2 #+OPTIONS: num:nil ^:nil
5 The collector is a small utility which can be included in your
6 sketches to allow printing directly back to a central observer
7 (probably your laptop) through a virtual face. The following example
8 sketch (included as =sketch.pde= in this repository) demonstrates it's
14 * Sketch description: Simple demonstration of the collector
16 * Sketch author: Eric Schulte
19 #include "collector.h" // include the collector
20 int cface; // the virtual face assigned to the
22 int ledPin = 13; // LED connected to digital pin 13
23 int wait; // a variable for the delay time
26 cface = collector_init(); // initialize the collector and assign
31 wait = random(2000); // set wait to a random number
32 delay(wait); // wait for the assigned time
33 digitalWrite(ledPin, LOW); // sets the LED on
34 // print to the collector face and the result will be automatically
35 // routed to your laptop
36 facePrintf(cface, "waited %d miliseconds\n", wait);
37 delay(500); // wait for the assigned time
38 digitalWrite(ledPin, HIGH); // sets the LED off
42 Once this sketch has burned to your boards, you send a =c=-packet
43 (=c2= in the example below) telling your boards that you will be the
44 collector. Each =c=-packet should contain a number -- boards keep
45 track of the highest =c=-number they have received and will ignore any
46 =c=-packets with lower numbers. Once the boards receive this
47 =c=-packet their collector face will be connected to the sender of the
48 =c=-packet. this is should in the following output of the above
52 Ln 11.602 [Sending checksum South for 0x10014+32748=AAD8E8E5-86FBCC66]
53 Ln 16.257 [Sending checksum North for 0x18000+12204=A3E9651E-194595F0]
54 Ln 17.953 [Sending checksum South for 0x18000+12204=A3E9651E-194595F0]
55 Ln 19.283 [North burned successfully!]
56 Ln 20.985 [South burned successfully!]
58 (-1,1) waited 1349 miliseconds
59 (0,0) waited 3888 miliseconds
60 (1,-1) waited 2374 miliseconds
61 (1,0) waited 4205 miliseconds
62 (-1,-1) waited 2570 miliseconds
63 (1,1) waited 2540 miliseconds
64 (-1,0) waited 3334 miliseconds
65 (1,1) waited 1485 miliseconds
66 (0,0) waited 2455 miliseconds
67 (-1,1) waited 4452 miliseconds
68 (-1,-1) waited 3534 miliseconds
69 (1,0) waited 3948 miliseconds
70 (1,-1) waited 4650 miliseconds
71 (1,-1) waited 430 miliseconds
72 (-1,0) waited 4916 miliseconds
73 (1,-1) waited 464 miliseconds
74 (0,0) waited 3712 miliseconds