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 ...

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 ...

Need more Arduino board? Do not spend more money for another one. Why not try to build your own DIY Arduino board? It is easy and simple. Now I will address one of the issues of making your own ...

Arduino is one of those boards that has become synonymous with hacking and making. Since its introduction in 2005, over 700,000 official Arduino boards have been sold, along with untold millions of ...

Adding USB functionality to your Arduino projects used to be a pain, but thankfully, the V-USB project came along and gave your ATMEGA328 the ability to control the USB lines directly and mimic simple ...