It uses 4 digits to display the number of steps, and the sensor uses an ordinary switch. Each time the switch is pressed, it counts once. It needs 74LS390 74LS247 74LS08 and other components. Which he...
Hey guys, I just started to develop WinCE and now I have a problem. When using the touch screen, the touch part will occasionally fail, but when detecting the four ports of SPI, there will still be wa...
Introduction: When different power supply levels are used on the same circuit board, level translation is required. In order to achieve translation compatibility between the driver and the receiver, t...
[i=s] This post was last edited by damiaa on 2015-2-20 09:15 [/i] [b][size=3][color=#ff0000]Happy New Year, and I wish EEWORLD good luck in the Year of the Goat! [/color] [color=#008000] E-forum is do...