Uno R3 Atmega16U2 + Atmega328 P ชิป Arduino Uno R3 บอร์ด + สายเคเบิ้ล Usb

UNO R3 is the latest easy-to-use open source controller introduced in 2012. There is no big change in hardware compared with UNO. The biggest difference is that the USB to serial port circuit part is changed to an ATMega16U2 MCU, so the cost is also Improve, the software part is the same as before, no big changes. Features: 1. Pin change: Two I2C pins are added next to the AREF pin (SDA and SCL, only copy of Analog 4 and 5, not an additional I2C interface). In addition, two pins are added next to RESET, one is IOREF. Can make the expansion board adapt to the onboard voltage, this pin just tells the expansion board what the current onboard voltage is (such as UNO is 5V, can be seen as the copy of the power pin, does not provide level pull-up), the other is later Placeholder pins for use. 2. More stable RESET circuit. The position of the RESET button has also changed, and it has been moved to the corner of the board near the USB interface, making it easier to press. 3. ATmega16U2 replaces 8U2, which does not mean that R3 with 16K flash can make your code run faster. This update is for USB interface chip. In theory, it allows UNO to simulate USB HID, such as MIDI/ Joystick/Keyboard. We deal in wholesale and retail Feel free to contact us #UNO #R3 #ATMEGA16U2 #ATMEGA328P #Development #board