Arduino Mega 2560 产品说明书 ARDUINO MEGA 2560 REV3 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...
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...
the SDA (data line) and SCL (clock line) are on the pin headers close to the AREF pin. The Arduino Due has two I2C / TWI interfaces SDA1 and SCL1 are near to the AREF pin and the additional one is on pins 20 and 21.
用于将Arduino MEGA 2560连接到OLED显示器的引脚连接如下。 OLED GND - Arduino GND OLED VCC - Arduino 5V OLED SCL - Arduino MEGA 2560引脚21 OLED SDA - Arduino MEGA 2560引脚20 ESP8266-07 连线方式 VCC-5v GND-GND SCL-D1 SDA-D2 esp8266-12f死活不显示 用于SSD1306和图形功能的ArduinoOLEDI²C...
The new connections provide a pin (IOREF) for shields to detect the analog reference voltage (so that analog input values can be correlated with the supply voltage), and SCL and SDA pins to enable a consistent pin location for I2C devices. The location of the I2C pins had varied on some...
mega的程序如下: String device_mega = ""; String device_uno = ""; void setup() { // put your setup code here, to run once: Serial.begin(9600); Serial1.begin(9600); } void loop() { // put your main code here, to run repeatedly: ...
Similarly, if you are using Arduino mega pins 20 and 21 are SDA and SCL respectively. Arduino Digital Clock using DS3231 Pi Module circuit diagram So, connect the SDA or D pin of your RTC module to the SDA pin and the SCL or C pin to the SCL pin of your Arduino board. The Vcc ...
TWI:Pin 20 (SDA) and 21 (SCL) support TWI communication using the WIRE library. 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 wh...
Also you have to connect the clock (SCL) and data (SDA) pins for the I2C communication to send the information about voltage, current and power from the INA219 to the microcontroller. Arduino Nano Arduino Pro Mini Arduino Uno Arduino Mega ESP32 NodeMCU ESP8266 NodeMCU ESP8266 WeMos...
Arduino hardware package for ATmega64, ATmega128, ATmega165, ATmega169, ATmega325, ATmega329, ATmega640, ATmega645, ATmega649, ATmega1280, ATmega1281, ATmega2560, ATmega2561, ATmega3250, ATmega3290, ATmega6450, ATmega6490, AT90CAN32, AT90CAN64 and AT90CA