE_TIME));
}
// average the two rpm readings
int rpmOut = (rpm1out + rpm2out) / 2;
// send rpm to client
char output[10];
sprintf(output, "%d", rpmOut);
sendToClient(RPM_READING, output);
} else { // if sensor is failing notify client
sendToClient(RPM_READING, 0);
char *output = "SENSOR_ERROR";
sendToClient(SENSOR_ERROR, output);
}
}

25. Work in progress

26. Work in progress

29. THANKS FOR LISTENING.
QUESTIONS ?
twitter: @slavomirj
NOT SURE IF SMART.
OR JUST GOOGLED IT