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Trouble with ESP8266 and MSP430

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Hello, I am trying to configure the ESP8266 (ESP-01) Wi-Fi module to the MSP430 but I cannot get the AT commands to work on the serial monitor.

Here is the code I am trying to get it working with. I get no errors compiling and on the Serial monitor I do get the "Remember to set Both..." and "Ready" but nothing after that. Whenever I try to type in anything in the serial monitor nothing changes.

The baud rate has been changed to 9600 on the ESP8266 using an Arduino and i was able to sucessfully connect the WiFi module to Wifi with the arduino so I know the module works and connections are wired similarly to how I wired them using the arduino.

Is there anything else I can try to get this to work?

Thank you in advanced!

#include <SoftwareSerial.h>

SoftwareSerial ESPserial(P1_2, P1_1); // RX | TX

void setup()

  #define RXD BIT1;
  #define TXD BIT2;


Serial.println("Remember to to set Both NL & CR in the serial monitor.");

void loop()
if ( ESPserial.available() ) { Serial.write( ESPserial.read() ); }
if ( Serial.available() ) { ESPserial.write( Serial.read() ); }


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7 hours ago, Rei Vilo said:
  • How the ESP8266 is powered?

Keep in mind the ESP8266 requires up to 400 mA, so it requires to be powered separately, as the MSP430 can supply all the current;

  • Which reference of the MSP430 are you using?

The MSP430G2553 has 512 bytes only of RAM, which may be too short.


I have tried powering the Module with the MSP430 and with a seperate power supply as well sharing the same ground but same thing.

I am using the MSP430G2553 though. Do you think that may be the problem? I have seen projects online that do use the G2553 which is why i figured that one would be okay for this project. 

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34 minutes ago, Rei Vilo said:

I am not sure whether SoftwareSerial works fine on the MSP430G2553, for the same reason of very limited RAM.

Does the ESP8266 run at 5V? MSP430G2553 runs at 3.3V.

Ahh okay I see. I will try to set up the ESP8266 another way then.

The ESP8266 runs at 3.3V; same as the MSP430. 

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