Breadboard for "LCD - Runner 20x4"
Fritzing diagram: lcd-runner-20x4.fzz
Run this example from the command line with:
node eg/lcd-runner-20x4.js
var five = require("johnny-five");
var board = new five.Board();
board.on("ready", function() {
var lcd = new five.LCD({
// LCD pin name RS EN DB4 DB5 DB6 DB7
// Arduino pin # 7 8 9 10 11 12
pins: [7, 8, 9, 10, 11, 12],
rows: 4,
cols: 20
});
var frame = 1;
var frames = [":runninga:", ":runningb:"];
var col = 0;
var row = 0;
// These calls will store the "runninga" and "runningb"
// characters in the LCD's built-in memory. The LCD
// allows up to 8 custom characters to be pre-loaded
// into memory.
//
// http://johnny-five.io/api/lcd/#predefined-characters
//
lcd.useChar("runninga");
lcd.useChar("runningb");
this.loop(300, function() {
lcd.clear().cursor(row, col).print(
frames[frame ^= 1]
);
if (++col === lcd.cols) {
col = 0;
if (++row === lcd.rows) {
row = 0;
}
}
});
});
Additional Notes
