Description:
- Mega R3 ATmega2560 and WiFi ESP8266 with memory 32Mb.
- The convenient solution for the development of new projects requiring Uno and WiFi.
- For this onboard have the USB-serial converter CH340G.
Table DIP- switch:
| Connection | DIP | ||||||
|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| ATmega2560<->ESP8266 | ON | ON | OFF | OFF | OFF | OFF | OFF |
| USB <->ATmega2560 | 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 |
Special solution:
USB <->ATmega328<-> ESP8266
| DIP | SWITCH 2 | |||||||
|---|---|---|---|---|---|---|---|---|
| Connection | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| USB <-> ATmega2560<-> ESP8266 | ON | ON | ON | ON | OFF | OFF | OFF | To RXD3/TXD3 |
- USB converter CH340G connect to RX0/TX0 of ATmega2560
- ESP8266 connect to RX3/TX3 of ATmega2560
