L298N not working

[Selva_En_el_Armario]

Hello, I have tried to replicate the hydroponic cultivation automation project, but I have problems with the l298n, I use Rasberry Pi 4, I have ph, ec and environment sensors. I have 3 peristatic pumps connected to 2 L298n, however, I find myself stuck, because I have tried all configurations and none of them work. Engine 1 with IN1 to GPIO 14; IN2 to GPIO 15 and EN1 to GPIO 13 PWM. Engine 2 with IN1 to GPIO 18; IN2 to GPIO 23 and EN1 to GPIO 12 PWM. External source of 12v 2A, without jumpers in l298.

I have also tried connecting Motor 1 with IN1 to GPIO 14; IN2 to GPIO 15 and EN1 with jumper and Motor 2 with IN1 to GPIO 18; IN2 to GPIO 23 and EN1 with jumper. In the power source, the 5v module with jumper has been enabled.

Activating the motors from mycodo shows a message of none.

any suggestion?

elements used:
-raspberry pi 4b

• 12v 2A source
  -l298n
• motors: https://www.amazon.com/-/es/dosificadora-peristáltica-conector-Aquarium-Analytic/dp/B01IUVHB8E/ref=sr_1_3?keywords=peristaltic+pump+12v&qid=1657339853&sprefix=perista %2Caps%2C186&sr=8-3

[duykhoin (Khoi Nguyen)]

Have you tried connecting the GND from the Pi to the GND of the L293 module i.e the Pi must share the same GND with 12V power supply?

[KyleGabriel]

@Selva_En_el_Armario

Activating the motors from mycodo shows a message of none.

Which Output module are you using?

@duykhoin

Have you tried connecting the GND from the Pi to the GND of the L293 module

This is very important for everything to have the same ground reference.