Arduino UNO PLC

The main control of this industrial control board is compatible with Arduino Uno, and it is easy to master the controlprinciple. By re-distributing the pins and combining them with the relay, the input-output linkage control is well realized. The1602 display can feedback on the desired port data. The power supply and programming ports use 9-pin VGA ports, which can adapt to a variety of complex production environments and are more stable. Pin condition0: (Rx) for receiving serial data1: (TX) for sending serial data24 / 302, 3: The external interrupt signal can be input, and the interrupt can be triggered when the external low level, level changeor rising and falling edges occur. 3, 5, 6, 9, 10,11: These pins provide 8-bit PWM output, using functions like analogWrite()10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK): These pins support SPI communication and can be operated using the officialSPI libraryI2C: A4 (SDA) and A5 (SCL), you can use the official Wire library to operate