Processing Forum

Screen name:
Kim_b

Kim_b's Profile

1 Posts

1 Responses

0 Followers

Activity Trend

Last 30 days

Loading Chart...

Show:

Expanded view
List view

How to create a dynamic bar chart from arduino input

[1 Reply]
- 22-Mar-2011 02:59 AM
- Forum: Integration and Hardware
Hey all,

I am trying to make a dynamic bar chart from button presses that I detect from my Arduino. I have been looking on the internet to find any examples and I found this: http://processing.org/discourse/yabb2/YaBB.pl?num=1260496119

After some tweaking for my own project it gives me a 'dynamic bar' but it starts running without me pressing any buttons.

What do I have to do to make the program react to my button presses? Consumption is the dynamic data to be put into a bar. The data will increase with every button press.

Hopefully some one can help me getting my program to work!

Thanks in advance!

Kim

Here is my code:

Arduino
1. ...
3. int buttonRec = analogRead(buttons);
4. Serial.println(buttonRec);
6. if(buttonRec >= 745 && buttonRec <= 790) {
7. digitalWrite(ontbijtLED, HIGH);
8. updateValue(1, 1);
9. }
10. if(buttonRec >= 640 && buttonRec <= 710) {
11. analogWrite(lunchLED, 1023);
12. updateValue(1, 2);
13. }
14. if(buttonRec >= 450 && buttonRec <= 550) {
15. digitalWrite(dinerLED, HIGH);
16. updateValue(1, 3);
17. }
18. if(buttonRec >= 0 && buttonRec <= 50) {
19. digitalWrite(snackLED, HIGH);
20. updateValue(1, 4);
21. }
22. if(buttonRec > 800) {
23. digitalWrite(ontbijtLED, LOW);
24. analogWrite(lunchLED, 0);
25. digitalWrite(dinerLED, LOW);
26. digitalWrite(snackLED, LOW);
27. }
28. ...
Processing
2. import processing.serial.*;
4. Serial myPort;
6. float weight = 60.3; // kg
7. float fatPercentage = 28; //%
8. float activityLevel = 1.2;
9. float leanMass = (weight * fatPercentage)/100;
10. float BMR = 370 + (21.6 * leanMass);
11. float personalEnergy = BMR * activityLevel;
12. float consumption = 0;
14. int data;
16. void setup() {
17. size(400, 400);
19. myPort = new Serial(this, Serial.list()[0], 9600);
20. }
22. void draw() {
23. background(0);
24. fill(150);
25. rect(80, height, 80, -consumption);
26. drawGraph();
27. }
29. void drawGraph() {
31. if (myPort.available() > 0) {
32. data = myPort.read();
33. }
35. if (data >= 745 && data <= 790) {
36. // ontbijt is detected
37. consumption = consumption + ((25 * personalEnergy)/100);
38. }
39. if (data >=640 && data <= 710) {
40. // lunch is detected
41. consumption = consumption + ((30 * personalEnergy)/100);
42. }
43. if (data >= 450 && data <= 550) {
44. // diner is detected
45. consumption = consumption + ((30 * personalEnergy)/100);
46. }
47. if (data >= 0 && data <= 50); {
48. // snack is detected
49. consumption = consumption + ((5 * personalEnergy)/100);
50. }
51. if (data > 800) {
52. // no button pressed, consumption stays the same
53. consumption = consumption;
54. }
55. }

«Prev
Next »

Response title

Attachments

New to this Portal?

Activity Trend