Revision to Using servos and controlling unused IO pins
| * Ensure that the Duet can supply the stall current. | |
| - | * Either be very careful not to command the servo beyond its working range, or else command the servo to move, hold it for a short time, then use M280 P# S0 to stop commanding the servo. |
| + | * Either be very careful not to command the servo beyond its working range, or else command the servo to move, hold it for a short time, then use M280 P# S0 to stop commanding the servo (replace # by the pin number or GpOut number as usual). |
| === Regenerative braking === | |
| === Recommendations === | |
| - | In all cases, problems can be avoided by, either: |
| - | |
| - | * connecting a Schottky diode between Duet +5V output and the servo +5V power input, and a 220uF capacitor between servo +5V and servo ground; or |
| - | * powering the servo from a separate +5 supply. |
| + | * 5V rail voltage rise due to regenerative braking can be solved by connecting a Schottky diode between Duet +5V output and the servo +5V power input, and a 220uF capacitor between servo +5V and servo ground |
| + | * Both issues can be avoided by powering the servo from a separate +5 supply. |
| ==== Duet board 5V current limit ==== | |
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