KEYESTUDIO R3 is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs)
6 analo g inputs
a 16 MHz ceramic resonator
a USB connection
a power jack
an ICSP header
and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
The Uno R3 differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead
it features the Atmega16U2 programmed as a USB-to-serial converter.
Product Features:
1. Pin of changes: next to the AREF pin both I2C-pin (SDA and SCL
just Analo g 4 and 5 of the copy
not the additional I2C interface)
plus the two next to the RESET pin
one IORE fallow expansion board voltage on board
this pin expansion board
just told the on board voltage (such as R3 5V
can be seen as the power pins copy
does not provide the level pull)
the other is later Scratch placeholder pin.
2. More stable RESET circuit. The RESET key position has changed
which has been moved to the corner near the USB interface board
more convenient and press.
3. The ATmega16U2 instead 8U2
and that does not mean that the 16K flash of R3 make your code run faster
this update is a service of the USB interface chip
theoretically it UNO can simulate USB the HID
such as MIDI / Joystick / Keyboard.
Specification:
Microcontroller: ATmega328P
Operating Voltage: 5V
Input Voltage (recommended): 7-12V
Digital I/O Pins: 14 (of which 6 PWM output)
Analo g Input Pins: 6
DC Current per I/O Pin: 20 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM: 2 KB
EEPROM: 1 KB
Clock Speed: 16 MHz
Package includes:
1 x R3 Development Board
1 x USB Cable
SKU: 1204 Categories: Electronic Com
ARDUINO UNO
Common Questions
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