adjusted the library to give chance to user to be bale to select the i2c pins

examples/Control/Control.ino

@@ -1,22 +1,54 @@
 #include <I2CMotor.h>
 
-I2CMotor motor;
+// User can change these pins as needed:
+#define SDA_PIN 8
+#define SCL_PIN 3
+#define I2C_FREQ 100000
+
+I2CMotor motor(SDA_PIN, SCL_PIN, I2C_FREQ);
 
 void setup() {
     Serial.begin(115200);
     motor.begin();
 
-    if (motor.found()) {
+    if (!motor.found()) {
-        Serial.print("Motor controller found at address 0x");
+        Serial.println("No motor controller found. Halting.");
-        Serial.println(motor.address(), HEX);
+        while (1);
-        Serial.println("Identification: " + motor.identify());
-        motor.setMotorDirection(1, 1); // Motor 1 forward
-        motor.setMotorSpeed(1, 50);    // 50% speed
-    } else {
-        Serial.println("Motor controller not found!");
     }
+
+    motor.identify();
+
+    // Set device name and min/max PWM
+    motor.setDeviceName("FM");
+    motor.setMinMax(40, 255);
+
+    Serial.println("All tests complete.");
 }
 
 void loop() {
-    // Add your control logic here
+    // Set direction forward and test speeds
+    motor.setMotorDirection(1, 1); // Motor 1, forward
+    motor.setMotorSpeed(1, 50);
+    delay(2000);
+    motor.setMotorSpeed(1, 60);
+    delay(2000);
+    motor.setMotorSpeed(1, 80);
+    delay(2000);
+    motor.setMotorSpeed(1, 100);
+    delay(2000);
+
+    // Set direction backward and test speeds
+    motor.setMotorDirection(1, 2); // Motor 1, backward
+    motor.setMotorSpeed(1, 50);
+    delay(2000);
+    motor.setMotorSpeed(1, 60);
+    delay(2000);
+    motor.setMotorSpeed(1, 80);
+    delay(2000);
+    motor.setMotorSpeed(1, 100);
+    delay(2000);
+
+    // Stop
+    motor.emergencyStop();
+    delay(2000);
 }

src/I2CMotor.h

@@ -6,7 +6,7 @@
 
 class I2CMotor {
 public:
-    I2CMotor(uint8_t sda = 8, uint8_t scl = 9, uint32_t freq = 100000);
+    I2CMotor(uint8_t sda = 8, uint8_t scl = 3, uint32_t freq = 100000);
 
     void begin();
     bool found();