max_imum2000
New Member
hello
i am just trying a simple circuit , and as usual its not working.
its just a simple h-bridge made from L298 , i gut it from
https://www.hobbyengineering.com/H1918.html
it works fine Alone
now i tried to attach it to a PIC controller.
i make RB0 hi on one of the pins that suppose to turn the motor in 1 direction.
but nothing happens , when i attach this pin to +5V the motor turn but when i attach it to the PIC RB0 pin it wont move
the h-bride motor voltage that i am suppling is 6V,1.5amp
now a have a few questions also that i dont understand
1. when i operate the h-bridge circuit alone (no PIC), i dont use the enable line. i just attach one of the direction pins and the motor just spins left of right, isnt the enable pin suppose to be hi in order for it to work ??
2. does the current supplied from the PIC is not enough to switch the h-bridge , and i still need to have a transistor ?
I will appricte your help so much
thanks
i am just trying a simple circuit , and as usual its not working.
its just a simple h-bridge made from L298 , i gut it from
https://www.hobbyengineering.com/H1918.html
it works fine Alone
now i tried to attach it to a PIC controller.
i make RB0 hi on one of the pins that suppose to turn the motor in 1 direction.
but nothing happens , when i attach this pin to +5V the motor turn but when i attach it to the PIC RB0 pin it wont move
the h-bride motor voltage that i am suppling is 6V,1.5amp
now a have a few questions also that i dont understand
1. when i operate the h-bridge circuit alone (no PIC), i dont use the enable line. i just attach one of the direction pins and the motor just spins left of right, isnt the enable pin suppose to be hi in order for it to work ??
2. does the current supplied from the PIC is not enough to switch the h-bridge , and i still need to have a transistor ?
I will appricte your help so much
thanks