ESP8266 Community Forum

- Tue Jun 09, 2015 2:53 pm #19963 Hi all, as this is my first post i should greet you all and thank you for all the useful threads in this forum.

I have been provided for a school project with both ESP8266-DEV and ESP8266 + USB to RS485 cable, i cant get connection with this cable, i made a little research and found that the best suited cable for this is for example TTL-232R-3V3. Or maybe i'm doing something wrong and RS485 cable should work also. I tried to communicate thru Arduino IDE serial monitor(i installed esp8266 board support to Arduino idle as well).

I also used Arduino uno as a TTL connector and can communicate thru that but i read, that this could damage the device because the arduino tx/rx gives out 5V.

Ollu

- Tue Jun 09, 2015 8:19 pm #19989 I dont know why did they give you a rs485 to usb. Esp doesnt support rs485 unless you provide rs485 to ttl 3v3, max3485 could do the work.
But I recommend using usb to ttl 3v3, ftdi breakout is a good option.