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 ...

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 ...

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 ...

There are many reasons to build your own Arduino circuit on a protoboard or a custom-designed printed circuit board. At the heart of the Arduino platform is an AVR microcontroller, in usual way you ...

Back in October I managed to get my 7400 Logic PLL Based Switcher in the third place category of the Dangerous Prototypes Open 7400/4000 Series Logic Contest. Dangerous Prototypes had the neat idea to ...

There seems to be no shortage of hobby boards available to program on these days. Most, like the popular Arduino and Raspberry Pi boards, started life as a tool to teach students about programming and ...