Description
The “Servo” object is used to interface with servos used with the builder base. You can do this by passing the servo object a number through the “Degrees” ports. The other two ports, “0 Offsets” and “180 Offsets” are reserved for modifying and calibrating the Servo’s range of motion.
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App Builder Object
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Drivers
GPIO | |
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PCA9685 | |
TLC5940 |
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In Ports
Position | Name | Message Type | Description |
|---|---|---|---|
1 | Degrees | Number | The position in degrees of where the servo arm will move. |
2 | 0 Offsets | Number | The 0 Offsets is used to calibrate the position of a servo on the 0 degrees end of the position range. |
3 | 180 Offsets | Number | The 180 Offsets is used to calibrate the position of a servo on the 180 degrees end of the position range. |
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The same is true with the 180 offsets port. If the servo moves to a position less than 180 degrees, you can extend its range with a positive number, and if it moves more than the 180 degrees you can limit its range by feeding the port a negative number.
Here is a GIF detailing the calibration process:
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To properly do the initial adjustment for the servo, the arm should be attached to a 90 degree position when the servo degrees are at 90 as well. Then, when we go to for example 0 and the servo does not do total negative 90 degree movement, we can adjust wi with the 0 offset port. Here we can enter an number between 0 -30 and 30. If the server moves not far enough, we can extend its range with a positive number and in case it overshoots, we can hold it back with a negative number. The same is valid for the 180 degree position, just that we use the 180 offset port here.
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Out Ports
Position | Name | Message Type | Description |
|---|---|---|---|
- | - | - | - |
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