Step 1. Wire up and test the LED Panels

Transcription

1 Modified Art with LED Matrix Build Instructions LED Matrix panels incorporated into art. Step 1. Wire up and test the LED Panels First wire up the LED panels to the Arduino to ensure all is working. Connect the two middle IDC connectors together with the supplied cable. The IDC connector on the top left goes to the Arduino. Hereʼs a close up of the IDC connector in the top left that goes to the Arduino. VCC goes to the Arduino VCC GND goes to the Arduino GND DATA goes to Arduino Digital Pin 2 WR goes to Arduino Digital Pin 3 CS0 goes to Arduino Digital Pin 4 CS1 goes to Arduino Digital Pin 5

2 The 10K Potentiometer goes to Arduino Analog Pin 0. For this project, a Seeeduino was used which is just an Arduino clone. After everything is wired, download this Arduino sketch and upload to the Arduino. Youʼll also need the Arduino library for the HT1632 LED panels written by the folks at Adafruit. If all goes well, youʼll see the LED Matrix light up with the text after uploading the code to the Arduino. The potentiometer is used to toggle different text modes for the LED panels. You can see the mode changes in this part of the code: initialpot = analogread(potpin); Serial.print("initial pot value= "); Serial.println(initialPot); range = map(initialpot, 0, 1023, 0, 6); //splits it into 4 modes delay(50); switch (range) { case 0: mode = 0; writematrix("thinking", "mode"); delay(1000); case 1: mode = 1; writematrix("numbers", "mode");

3 delay(1000); } case 2: mode = 2; writematrix("conspire", "mode"); delay(1000); case 3: mode = 3; writematrix("verbage", "mode"); t = 300; //for looking up the text, start the counter at 300 delay(1000); case 4: mode = 4; writematrix("haiku", "mode"); t = 72; delay(1000); case 5: mode = 5; writematrix("maker", "mode"); t = 432; delay(1000); } //end case

4 Step 2. Permanent Installation Now use the Arduino protoshield and wire things up for a more permanent installation. I always like to hot glue down the wires just to ensure they donʼt come loose later.

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6 Apply some hot glue on the outside of the LED Matrixes, you donʼt need apply on the inside, the outside edges are good enough. Now hereʼs the tricky part. Youʼll need to experiment and find a part of your picture that the LEDs will shine through. For example in this case, the LEDs did not shine through the black part of the picture but did shine through the orange part.

7 After youʼve found a good spot, go ahead and hot glue it to the picture canvas. For an artsy effect, I left the LED panels slightly offset from one another. Youʼll also want to secure the Arduino board as well. In this case, I just hot glued the Arduino to a piece of acrylic and then glued the acrylic to the inside of the frame.

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9 Step 3. Tweak the Code for your Needs Just have a look at the code and you can see where to modify and put whatever text you want. Keep in mind that 8 characters is the maximum length and the library does not support scrolling so 8 characters is the max. The library also supports a larger font in which case the maximum characters is 4. In the code below, the first line is the text on the top half of the LED Matrix and the second line is for the text on the bottom half of the LED Matrix. Hereʼs the meaning of the third line (the ones in red). 1: A short delay with small font 2: A short delay with large font 3: A longer delay signifying a new saying (haiku in this case) has started with small font 4: A longer delay signifying a new saying (haiku in this case) has started with large font prog_char string_72[] PROGMEM = "jet lag"; prog_char string_73[] PROGMEM = "she"; prog_char string_74[] PROGMEM = "1"; prog_char string_75[] PROGMEM = "unravels"; prog_char string_76[] PROGMEM = "his half"; prog_char string_77[] PROGMEM = "1"; prog_char string_78[] PROGMEM = "finished"; prog_char string_79[] PROGMEM = "sweater"; prog_char string_80[] PROGMEM = "3"; prog_char string_81[] PROGMEM = "thoughts"; prog_char string_82[] PROGMEM = "unspool"; prog_char string_83[] PROGMEM = "1"; prog_char string_84[] PROGMEM = "with the"; prog_char string_85[] PROGMEM = "white"; prog_char string_86[] PROGMEM = "1"; prog_char string_87[] PROGMEM = " line "; prog_char string_88[] PROGMEM = "road"; prog_char string_89[] PROGMEM = "1"; prog_char string_90[] PROGMEM = "trip"; prog_char string_91[] PROGMEM = ""; prog_char string_92[] PROGMEM = "4"; prog_char string_93[] PROGMEM = "half the"; prog_char string_94[] PROGMEM = "sky a"; prog_char string_95[] PROGMEM = "1"; prog_char string_96[] PROGMEM = "deeper"; prog_char string_97[] PROGMEM = "blue"; prog_char string_98[] PROGMEM = "1"; prog_char string_99[] PROGMEM = "mid-life"; prog_char string_100[] PROGMEM = ""; prog_char string_101[] PROGMEM = "1"; prog_char string_102[] PROGMEM = "birthday"; prog_char string_103[] PROGMEM = ""; prog_char string_104[] PROGMEM = "3"; prog_char string_105[] PROGMEM = "liquid"; prog_char string_106[] PROGMEM = "sky"; prog_char string_107[] PROGMEM = "1"; prog_char string_108[] PROGMEM = "a steel"; prog_char string_109[] PROGMEM = "bucket"; prog_char string_110[] PROGMEM = "1"; prog_char string_111[] PROGMEM = "hits the"; prog_char string_112[] PROGMEM = "well"; prog_char string_113[] PROGMEM = "1"; prog_char string_114[] PROGMEM = "water"; prog_char string_115[] PROGMEM = "";

10 prog_char string_116[] PROGMEM = "3"; prog_char string_117[] PROGMEM = "end of"; prog_char string_118[] PROGMEM = ""; prog_char string_119[] PROGMEM = "1"; prog_char string_120[] PROGMEM = "day"; prog_char string_121[] PROGMEM = ""; prog_char string_122[] PROGMEM = "2"; prog_char string_123[] PROGMEM = "three"; prog_char string_124[] PROGMEM = "snails"; prog_char string_125[] PROGMEM = "1"; prog_char string_126[] PROGMEM = "devour"; prog_char string_127[] PROGMEM = ""; prog_char string_128[] PROGMEM = "1"; prog_char string_129[] PROGMEM = "one"; prog_char string_130[] PROGMEM = ""; prog_char string_131[] PROGMEM = "2"; prog_char string_132[] PROGMEM = "blossom"; prog_char string_133[] PROGMEM = ""; prog_char string_134[] PROGMEM = "3";