搞左一輪都係時候用LCD出下D字..... 個LCD Hello World例子因佔用左pin2唔係咁啱個MAX485,所以改左佢,以便將來出字用。 gnd = lcd_#1 Vss power supply +5v = lcd_#2 Vcc power supply 20k = lcd_#3 V0 contrast pin13 = lcd_#4 RS 0 ...

The most popular display system widely used in Arduino projects is the liquid crystal display (LCD). LCD displays consists primarily of two sheets of polarized glass plates with a thin layer of liquid ...

We all like cheap items off eBay especially if they do cool and unusual things, sometimes we get so carried away by the price that we do not even realize that fact that we do not know anything about ...