![]() The Arduino Mega 2560 Rev3 is compatible with most shields designed for the Arduino Duemilanove or Diecimila, making it a versatile option for expanding the capabilities of the board. ICSP header for programming with an external programmer.Power jack for an external power source.USB Type B connection for programming and power.54 digital input/output pins (of which 14 can be used as PWM outputs).It was first released in 2010 and has since become a popular choice among makers, hobbyists, students, and professionals in the fields of engineering, robotics, and electronics. Gets one motor working but from the research I did TCCR3B should be connected to pin 2 which is not being used.The Arduino Mega 2560 Rev3 is a microcontroller board based on the ATmega2560. Unsigned char DualVNH5019MotorShield::getM2Fault() Unsigned char DualVNH5019MotorShield::getM1Fault() Unsigned int DualVNH5019MotorShield::getM2CurrentMilliamps() Return motor 2 current value in milliamps. 5V / 1024 ADC counts / 144 mV per A = 34 mA per count ![]() Unsigned int DualVNH5019MotorShield::getM1CurrentMilliamps() Return motor 1 current value in milliamps. Void DualVNH5019MotorShield::setBrakes(int m1Brake, int m2Brake) Brake motor 1 and 2, brake is a number between 0 and 400 Void DualVNH5019MotorShield::setM2Brake(int brake) Void DualVNH5019MotorShield::setM1Brake(int brake) Brake motor 1, brake is a number between 0 and 400 Void DualVNH5019MotorShield::setSpeeds(int m1Speed, int m2Speed) Void DualVNH5019MotorShield::setM2Speed(int speed) Void DualVNH5019MotorShield::setM1Speed(int speed) Set speed for motor 1, speed is a number betwenn -400 and 400 Mega board specific stuff here - assumes assigning timer3, using pins 3 &5 ![]() Define pinMode for the pins and set the frequency for timer1. PWM1 and PWM2 cannot be remapped because the library assumes PWM is on timer1 Unsigned char INA2, unsigned char INB2, unsigned char EN2DIAG2, unsigned char CS2) cpp file is: #include "DualVNH5019MotorShield.h"ĭualVNH5019MotorShield::DualVNH5019MotorShield()ĭualVNH5019MotorShield::DualVNH5019MotorShield(unsigned char INA1, unsigned char INB1, unsigned char EN1DIAG1, unsigned char CS1, Unsigned char getM2Fault() // Get fault reading Unsigned char getM1Fault() // Get fault reading Unsigned int getM2CurrentMilliamps() // Get current reading Unsigned int getM1CurrentMilliamps() // Get current reading Void setBrakes(int m1Brake, int m2Brake) // Brake both M1 and M2 Void setSpeeds(int m1Speed, int m2Speed) // Set speed for both M1 and M2 Void init() // Initialize TIMER 1 (or timer 3 for mega) set the PWM to 20kHZ Unsigned char INA2, unsigned char INB2, unsigned char EN2DIAG2, unsigned char CS2) // User-defined pin selection. The header file is: #ifndef DualVNH5019MotorShield_hĭualVNH5019MotorShield() // Default pin selectionĭualVNH5019MotorShield(unsigned char INA1, unsigned char INB1, unsigned char EN1DIAG1, unsigned char CS1, The motors I am using are: Pololu - 30:1 Metal Gearmotor 37Dx52L mm 12V (Spur Pinion).Ģ motors connected to the Mega via the Motor Driver powered by a 12V laptop charger which does not seem to have any problems.The connections I have are:ĭigital 13 M1INA Motor 1 direction input Aĭigital 4 M1INB Motor 1 direction input Bĭigital 6 M1EN/DIAG Motor 1 enable input/fault outputĭigital 7 M2INA Motor 2 direction input Aĭigital 8 M2INB Motor 2 direction input Bĭigital 12 M2EN/DIAG Motor 2 enable input/fault outputĪnalog 0 M1CS Motor 1 current sense outputĪnalog 1 M2CS Motor 2 current sense output I was previously using an Uno with the Motor Driver and did not have any problems since the 16-bit timer is connected to pins 9&10 on the Uno thus able to get the required PWM frequency (20kHz). I used these threads & but have not been able to get both motors working. I am trying to connect the Motor Driver to Timer 3 (that is pins 3&5 on the Arduino Mega),in order to use the 16-bit timer instead of the 8-bit timer which is connected to pins 9&10 which is the default connection used. I am having problems regarding the connection between the Arduino Mega 2560 and the Motor Driver VNH5019.
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