qub1750ul/arduino_l293

Arduino library that allows to control electric motors with the L293x and L298x compatible modules

Hi there 👋

arduino_l293's Issues

Can this be used to run IC with two PWM inputs

Hi qub1750ul,

Is it possible to use this library to run two DC motor drivers (such as the DRV8870) that use two PWM inputs to control speed and direction?

I assume it could work with the 3 wire setup and just ignore the enable input.

Regards and have a great day.
George

Won't compile, Arduino IDE 1.8.5

The examples won't compile. Installed via library manager in Arduino IDE 1.8.5.

Error Code:
Arduino: 1.8.5 (Windows 10), Board: "Arduino Nano, ATmega328P"

In file included from C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293.h:15:0,

from C:\Users\MrX\Documents\Arduino\libraries\L293\examples\MotorControl_Demo\MotorControl_Demo.ino:44:

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.hpp:20:16: warning: inline function 'virtual void L293::forward(uint8_t)' used but never defined

inline void forward( uint8_t _PWMDC = 0 ) override ; ///< Makes the motor to go forward and sets a new speed value

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.hpp:21:16: warning: inline function 'virtual void L293::back(uint8_t)' used but never defined

inline void back( uint8_t _PWMDC = 0 ) override ; ///< Makes the motor to go reverse and sets a new speed value

In file included from C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.hpp:3:0,

from C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293.h:15,

from C:\Users\MrX\Documents\Arduino\libraries\L293\examples\MotorControl_Demo\MotorControl_Demo.ino:44:

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_base.hpp:19:18: warning: inline function 'void L293_base::stop() const' used but never defined

inline void stop() const ; ///< Stops the motor by power reduction

In file included from C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293.h:15:0,

from C:\Users\MrX\Documents\Arduino\libraries\L293\examples\MotorControl_Demo\MotorControl_Demo.ino:44:

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.hpp:22:16: warning: inline function 'virtual bool L293::isForward() const' used but never defined

inline bool isForward() const override ; ///< Tells the information about the motor that the name says

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.hpp:23:16: warning: inline function 'virtual bool L293::isReverse() const' used but never defined

inline bool isReverse() const override ; ///< Tells the information about the motor that the name says

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.hpp:24:16: warning: inline function 'virtual bool L293::isStopped() const' used but never defined

inline bool isStopped() const override ; ///< Tells the information about the motor that the name says

In file included from C:\Users\MrX\Documents\Arduino\libraries\L293\src\L293_std.hpp:3:0,

from C:\Users\MrX\Documents\Arduino\libraries\L293\src\L293_std.cpp:1:

C:\Users\MrX\Documents\Arduino\libraries\L293\src\L293_base.hpp:19:18: warning: inline function 'void L293_base::stop() const' used but never defined

inline void stop() const ; ///< Stops the motor by power reduction

C:\Users\MrX\Documents\Arduino\libraries\L293\src\L293_base.hpp:21:19: warning: inline function 'uint8_t L293_base::getPWMDC() const' used but never defined

inline uint8_t getPWMDC() const ; ///< Return the effective last set speed value

In file included from C:\Users\MrX\Documents\Arduino\libraries\L293\src\L293_twoWire.hpp:3:0,

from C:\Users\MrX\Documents\Arduino\libraries\L293\src\L293_twoWire.cpp:1:

C:\Users\MrX\Documents\Arduino\libraries\L293\src\L293_base.hpp:19:18: warning: inline function 'void L293_base::stop() const' used but never defined

inline void stop() const ; ///< Stops the motor by power reduction

C:\Users\MrX\Documents\Arduino\libraries\L293\src\L293_base.hpp:21:19: warning: inline function 'uint8_t L293_base::getPWMDC() const' used but never defined

inline uint8_t getPWMDC() const ; ///< Return the effective last set speed value

Archiving built core (caching) in: C:\Users\MrX\AppData\Local\Temp\arduino_cache_986469\core\core_arduino_avr_nano_cpu_atmega328_0c812875ac70eb4a9b385d8fb077f54c.a
C:\Users\MrX\AppData\Local\Temp\ccJ1F5xU.ltrans0.ltrans.o: In function `L293::back(unsigned char)':

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.cpp:39: undefined reference to `L293_base::stop() const'

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.cpp:42: undefined reference to `L293_base::getPWMDC() const'

C:\Users\MrX\AppData\Local\Temp\ccJ1F5xU.ltrans0.ltrans.o: In function `L293::forward(unsigned char)':

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.cpp:29: undefined reference to `L293_base::stop() const'

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.cpp:32: undefined reference to `L293_base::getPWMDC() const'

C:\Users\MrX\AppData\Local\Temp\ccJ1F5xU.ltrans0.ltrans.o: In function `L293::~L293()':

C:\Users\MrX\Documents\Arduino\libraries\L293\src/L293_std.hpp:11: undefined reference to `L293_base::~L293_base()'

C:\Users\MrX\AppData\Local\Temp\ccJ1F5xU.ltrans0.ltrans.o: In function `loop':

C:\Users\MrX\Documents\Arduino\libraries\L293\examples\MotorControl_Demo/MotorControl_Demo.ino:76: undefined reference to `L293_base::stop() const'

collect2.exe: error: ld returned 1 exit status

exit status 1
Error compiling for board Arduino Nano.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Drivin EN with PWM won't work

Please read here why it is a bad idea to use the enable pin for pwm control:

https://electronics.stackexchange.com/questions/114796/using-l293-h-bridge-to-drive-dc-motor-with-pwm