The Uno R3 board combines the ATmega328P with the ESP8266 and 32 Mb of memory. The two systems can communicate with each other or operate independently, running different programs. Programming is done via the microUSB port, while communication between the systems uses the UART port (RX, TX).
A DIP switch lets you select the USB connection to the ATmega328P or ESP8266, communication between USB and the ESP8266 for programming, communication between the ATmega328P and ESP8266, or disable communication. Data transfer via USB is handled by the CH340G.
- Board type: Uno
- Microcontroller: ATmega328P
- WiFi module: ESP8266
- Memory: 32 Mb
- Clock frequency: 16 MHz
- System logic: 5 V
- Supply voltage: 7–12 V
- Input/output ports: 14
- PWM ports: PWM outputs
- Programming port: microUSB
- Communication port: UART (RX, TX)
- USB controller: CH340G
- Connection configuration: DIP switch
Manufacturer
OEM- Type
- Board
- Board Model
- Uno
- Chipset
- ATmega328P
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.