同样是5V，为什么单片机输出的电流只有几毫安？ 为了让大家彻底搞懂这个问题，首先我们需要知道单片机引脚的构成。 以Atmega328单片机为例，这是它的内部引脚原理图。 可以看出，单片机的引脚和内部电源之间并不是只有一个MOS管，他还有一个电阻。 因为有 ...

The front circuit board is the meat and potatoes of the device. It hosts the user interface in the form of buttons, LEDs, and a graphic LCD screen. You can also see the USB mini-b connector which ...

April Fools’ Day may have passed, but we really had to check the calendar on this hack. [Damian Peckett] has implemented an Apple ][, its 6502 processor, and a cassette port, all on an Arduino Uno. If ...

Last week I spent most of my leisure time studying nonvolatile memory chips. The result was a better understanding of Arduino’s EEPROM. This might look like novice work, but I hope my thoughts will ...