pertama siapkan dahulu materialnya:
- mobil" an anak yang gk kepakai
- nodemcu
- shield motor nodemcu
- powerbank
- motor gearbox + roda
aplikasi: wifi rc car esp8266
langkah pertama:
1. upload sketch ke nodemcu:
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
const char *ssid = "mobil thomas"; // SSID Name
const char *password = "12345678"; // SSID Password : Between 8 and 32 carateres
IPAddress ip(192, 168, 4, 1); // IP Address
IPAddress netmask(255, 255, 255, 0); // Netmask
const int port = 80; // Port
ESP8266WebServer server(port);
// Motors pins
static const uint8_t pwm_A = 5 ;
static const uint8_t pwm_B = 4;
static const uint8_t dir_A = 0;
static const uint8_t dir_B = 2;
static const uint8_t LAMPU = 13;
// Motor speed = [0-1024]
int motor_speed = 1024;
void stop_motors() {
analogWrite(pwm_A, 0);
analogWrite(pwm_B, 0);
}
void backward() {
analogWrite(pwm_A, motor_speed);
analogWrite(pwm_B, motor_speed);
digitalWrite(dir_A, LOW);
digitalWrite(dir_B, HIGH);
}
void forward() {
analogWrite(pwm_A, motor_speed);
analogWrite(pwm_B, motor_speed);
digitalWrite(dir_A, HIGH);
digitalWrite(dir_B, LOW);
}
void turn_left() {
analogWrite(pwm_A, motor_speed);
analogWrite(pwm_B, motor_speed);
digitalWrite(dir_A, HIGH);
digitalWrite(dir_B, HIGH);
}
void turn_right() {
analogWrite(pwm_A, motor_speed);
analogWrite(pwm_B, motor_speed);
digitalWrite(dir_A, LOW);
digitalWrite(dir_B, LOW);
}
void handleRoot() {
if (server.hasArg("State")) {
String command = server.arg("State");
if (command.equals("F")) {
forward();
server.send(200, "text / plain", "Forward");
}
else if (command.equals("B")) {
backward();
server.send(200, "text / plain", "Backward");
}
else if (command.equals("L")) {
turn_left();
server.send(200, "text / plain", "Turn Left");
}
else if (command.equals("R")) {
turn_right();
server.send(200, "text / plain", "Turn Right");
}
else if (command.equals("S")) {
stop_motors();
server.send(200, "text / plain", "Stop");
}
else if (command.equals("ON")) {
digitalWrite(LAMPU, HIGH);
server.send(200, "text / plain", "Switch on the light");
}
else if (command.equals("OFF")) {
digitalWrite(LAMPU, LOW);
server.send(200, "text / plain", "Switch off the light");
}
}
}
void setup() {
WiFi.mode(WIFI_AP); //Only Access point
WiFi.softAPConfig(ip, ip, netmask);
WiFi.softAP(ssid, password);
// Declaration of motors
pinMode(pwm_A, OUTPUT); // PMW A
pinMode(pwm_B, OUTPUT); // PMW B
pinMode(dir_A, OUTPUT); // DIR A
pinMode(dir_B, OUTPUT); // DIR B
pinMode(LAMPU, OUTPUT); // LAMPU
// Start Server
server.on("/", HTTP_GET, handleRoot);
server.begin();
}
void loop() {
server.handleClient();
}
setelah selesai upload
2. rangkai motor ke shield motor dan tancapkan nodemcu ke shield motor
3. tancapkan kabel powerbank ke nodemcu
4. jalan kan aplikasi
5. konek wifi HP ke wifi nodemcu
readyyyy GOOOOOOOOOOOOOOOOO
