strange behaivour

[CapnKernel]

Looks interesting, which motor controller are you using?

I've ordered two vnh2sp30 on sepparate stores in aliexpress first, but both not worked (it is moved forward, but no reverse. Current sensing works ok)

I  bought a similar vnh2sp30 on ebay.  I can't get it to work, even hard-wiring the inputs like so:

PWM, INB, EN, +5V to 5V
INA, GND to 0V
CS: NC

Do those connections look correct to get movement in one direction?

Then i bought IBT_2 board with BTS7960 chips in local store


It is huge with radiator but works fine in both directions (after slight modification of motor.ino). 

I've bought the same product (well, looks the same).  I'll try that next.  What changes did you make?