Basic question about L293D, which I could not find a clear answer by searching the internet.
Still learning with my arduino project. The examples are good at describing how to use things and how to wire them all up. What is missing is why we use some of the components.
I see these are the benefits of using L239D:
• Wide Supply-Voltage Range: 4.5 V to 36 V
• Separate Input-Logic Supply
• Internal ESD Protection
• Thermal Shutdown
• High-Noise-Immunity Inputs
• Functionally Similar to SGS L293 and SGS L293D
• Output Current 1 A Per Channel (600 mA for L293D)
• Peak Output Current 2 A Per Channel (1.2 A for L293D)
• Output Clamp Diodes for Inductive Transient Suppression (L293D)
While these above things sound nice, I don't think any are useful (maybe high noise immunity)
I saw an example of powering a DC motor without L293D by only using the PWM pin on the arduino to specify the voltage (which is controls the speed of the motor)
Is there any good reason to use L293D if I don't need to reverse the motor but only control motor speed?