Description
RobotDyn UNO+WIFI R3 is a customized version of the classic ARDUINO UNO R3 board which has two Processors: Atmel ATmega328 microcontroller and ESP8266 WiFi chip with 8 MB flash memory. Each processor has its own pinout headers. The board also has USB-TTL converter based on CH340G on same board.
The convenient solution for the development of new projects requiring Uno and WiFi. Via USB you can update sketches and firmware for ATmega328 and for ESP8266. The board has DIP-switch, to connect the processors.
Features
- Two CPUs: ATMEGA328P (8-Bit) and ESP8266 (32-Bit)
- 8mb ESP8266 Flash Memory
- External U.FL Antenna Connector for WiFi
- Micro USB connection
- Power jack, 7-12V power input.
- Compatible with Arduino
- Compatible with nodemcu
- Can be used with existing Arduino Shields
Technical Specifications
| Microcontrollers | 1x ATMEGA328P and 1x ESP-8266EX |
| Operating Voltage | 5V for ATMEGA328P and 3.3V for ESP8266 |
| Digital I/O Pins | 13 for ATMEGA328P (5v compliant)+ 8 for ESP8266 (3.3V compliant) |
| Analog Input Pins | 6 for ATMEGA328P (5V compliant) + 1 for ESP8266 (3.3V compliant) |
| Clock Speed | 16MHz for ATMEGA328P and 80MHz/160MHz for ESP8266 |
| ESP8266 Flash | 8M bytes |
| Length | 68.6mm |
| Width | 53.4mm |
| Weight | 21.4g |
Switch Status and Mode Selection Table
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| CH340 connect to ESP8266 (upload sketch) | OFF | OFF | OFF | OFF | ON | ON | ON | NoUSE |
| CH340 connect to ESP8266 (connect) | OFF | OFF | OFF | OFF | ON | ON | OFF | NoUSE |
| CH340 connect to ATmega328 (upload sketch) | OFF | OFF | ON | ON | OFF | OFF | OFF | NoUSE |
| Mega328+ESP8266 | ON | ON | OFF | OFF | OFF | OFF | OFF | NoUSE |
| Both MEGA328P and ESP8266work independently | OFF | OFF | OFF | OFF | OFF | OFF | OFF | NoUSE |
