I am recieving the following in my serial monitor. There is a mix of wierd characters then the spelling changes for words once it gets repeated. I don't know why its doing this. my esp01 chip uses 115200 baud rate and the program is 115200 baud rate as well. What is going on.
#include <SoftwareSerial.h>
#define TIMEOUT 5000 // mS
#define LED 5
SoftwareSerial mySerial(7, 6); // RX, TX
const int button = 11;
int button_state = 0;
void setup()
{
pinMode(LED, OUTPUT);
pinMode(button, INPUT);
Serial.begin(115200);
mySerial.begin(115200);
SendCommand("AT+RST", "Ready");
delay(5000);
SendCommand("AT+CWMODE=3", "OK");
SendCommand("AT+CIFSR", "OK");
SendCommand("AT+CIPMUX=1", "OK");
SendCommand("AT+CIPSERVER=1,80", "OK");
}
void loop() {
button_state = digitalRead(button);
mySerial.println(button_state);
if (button_state == HIGH) {
SendCommand("AT+CIPSEND=0,23", "OK");
delay(250);
mySerial.println("<h1>Button was pressed!</h1>");
delay(250);
SendCommand("AT+CIPCLOSE=0", "OK");
}
String IncomingString = "";
boolean StringReady = false;
while (mySerial.available()) {
IncomingString = mySerial.readString();
StringReady = true;
}
if (StringReady) {
Serial.println("Received String: " + IncomingString);
if (IncomingString.indexOf("LED=ON") != -1) {
digitalWrite(LED, HIGH);
}
if (IncomingString.indexOf("LED=OFF") != -1) {
digitalWrite(LED, LOW);
}
}
}
boolean SendCommand(String cmd, String ack) {
mySerial.println(cmd); // Send "AT+" command to module
if (!echoFind(ack)) // timed out waiting for ack string
return true; // ack blank or ack found
}
boolean echoFind(String keyword) {
byte current_char = 0;
byte keyword_length = keyword.length();
long deadline = millis() + TIMEOUT;
while (millis() < deadline) {
if (mySerial.available()) {
char ch = mySerial.read();
Serial.write(ch);
if (ch == keyword[current_char])
if (++current_char == keyword_length) {
Serial.println();
return true;
}
}
}
return false; // Timed out
}