Plusivo UNO R3 Development Board (ATmega328p & CH340)

For Windows, download the CH340 driver from the manufacturer's website or trusted repositories and run the installer, then reconnect the board. On macOS 10.9+, the driver often loads automatically; if not, install the signed CH34x package. For Linux, the 'ch341' kernel module is typically pre-installed. After driver installation, the board should appear as a serial COM or ttyUSB port in your Arduino IDE or serial terminal software for uploading sketches.

Power the board via the DC barrel jack (7-12V recommended) or the USB Type-B port (5V). The onboard linear regulator steps down higher voltages to 5V for the MCU and I/O pins. Avoid exceeding 12V on the DC jack to prevent regulator overheating. When using both USB and external power, the board automatically selects the higher voltage source. For stable operation with motors or high-current peripherals, use the external DC supply to avoid USB current limits.

Yes, the Plusivo UNO R3 maintains full hardware and pinout compatibility with the official Arduino UNO R3. All standard Arduino core libraries (for SPI, I2C, Servo, etc.) and thousands of community libraries will compile and run without modification. Any shield designed for the UNO R3 form factor will plug directly onto the board's headers. Select the 'Arduino Uno' board in the Arduino IDE Tools menu to ensure correct pin mappings and bootloader settings for programming.

The ATmega328p is an 8-bit AVR RISC microcontroller featuring 32 KB of Flash program memory (with 0.5 KB reserved for the Optiboot bootloader), 2 KB of SRAM, and 1 KB of EEPROM. It operates at 16 MHz via an external crystal, providing a 62.5 ns instruction cycle time. It includes 23 programmable I/O lines, three timer/counters, a 10-bit ADC with six channels, and hardware serial (UART), SPI, and I2C (TWI) interfaces, making it suitable for a wide range of embedded control applications.