Arduino code to drive 4 motors

Hi, ok so I have learned more from experimenting with Racingmats build instructions, so far i am beginning to understand the relationship between AXIS and DOF , i am using racingmats 2Dof arduino code , my question is can i run 4 motors with this code? Or does it need to be modified?

Although I don't know that much about coding ... But obviously what is written for a 2DOF can't be used for 4motors without modifications ... [ Motor Drivers ] need specific signal requirements to operate properly ... some of them operate with two direction signals and the others just operate on one direction signal for forward and reverse operation .

As far as I know Ard supports up to 3 motors - depending on the code.

Yes @Pit ... and I guess @prilad and his colleagues did it for 6 motors on the mal4x.ru forum ... but I don't know why ? I still can't read it under Google translation .

@Nicko355 @Pit @speedy
no problem to drive 4 motors
if you have an Hbridge with 1 pin direction: it's already written http://www.xsimulator.net/community/marketplace/arduino-code-4dof-and-1-pin-direction-hbridge.68/
for 2 pins, you have to follow this example and change this code http://www.xsimulator.net/community/marketplace/arduino-code-2dof-and-2-pins-direction-hbridge.67/

Ok yes Racingmat, I just re read your code and I understand it better , so i will connect another motor monster and 2 more motors and continue experimenting, THANKS ALL once again CHEERS Nick

And what if we want to use four bigger motors (250w) and we have to use two MM for each?

@gorzasty
4 motors driven by 8 motomonster only require 1 arduino and same code

because 2 motomonsters wired together is seen like a single motomonster : 1 PWM pin and 2 Direction pins

Sorry my mistake @RacingMat, I was thinking about the 4 mototrs driven by the 4 MM. Thx to @Pit thread I know that we can use wireings like this:

Arduino -------- Monster Moto
2 (Motor 1 H-Bridge ENA) ---------------7 and 8 (INA1 and INB1)
3 (Motor 1 H-Bridge ENB)----------------4 and 9 (INA2 and INB2)
9 (Motor 1 PWM) --------------------------5 and 6 (PWM1 and PWM2)

Arduino -------- Monster Moto 2
4 (Motor 2 H-Bridge ENA) ---------------7 and 8 (INA1 and INB1)
5 (Motor 2 H-Bridge ENB)----------------4 and 9 (INA2 and INB2)
10 (Motor 2 PWM) --------------------------5 and 6 (PWM1 and PWM2)

Arduino -------- Monster Moto 3
6 (Motor 1 H-Bridge ENA) ---------------7 and 8 (INA1 and INB1)
7 (Motor 1 H-Bridge ENB)----------------4 and 9 (INA2 and INB2)
11 (Motor 1 PWM) --------------------------5 and 6 (PWM1 and PWM2)


but no word about 4'th motor. I think there is no place for it in the Arduino, but I'm a newbe...

@gorzasty If you want to drive 4 motors with 1 arduino,
you have to use a H-Brisge with 1 PWM pin and 1 Direction pin like described here http://www.xsimulator.net/community/marketplace/arduino-code-4dof-and-1-pin-direction-hbridge.68/

Thx @RacingMat I will look at it.

Excuse me! could you tell me about the data from simtool sent to arduino? A packet of data include 8 bit or 3 bit? And I don't understand how it calculate in this episode:
byte Data[3]={'0','0','0'};
// keep this function short, because the loop has to be short to keep the control over the motors

if (Serial.available()>2)
{
//parse the buffer : test if the byte is the first of the order "R"
Data[0]=Serial.read();
if (Data[0]=='L')
{
Data[1]=Serial.read();
Data[2]=Serial.read();
// call the function that converts the hexa in decimal and that maps the range
DataValueR=NormalizeData(Data);
}
Could you explain to me? Thank you so much. @RacingMat

why do you want to change anything?

No, I don't want to change. I just don't understand about it.

It's not all bad
I will try when I receive my two card monster motorcycle