Go Down

Topic: Project 10: How do H-bridge pins work? (Read 962 times) previous topic - next topic

Gorduino283

http://www.ti.com/lit/ds/symlink/l293.pdf

I found this link, but it's gibberish to me.  What do each of the pins do?

Here's what I figured out.  Let me know if it's correct:

1) 5V into pin 16 powers the H-bridge, but not the motor.
2) H-bridge is inactive until pin 1 receives a HIGH from the Arduino.
3) If pin 1 and pin 2 are HIGH, the 9V (sourced from pin 8) will supply power to pin 3.
4) If pin 1 and pin 7 are HIGH, the 9V (sourced from pin 8) will supply power to pin 6.
5) Pin 4 and 5 are ground.

Go Up