here is some code for static text display using the Teensy OctoWS2811 library
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#include "OctoWS2811.h" //this code displays a static text message to octows2811 led array //mortonkopf //fixed values for octoWS2811 const int ledsPerStrip = 34; DMAMEM int displayMemory[ledsPerStrip*6]; int drawingMemory[ledsPerStrip*6]; const int config = WS2811_GRB | WS2811_800kHz; OctoWS2811 leds(ledsPerStrip, displayMemory, drawingMemory, config); //=== F O N T ===// /*for ease of reading the code the font could be placed under a seperate tab using the add tab and then using #include*/ byte alphabets [96] [5] = { { 0x00, 0x00, 0x00, 0x00, 0x00 }, // space (0x20) { 0x00, 0x00, 0x2F, 0x00, 0x00 }, // ! { 0x00, 0x07, 0x00, 0x07, 0x00 }, // " { 0x14, 0x7F, 0x14, 0x7F, 0x14 }, // # { 0x24, 0x2A, 0x7F, 0x2A, 0x12 }, // $ { 0x23, 0x13, 0x08, 0x64, 0x62 }, // % { 0x36, 0x49, 0x55, 0x22, 0x50 }, // & { 0x00, 0x05, 0x03, 0x00, 0x00 }, // ' { 0x00, 0x1C, 0x22, 0x41, 0x00 }, // ( { 0x00, 0x41, 0x22, 0x1C, 0x00 }, // ( { 0x14, 0x08, 0x3E, 0x08, 0x14 }, // * { 0x08, 0x08, 0x3E, 0x08, 0x08 }, // + { 0x00, 0x50, 0x30, 0x00, 0x00 }, // , { 0x08, 0x08, 0x08, 0x08, 0x08 }, // - { 0x00, 0x30, 0x30, 0x00, 0x00 }, // . { 0x20, 0x10, 0x08, 0x04, 0x02 }, // / { 0x3E, 0x51, 0x49, 0x45, 0x3E }, // 0 (0x30) { 0x00, 0x42, 0x7F, 0x40, 0x00 }, // 1 { 0x42, 0x61, 0x51, 0x49, 0x46 }, // 2 { 0x21, 0x41, 0x45, 0x4B, 0x31 }, // 3 { 0x18, 0x14, 0x12, 0x7F, 0x10 }, // 4 { 0x27, 0x45, 0x45, 0x45, 0x39 }, // 5 { 0x3C, 0x4A, 0x49, 0x49, 0x30 }, // 6 { 0x01, 0x71, 0x09, 0x05, 0x03 }, // 7 { 0x36, 0x49, 0x49, 0x49, 0x36 }, // 8 { 0x06, 0x49, 0x49, 0x29, 0x1E }, // 9 { 0x00, 0x36, 0x36, 0x00, 0x00 }, // : { 0x00, 0x56, 0x36, 0x00, 0x00 }, // ; { 0x08, 0x14, 0x22, 0x41, 0x00 }, // < { 0x14, 0x14, 0x14, 0x14, 0x14 }, // = { 0x00, 0x41, 0x22, 0x14, 0x08 }, // > { 0x02, 0x01, 0x51, 0x09, 0x06 }, // ? { 0x32, 0x49, 0x79, 0x41, 0x3E }, // @ (0x40) { 0x7E, 0x11, 0x11, 0x11, 0x7E }, // A { 0x7F, 0x49, 0x49, 0x49, 0x36 }, // B { 0x3E, 0x41, 0x41, 0x41, 0x22 }, // C { 0x7F, 0x41, 0x41, 0x22, 0x1C }, // D { 0x7F, 0x49, 0x49, 0x49, 0x41 }, // E { 0x7F, 0x09, 0x09, 0x09, 0x01 }, // F { 0x3E, 0x41, 0x49, 0x49, 0x7A }, // G { 0x7F, 0x08, 0x08, 0x08, 0x7F }, // H { 0x00, 0x41, 0x7F, 0x41, 0x00 }, // I { 0x20, 0x40, 0x41, 0x3F, 0x01 }, // J { 0x7F, 0x08, 0x14, 0x22, 0x41 }, // K { 0x7F, 0x40, 0x40, 0x40, 0x40 }, // L { 0x7F, 0x02, 0x0C, 0x02, 0x7F }, // M { 0x7F, 0x04, 0x08, 0x10, 0x7F }, // N { 0x3E, 0x41, 0x41, 0x41, 0x3E }, // O { 0x7F, 0x09, 0x09, 0x09, 0x06 }, // P (0x50) //edited - replace 0x3F with 0x7F { 0x3E, 0x41, 0x51, 0x21, 0x5E }, // Q { 0x7F, 0x09, 0x19, 0x29, 0x46 }, // R { 0x46, 0x49, 0x49, 0x49, 0x31 }, // S { 0x01, 0x01, 0x7F, 0x01, 0x01 }, // T { 0x3F, 0x40, 0x40, 0x40, 0x3F }, // U { 0x1F, 0x20, 0x40, 0x20, 0x1F }, // V { 0x3F, 0x40, 0x30, 0x40, 0x3F }, // W { 0x63, 0x14, 0x08, 0x14, 0x63 }, // X { 0x07, 0x08, 0x70, 0x08, 0x07 }, // Y { 0x61, 0x51, 0x49, 0x45, 0x43 }, // Z { 0x00, 0x7F, 0x41, 0x41, 0x00 }, // [ { 0x02, 0x04, 0x08, 0x10, 0x20 }, // backslash { 0x00, 0x41, 0x41, 0x7F, 0x00 }, // ] { 0x04, 0x02, 0x01, 0x02, 0x04 }, // ^ { 0x40, 0x40, 0x40, 0x40, 0x40 }, // _ { 0x00, 0x01, 0x02, 0x04, 0x00 }, // ` (0x60) { 0x20, 0x54, 0x54, 0x54, 0x78 }, // a { 0x7F, 0x50, 0x48, 0x48, 0x30 }, // b { 0x38, 0x44, 0x44, 0x44, 0x20 }, // c { 0x38, 0x44, 0x44, 0x48, 0x7F }, // d { 0x38, 0x54, 0x54, 0x54, 0x18 }, // e { 0x08, 0x7E, 0x09, 0x01, 0x02 }, // f { 0x0C, 0x52, 0x52, 0x52, 0x3E }, // g { 0x7F, 0x08, 0x04, 0x04, 0x78 }, // h { 0x00, 0x44, 0x7D, 0x40, 0x00 }, // i { 0x20, 0x40, 0x44, 0x3D, 0x00 }, // j { 0x7F, 0x10, 0x28, 0x44, 0x00 }, // k { 0x00, 0x41, 0x7F, 0x40, 0x00 }, // l { 0x7C, 0x04, 0x18, 0x04, 0x78 }, // m { 0x7C, 0x08, 0x04, 0x04, 0x78 }, // n { 0x38, 0x44, 0x44, 0x44, 0x38 }, // o { 0x7C, 0x14, 0x14, 0x14, 0x08 }, // p (0x70) { 0x08, 0x14, 0x14, 0x08, 0x7C }, // q { 0x7C, 0x08, 0x04, 0x04, 0x08 }, // r { 0x48, 0x54, 0x54, 0x54, 0x20 }, // s { 0x04, 0x3F, 0x44, 0x40, 0x20 }, // t { 0x3C, 0x40, 0x40, 0x20, 0x7C }, // u { 0x1C, 0x20, 0x40, 0x20, 0x1C }, // v { 0x3C, 0x40, 0x30, 0x40, 0x3C }, // w { 0x44, 0x28, 0x10, 0x28, 0x44 }, // x { 0x0C, 0x50, 0x50, 0x50, 0x3C }, // y { 0x44, 0x64, 0x54, 0x4C, 0x44 }, // z { 0x00, 0x08, 0x36, 0x41, 0x00 }, // { { 0x00, 0x00, 0x7F, 0x00, 0x00 }, // | { 0x00, 0x41, 0x36, 0x08, 0x00 }, // } { 0x30, 0x08, 0x10, 0x20, 0x18 }, // ~ { 0x7F, 0x55, 0x49, 0x55, 0x7F } // unknown char (0x7F) };//==end of font array==// unsigned int Color(byte r, byte g, byte b); //fixed values for scrolling text String inData = ""; int rows = 8; int strip = ledsPerStrip; //strip length //int pix[8] = {strip - 1, (strip * 2) - 1, (strip * 3) - 1, (strip * 4) - 1, (strip * 5) - 1, (strip * 6) - 1, (strip * 7) - 1, (strip * 8) - 1}; int del = 7; //#define BLACK 0x000000 //#define RED 0xFF0000 int Colour1 = Color(random(1, 100), random(1, 100), random(1, 100)); char msg[] = "Hello";//using a character lookup table for alphabet. # $ @ * etc... "; char leng[5];// =number of chars void setup() { leds.begin(); // start the ws2811 library delay(200); }//==end of setup==// void loop() { texttest(msg); }//==end of loop==// void texttest(char msg[]) { //==Start of message setup==// for (unsigned int charIndex = 0; charIndex < (sizeof(leng)); charIndex++) //start of charIndex setup { int alphabetIndex = msg[charIndex] - ' '; //where are we in the message if (alphabetIndex < 0) alphabetIndex = 0; bool isOn = 0; //isOn is the bit / led //==START OF SET METHOD==// for(int letterCol =0; letterCol<6-1;letterCol++) { for (int row = 0; row < rows ; row++) { isOn = bitRead( alphabets[alphabetIndex][letterCol], row ) == 1; leds.setPixel((row*ledsPerStrip)+(letterCol+(charIndex*5)), isOn * Colour1); } }//end of Set Method }//end of message setup leds.show(); delay(300); }//end of texttest //------- HELPER FUNCTION------// // Create a 24 bit color value from R,G,B ////these strips are BRG unsigned int Color(byte r, byte g, byte b) { //Take the lowest 8 bits of each value and append them end to end return ( (((unsigned int)g & 0x1F ) << 16) | (((unsigned int)b & 0x1F) << 8) | ((unsigned int)r & 0x1F) ); } |