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It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it via an external DC power jack (DC 7-12V) or via female headers Vin/ GND(DC 7-12V) to get started.
TECH SPECS
Microcontroller: ATmega328P-PU
USB serial chip：CP2102
Operating Voltage5V
Input Voltage (recommended): DC7-12V
Digital I/O Pins:14 (D0-D13)(of which 6 provide PWM output)
PWM Digital I/O Pins: 6 (D3, D5, D6, D9, D10, D11)
Analog Input Pins: 6 (A0-A5)
DC Current per I/O Pin: 20mA
DC Current for 3.3V Pin: 50mA
Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM: 2KB (ATmega328P-PU)
EEPROM: 1KB (ATmega328P-PU)
Clock Speed: 16MHz
LED_BUILTIND: 13
Specialized Functions of Some Pins
Serial communication: Digital pins 0 (RX) and 1 (TX).
PWM Interfaces (Pulse-Width Modulation): D3, D5, D6, D9, D10, D11
External Interrupts: D2 (interrupt 0) and D3 (interrupt 1). These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value.
SPI communication: D10 (SS), D11 (MOSI), D12 (MISO), D13 (SCK). These pins support SPI communication using the SPI library.
IIC communication: A4 (SDA); A5(SCL)
The package contains:
1 x KEYESTUDIO Development Board for Arduino R3 Board
1 x USB cable
luqmaan
Reviewed in the United Arab Emirates on February 19, 2025
The quality of the product is very good. I am highly impressed with its performance. I found this board to be an excellent choice for projects.
Electrolonnie
Reviewed in the United States on July 14, 2024
I saw this for $9 and figured why not. I figured worst case, I could at least use the 'Atmega328p' which run about $13 to $15 for two anyway. It works great! I ended up using it to prototype my design instead of my Arduino Mega and when I was done, I actually loaded it with the "Arduino as ISP" sketch and used it to flash two breadboarded AVRs. This comes nicely packaged, a box inside a box, and includes an 18" USB cable. I also think the Black/Yellow is a nice change from the usual blue or all black PCBs. The top layer screening isn't as good as the original Arduinos or more expensive clones but you can still read the lettering.
Jack
Reviewed in the United States on December 4, 2024
The media could not be loaded.
Khan
Reviewed in the United Kingdom on August 2, 2023
clone if aRev3 arduino Uno c works well. with breadboard and IDE support
Airsoft Online Japan
Reviewed in Japan on November 8, 2023
After spending 4x this on a brand version and then buying this version, I honestly cannot tell the difference in performance. It is very well made and just as good as the official Arduino Uno.
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