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Update StepperModes.md

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@ -4,18 +4,17 @@ A typical stepper motor has two sets of coils, *A* and *B*. Applying a current
#### FULL_STEP_TWO_PHASE
In this mode, a constant current is applied to both coils *A* and *B*. The motor is then stepped by alternatively flipping the direction of the current flow (from "positive" to "negative") in the *A* coil, then the *B* coil, as follows:
In this mode, a constant current is applied to both coils *A* and *B*. The motor is then stepped by alternatively flipping the direction of the current flow (from "positive" to "negative") in the *A* coil, then the *B* coil, as follows:
<img width="290" alt="image" src="https://github.com/HomeSpan/HomeSpan/assets/68477936/8bea7031-7325-4ded-8ebd-5554d8f1e13d">
This is called a two-phase mode becuase both coils (phases) of the motor are powered at the same time. Note that though the pattern repeats after four steps, it is not symmetrical - running the pattern from left to right causes the motor to rotate in one direction, whereas running the pattern from right to left will cause it to rotate in the opposite direction. Many stepper motors are constructed to have 200 full steps, which means you need to repeat the above pattern 25 times to cause the motor to complete a single revolution.
One advantage of the **FULL_STEP_TWO_PHASE** mode is that it is easy to implement since you only need a single digital signal to control the direction
<img width="291" alt="image" src="https://github.com/HomeSpan/HomeSpan/assets/68477936/cbf2fea5-072e-4fef-9231-504bb483b0c0"><br>
<img width="434" alt="image" src="https://github.com/HomeSpan/HomeSpan/assets/68477936/ec317c77-fbd9-4641-9d50-d822b477c9ec"><br>
<img width="505" alt="image" src="https://github.com/HomeSpan/HomeSpan/assets/68477936/75a6176b-b5b4-4b85-a394-a4d6e1f9bf3d"><br>