⑦ICSPĪrduino Uno has two ICSP terminals, for "ATmega328P" and "ATmega16U2". The "L" of LED is connected to the 13th digital I/O, and can be lighted up by setting the 13th pin to HIGH(5V) in the program. Lights up when the Arduino Uno is poweredīlinks when sending via serial communicationīlinks when receiving via serial communicationĪrduino Uno has 4 LEDs(chip parts). Power can be supplied from "Vin" without using the power jack.Īnalog input reference voltage (0 to +5V input), Analog Input Analog Inputġ0-bit A/D converter(1step change every 4.8mV) You can specify which one to use in the program. PWM and serial communication are shared with digital I/O. ⑤I/O Port・Power Digital I/O・PWM Digital I/O・PWMĪnalog output by switching between 0V and +5V at high speed Use this when you want to restart the program from the beginning or when the Arduino Uno behaves strangely. You can restart the Arduino Uno by pressing the reset button. You can connect an AC adapter(outer diameter 5.5mm, inner diameter 2.1mm) to power the Arduino Uno. The Arduino Uno can also be powered via USB instead of the power jack. Programs (sketches) created on the PC can be written to the Arduino Uno, and the Arduino Uno can be controlled from the PC via serial communication. ②USB Portīy connecting the Arduino Uno to the USB port of your PC with a USB cable, you can communicate between the Arduino Uno and your PC. In addition, various memories such as SRAM, Flash memory, and EEPROM are also built into the microcontroller. The microcontroller of the Arduino Uno uses "ATmega328P" from Microchip Technology(USA).Ī microcontroller is a very important component in controlling electronic devices that correspond to the human "brain". Arduino Uno Functions Arduino Uno Appearance Socket Header Placement(Pin Header Placement)/LED Placement In addition, articles on other sites often include. Arduino Boards Comparison In this article, we will compare different types of Arduino boards and explain which one is best for you.
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