Description:
Arduino UNO R3 WiFi (ESP8266) with 32Mb flash memory.
Features
Microcontroller: Atmel ATmega328
- Operating voltage: 5V
- Input Voltage: (suggested) 7-12V
- Input Voltage: (maximum) 6-20V
- Digital I/O: 14 (6 of them can output PWM signals)
- Analog Input: 6
- 10-bit ADC
- I/O maximum current: 40 mA
- Flash Memory: 32KB (0.5KB used by bootloader)
- SRAM: 2KB
- EEPROM: 1KB
- SPI
- I²C
- Clock Frequency: 16MHz
Microcontroller: ESP8266
- Processore: 80 Mhz 32 bit microcontroller
- 64 KB instruction RAM, 96 KB data RAM
- Wi-Fi standard IEEE 802.11 b/g/n
- Security: WEP, WPA/WPA2
- 16 pin GPIO
- SPI
- I²C
- UART
- 10-bit ADC
Specifications:
- Weight: 21.2 g
- Width: 69 mm
- Length: 32 mm
- Height: 13 mm
- Compatible with Arduino Shields
Table DIP- switch:
| Connection | DIP | ||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| ATmega328<->ESP8266 | ON | ON | OFF | OFF | OFF | OFF | OFF |
| USB <->ATmega328 | OFF | OFF | ON | ON | OFF | OFF | OFF |
| USB<->ESP8266 (Update firmware or sketch) | OFF | OFF | OFF | OFF | ON | ON | ON |
| USB<->ESP8266 (communication) | OFF | OFF | OFF | OFF | ON | ON | OFF |
| All independent | OFF | OFF | OFF | OFF | OFF | OFF | OFF |
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