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The main difference in this clone of Arduino Uno R3 CH340 Chip, which is one of the standard boards of Arduino, is that the programming integrated (USB-Serial converter) used by Arduino Uno R3 CH340 is CH340.
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Although it has a few small differences from Arduino, there is no difference in terms of its use, software and the compatibility of the expansion boards.
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Arduino Uno
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It is a microcontroller card based on Atmega328.
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It has 14 digital input/output pins (6 of which can be used as PWM outputs), 6 analog inputs, 16Mhz crystal, usb socket, power socket, ICSP connector and reset button.
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There is everything necessary for the microcontroller to work on the card.
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It can be easily connected to the computer via USB cable, operated by adapter or battery.
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Technical Specifications Microcontroller: ATmega328P
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Operation Voltage: 5V
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Input Voltage (recommended): 7-12V
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Input Voltage (limit): 6-20V
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Digital I/O Pins: 14 (6 of which are PWM outputs)
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Analog Input Pins
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Current per I/O: 40 mA
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Current for 3.3V Output: 50 mA
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Flash Memory: 32 KB (ATmega328) 0.5 KB bootloader
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SRAM: 2 KB (ATmega328)
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EEPROM: 1 KB (ATmega328)
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Clock Speed 16 MHz
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Length: 68.6 mm
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Width: 53.4 mm
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Weight: 25 g
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Useful Links Arduino IDE (Software Development Platform)
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Arduino Uno Official Page
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Atmega328 Datasheet
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Card Schematic


