1.Description

Doing experiments with electronic products, we often program on the Arduino IDE development environment with Arduino series microcontrollers.

Keyestudio PLUS control board is fully compatible with Arduino IDE development environment. It is as same as the Arduino UNO R3 board. Moreover, some improvements we made highly strengthen its function(as shown below). In order to wire efficiently, we equip it with a 1m USB cable with type-c interface for you.

2.Specification

Microcontroller：ATMEGA328P-AU

USB to serial chip: CP2102

Working voltage: 5V or 3.3V (DIP switch control)

External power: DC 6-15V (recommend 9V)

Digital I / O pins: 14 (D0-D13)

PWM channel: 6 (D3 D5 D6 D9 D10 D11)

Analog input channel (ADC): 8 (A0-A7)

Each I / O Port of DC output capability : 20 mA

Output capability of 3.3V port: 50 mA

Flash Memory: 32 KB (of which 0.5 KB is used by the bootloader)

SRAM: 2 KB (ATMEGA328P-AU)

EEPROM: 1 KB (ATMEGA328P-AU)

Clock speed: 16MHz

On-board LED pin: D13

3.Interfaces

4.Specialized Functions of Some Pins:

Serial communication interface: D0 is RX, D1 is TX

PWM interface (pulse width modulation): D3 D5 D6 D9 D10 D11

External interrupt interface: D2 (interrupt 0) and D3 (interrupt 1)

SPI communication interface: D10 is SS, D11 is MOSI, D12 is MISO, D13 is SCK

IIC communication port: A4 is SDA, A5 is SCL