ESP8266 Community Forum

- Wed Feb 04, 2015 10:52 am #8957 for softwareserial change" #define _SS_MAX_RX_BUFF 64" // RX buffer size to 128 or more for testing. but dont forget, arduino sram size 2kb.
"C:\Program Files (x86)\Arduino\libraries\SoftwareSerial\SoftwareSerial.h"

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- Wed Feb 04, 2015 11:40 pm #9018 Unfortunately, raising _SS_MAX_RX_BUFF has not fixed the issue, I've seen some extensive arduino libraries for the ESP8266 based on softwareserial (https://github.com/sleemanj/ESP8266_Simple) so I'm very suprised that my softwareserial just doesn't work out of the box.

Here is sample output with higher _SS_MAX_RX_BUFF


Any other ideas???

- Thu Feb 05, 2015 3:47 am #9036 I would have checked wiring (are contacts solid?) and decoupling. A large capacitor close to the ESP can only do good.

- Sat Feb 07, 2015 12:35 am #9156 I've sufficiently solved my issue. I had a voltage divider to do the logic level conversion, but then I switched to a proper logic level converter (https://www.sparkfun.com/products/12009) and the ESP8266 responds to commands!

Moral of this story: use a proper logic level converter.