I changed your code like this and its Working
SoftwareSerial mySerial(2, 3); // RX, TX
void setup() {
// initialize both serial ports:
Serial.begin(9600);
mySerial.begin(115200);
pinMode(4, OUTPUT); // WAKEUP:4
pinMode(5, INPUT); // int:5
digitalWrite(4, HIGH); // make sure high before low
delay(1);
digitalWrite(5, HIGH);
digitalWrite(4, LOW); // before send command
delay(1);
digitalWrite(5, LOW);
// mySerial.println(“TTM”);
// delay(2000);
digitalWrite(4, HIGH); // make sure high after sending data
delay(1);
}
void loop()
{
mySerial.println(analogRead(A0));
// delay(10);
}