AREF模拟输入口参考电压 AREF stands for Analog Reference Voltage which is a reference voltage for analog inputs. Analog Pins 16个模拟量输入引脚(10位的分辨率,对应于0-1024) There are 16 analog pins incorporated on the board labeled as A0 to A15. It is important to note that all these analog ...
LED 13: It is an inbuild LED in the Arduino boards similar to that in Arduino Uno and mega. The LED is high when this pin is provided with a high signal. AREF: It is the reference voltage pin and is used with the function analog reference () in analog inputs. RESET: The reset ...
如下图: arduino板子上基本端口如图描述,对几个比较特殊的端口下面详细说明下:VIN端口:VIN是input voltage的缩写,表示有外部电源时的输入端口。如果不使用USB供电时,外接电源可以通过此引脚提供电压。(如电池供电,电池正极接VIN端口,负极接GND端口)AREF:Reference voltage for the analog inputs(模拟输入的基准电压)...
EAGLE files: Arduino_ADK-Mega_2560-Rev2-reference-design.zip Schematic: Arduino ADK_Mega_2560-schematic.pdf Pin Mapping: PinMap2560 page Summary Microcontroller ATmega2560 Operating Voltage 5V Input Voltage (recommended) 7-12V Input Voltage (limits) 5.5-16V Digital I/O Pins 54 (of which 14 pro...
Code: A000067 The MEGA 2560 is designed for more complex projects. With 54 digital I/O pins, 16 analog inputs and a larger space for your sketch it is the recommended board for 3D printers and robotics projects.This gives your projects plenty of room and opportunities.The Arduino Mega 2560...
Revision 3 of the Arduino board and the current Genuino Mega 2560 have the following improved features: 1.0 pinout: SDA and SCL pins - near to the AREF pin - and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from ...
f. AREF:Reference voltage for the analoginputs (模拟输入的基准电压),数字信号只有两种形态,高电平和低电平。高低电平是通过一个参考电压(AREF)确定的,高于AREF的电平即被认为是高电平,低于AREF的电平即被认为是低电平。Arduino默认的参考电压大约是1.1V,可以通过AREF端口设置外部参考电压。
Revision 3 of the Arduino Mega 2560 board (A000067) has the following new features: 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from...
Arduino 的 PWM(脉冲宽度调制) 是一种通过快速开关数字信号来模拟模拟电压的技术,常用于控制 LED 亮度、电机速度等。以下是关键点: 1. 支持PWM 的引脚 Arduino Uno/Nano:数字引脚旁标有 ~ 符号的引脚(如 3, 5, 6, 9, 10, 11)。 其他型号:如 Mega 2560 有更多 PWM 引脚,需查阅具体板卡文档。 2. ...
AREF:The reference voltage for analog inputs is used with analogReference(). Reset:for this pin bring the reset line LOW to reset the microcontroller. This pin is typically used when there is a shield that is blocking the reset on the board. ...