Motor control with Lynxmotion dual bridge
JeffInt
Posts: 6
Hi
I have a propeller dev board linked to a Lynxmotion dual bridge module. This module uses the L298 chip.
I am using a software object suitable for this chip which I downloaded from the propeller website. Everything appears to be connected correctly but the setup makes a great deal of noise - source - the connected drive motor. I never see rotation as such but the motor does appear to try and turn.
Now to the questions.
I have connected the propeller outputs (3.3V) to the bridge (which expects TTL levels) does anyone think a pull up resistor would help? Do I need a series current limiting resistor as well?
The motor is built into a Tamiya tank drive system which includes quite a bit of gearing. I don't think this is a problem as a battery applied straight to the motor provides great acceleration.
Regards
Jeff
I have a propeller dev board linked to a Lynxmotion dual bridge module. This module uses the L298 chip.
I am using a software object suitable for this chip which I downloaded from the propeller website. Everything appears to be connected correctly but the setup makes a great deal of noise - source - the connected drive motor. I never see rotation as such but the motor does appear to try and turn.
Now to the questions.
I have connected the propeller outputs (3.3V) to the bridge (which expects TTL levels) does anyone think a pull up resistor would help? Do I need a series current limiting resistor as well?
The motor is built into a Tamiya tank drive system which includes quite a bit of gearing. I don't think this is a problem as a battery applied straight to the motor provides great acceleration.
Regards
Jeff
Comments
Regards
Jeff