I am using 328p for my project. I have to control the 6 motor, so i have used 3 293d to soo.
To make it easy I am using one 293d at a time
But i observed some strange behaviours
1) one moter with channel 1 is working fine but i dnt have any control over other channel or motor. Second motor running continuesly
2) even 328p behave strangely. Its not at all run the code routine
3) Same circuit when i build in breadboard with same component they work fine, with same power supply to motorand controller. With out any decoupling capacitor.
I am really stuck and dnt know how to debug it and possible cause.
Note, as it is working fine with breadboard i don't have any doubt on power supply or i dnt know it could be
I am using decoupling capacitors at 293d output.
Could any one please help me what is the problem
I also need a alternative to run more motor in futrue
Attaching pcb solder side for a look. Will attch schamatic in while