{"id":108,"date":"2008-10-09T08:54:11","date_gmt":"2008-10-09T12:54:11","guid":{"rendered":"http:\/\/itp.indiamos.com\/blog\/?p=108"},"modified":"2008-10-09T22:12:27","modified_gmt":"2008-10-10T02:12:27","slug":"physcomp-week-5-serial-out","status":"publish","type":"post","link":"https:\/\/itp.indiamos.com\/blog\/2008\/10\/09\/physcomp-week-5-serial-out\/","title":{"rendered":"PhysComp, week 5: Serial Out"},"content":{"rendered":"

\"\"<\/a><\/p>\n

I was trying<\/em> to figure out the math to make part of the graph show up as brown—i.e., earth—and then scatter flowers on top, but something wasn’t working out and I was running late, so I gave up.<\/p>\n

Anyway, here are the progress shots:<\/p>\n

Setup:
\n\"P1000190.JPG\"<\/a><\/p>\n

Pot hooked up:
\n\"P1000199.JPG\"<\/a><\/p>\n

Blinking LED:
\n\"P1000204.JPG\"<\/a><\/p>\n

I also shot a fascinating<\/em> movie of the program loading on the Arduino and starting up—you know, flickering yellow light, then blinking LED; hot stuff:<\/p>\n

Final code on Arduino:<\/p>\n

int potPin = 0;
\nint potValue = 0;
\nint ledPin = 2;<\/p>\n

void setup()
\n{
\n \/\/ flash LED three times to announce start of program
\n pinMode( 2, OUTPUT );
\n digitalWrite( 2, LOW );
\n delay( 500 );
\n digitalWrite( 2, HIGH );
\n delay( 500 );
\n digitalWrite( 2, LOW );
\n delay( 500 );
\n digitalWrite( 2, HIGH );
\n delay( 500 );
\n digitalWrite( 2, LOW );
\n delay( 500 );
\n digitalWrite( 2, HIGH );
\n delay( 500 );
\n digitalWrite( 2, LOW );
\n delay( 500 );
\n digitalWrite( 2, HIGH );<\/p>\n

\/\/ start serial port at 9600 bps:
\n Serial.begin( 9600 );
\n}<\/p>\n

void loop()
\n{
\n \/\/ read analog input, divide by 4 to fit it in the range 0-255:
\n potValue = analogRead( potPin );
\n potValue = potValue \/ 4;
\n Serial.print( potValue, BYTE );
\n \/\/ pause for 10 milliseconds:
\n delay( 10 );
\n}
\n<\/code><\/p><\/blockquote>\n

Final Processing applet<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

I was trying to figure out the math to make part of the graph show up as brown—i.e., earth—and then scatter flowers on top, but something wasn’t working out and I was running late, so I gave up. Anyway, here are the progress shots: Setup: Pot hooked up: Blinking LED: I also shot a fascinating … Continue reading PhysComp, week 5: Serial Out<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false},"categories":[12,11,4,8,6,9,10],"tags":[],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p3qY10-1K","_links":{"self":[{"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/posts\/108"}],"collection":[{"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/comments?post=108"}],"version-history":[{"count":3,"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/posts\/108\/revisions"}],"predecessor-version":[{"id":117,"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/posts\/108\/revisions\/117"}],"wp:attachment":[{"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/media?parent=108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/categories?post=108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itp.indiamos.com\/blog\/wp-json\/wp\/v2\/tags?post=108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}