Need help with Servo controlled using Arduino 101

I am cotrolling VEX Robotics Motor using Arduino 101.
While the code works, I am only able to run one motor successfully.
When I try two motors, only one moves.

Can some one try to see what I might be doing wrong?

This is my code:

#include <CurieBLE.h>
#include <Servo.h>
Servo M1;
Servo M2;

#define motorOne 8
#define motorTwo 10

BLEPeripheral blePeripheral;  // BLE Peripheral Device (the board you're programming)
BLEService ControlMotor("19B10010-E8F2-537E-4F6C-D104768A1214"); // BLE AnalogRead Service

// BLE LED Switch Characteristic - custom 128-bit UUID, read and writable by central
BLEUnsignedIntCharacteristic MotorStatus("19B10011-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite  );

int incom = 0;
int last_incom = 0;

void setup() {
  // add service and characteristic:
  pinMode(motorOne, OUTPUT);
  pinMode(motorTwo, OUTPUT);

void loop() {
  BLECentral central = blePeripheral.central();
  if (central) {
    while (central.connected()) {
      if (MotorStatus.written())
        incom = MotorStatus.value();
       if (incom != last_incom)
          if (incom == 65)
            M1.write(140); // THIS MOTOR MOVES
            M2.write(140); // THIS MOTOR DOES NOT MOVE
        last_incom = incom;
  Serial.print(F("Disconnected from central: "));

Sorry, it works.
Maybe something with my wiring.
Need to check the circuit again.


If you're trying to power the motors from the Arduino the problem could be that it doesn't provide enough current for both of the motors to run reliably or that the motors are putting noise on the power lines to the Arduino. Usually you should use a separate power supply for the motors but still connect the ground wire of that supply to your Arduino.