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April 18, 2021 17:28
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// updated -> 18-feb-2021 by Shahriar Shafin | |
#include <ESP8266WiFi.h> | |
WiFiClient client; | |
WiFiServer server(80); | |
const char* ssid = "Network Unavailable"; | |
const char* password = "dontshare"; | |
String data = ""; | |
int leftMotorForward = 2; | |
int rightMotorForward = 15; | |
int leftMotorBackward = 0; | |
int rightMotorBackward = 13; | |
int rightMotorENB = 14; | |
int leftMotorENB = 12; | |
void setup() | |
{ | |
pinMode(leftMotorForward, OUTPUT); | |
pinMode(rightMotorForward, OUTPUT); | |
pinMode(leftMotorBackward, OUTPUT); | |
pinMode(rightMotorBackward, OUTPUT); | |
pinMode(leftMotorENB, OUTPUT); | |
pinMode(rightMotorENB, OUTPUT); | |
pinMode(D2, OUTPUT); // the horn pin as an output | |
server.begin(); | |
} | |
void loop() | |
{ | |
client = server.available(); | |
if (!client) return; | |
data = checkClient (); | |
if (data == "f") MotorForward(); | |
else if (data == "b") MotorBackward(); | |
else if (data == "left") left(); //wheel left | |
else if (data == "right") right(); //wheel right | |
else if (data == "l") TurnLeft(); | |
else if (data == "r") TurnRight(); | |
else if (data == "br") BackRight(); | |
else if (data == "bl") BackLeft(); | |
else if (data == "s") MotorStop(); | |
else if (data == "ho") hornOn(); | |
else if (data == "hf") hornOff(); | |
else if (data == "rst") resetMCU(); | |
} | |
void resetMCU(void) | |
{ | |
ESP.restart(); | |
} | |
void hornOn(void) | |
{ | |
digitalWrite(D2, HIGH); | |
} | |
void hornOff(void) | |
{ | |
digitalWrite(D2, LOW); | |
} | |
void MotorForward(void) | |
{ | |
digitalWrite(leftMotorENB, LOW); | |
digitalWrite(rightMotorENB, HIGH); | |
digitalWrite(leftMotorForward, LOW); | |
digitalWrite(rightMotorForward, HIGH); | |
digitalWrite(leftMotorBackward, LOW); | |
digitalWrite(rightMotorBackward, LOW); | |
} | |
void MotorBackward(void) | |
{ | |
digitalWrite(leftMotorENB, LOW); | |
digitalWrite(rightMotorENB, HIGH); | |
digitalWrite(leftMotorForward, LOW); | |
digitalWrite(rightMotorForward, LOW); | |
digitalWrite(leftMotorBackward, LOW); | |
digitalWrite(rightMotorBackward, HIGH); | |
} | |
void left(void) | |
{ | |
digitalWrite(leftMotorENB, HIGH); | |
digitalWrite(rightMotorENB, LOW); | |
digitalWrite(leftMotorForward, LOW); | |
digitalWrite(rightMotorForward, LOW); | |
digitalWrite(leftMotorBackward, HIGH); | |
digitalWrite(rightMotorBackward, LOW); | |
} | |
void right(void) | |
{ | |
digitalWrite(leftMotorENB, HIGH); | |
digitalWrite(rightMotorENB, LOW); | |
digitalWrite(leftMotorForward, HIGH); | |
digitalWrite(rightMotorForward, LOW); | |
digitalWrite(leftMotorBackward, LOW); | |
digitalWrite(rightMotorBackward, LOW); | |
} | |
void TurnLeft(void) | |
{ | |
digitalWrite(leftMotorENB, HIGH); | |
digitalWrite(rightMotorENB, HIGH); | |
digitalWrite(leftMotorForward, LOW); | |
digitalWrite(rightMotorForward, HIGH); | |
digitalWrite(rightMotorBackward, LOW); | |
digitalWrite(leftMotorBackward, HIGH); | |
} | |
void TurnRight(void) | |
{ | |
digitalWrite(leftMotorENB, HIGH); | |
digitalWrite(rightMotorENB, HIGH); | |
digitalWrite(leftMotorForward, HIGH); | |
digitalWrite(rightMotorForward, HIGH); | |
digitalWrite(rightMotorBackward, LOW); | |
digitalWrite(leftMotorBackward, LOW); | |
} | |
void BackLeft(void) | |
{ | |
digitalWrite(leftMotorENB, HIGH); | |
digitalWrite(rightMotorENB, HIGH); | |
digitalWrite(leftMotorForward, LOW); | |
digitalWrite(rightMotorForward, LOW); | |
digitalWrite(leftMotorBackward, HIGH); | |
digitalWrite(rightMotorBackward, HIGH); | |
} | |
void BackRight(void) | |
{ | |
digitalWrite(leftMotorENB, HIGH); | |
digitalWrite(rightMotorENB, HIGH); | |
digitalWrite(leftMotorForward, HIGH); | |
digitalWrite(rightMotorForward, LOW); | |
digitalWrite(rightMotorBackward, HIGH); | |
digitalWrite(leftMotorBackward, LOW); | |
} | |
void MotorStop(void) | |
{ | |
digitalWrite(leftMotorENB, LOW); | |
digitalWrite(rightMotorENB, LOW); | |
digitalWrite(leftMotorForward, LOW); | |
digitalWrite(leftMotorBackward, LOW); | |
digitalWrite(rightMotorForward, LOW); | |
digitalWrite(rightMotorBackward, LOW); | |
} | |
String checkClient (void) | |
{ | |
while (!client.available()) delay(1); | |
String request = client.readStringUntil('\r'); | |
request.remove(0, 5); | |
request.remove(request.length() - 9, 9); | |
return request; | |
} |
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