Servo

Servo is a small motor with arm that can be pointing at a specific direction. Typically a servo angle is between 0° and 180° where 90° is the middle resting position.

The min_pulse/max_pulse may be read-only if the servo is permanently affixed to its Jacdac controller.

import { Servo } from "@devicescript/core"

const servo = new Servo()

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Registers

angle

Specifies the angle of the arm (request).

• read and write

import { Servo } from "@devicescript/core"

const servo = new Servo()

const value = await servo.angle.read()
await servo.angle.write(value)

• track incoming values

import { Servo } from "@devicescript/core"

const servo = new Servo()

servo.angle.subscribe(async (value) => {
    ...
})

enabled

Turn the power to the servo on/off.

• read and write

import { Servo } from "@devicescript/core"

const servo = new Servo()

const value = await servo.enabled.read()
await servo.enabled.write(value)

• track incoming values

import { Servo } from "@devicescript/core"

const servo = new Servo()

servo.enabled.subscribe(async (value) => {
    ...
})

offset

Correction applied to the angle to account for the servo arm drift.

• read and write

import { Servo } from "@devicescript/core"

const servo = new Servo()

const value = await servo.offset.read()
await servo.offset.write(value)

• track incoming values

import { Servo } from "@devicescript/core"

const servo = new Servo()

servo.offset.subscribe(async (value) => {
    ...
})

minValue

Lowest angle that can be set, typically 0 °.

• read only

import { Servo } from "@devicescript/core"

const servo = new Servo()

const value = await servo.minValue.read()

minPulse

The length of pulse corresponding to lowest angle.

• read and write

import { Servo } from "@devicescript/core"

const servo = new Servo()

const value = await servo.minPulse.read()
await servo.minPulse.write(value)

• track incoming values

import { Servo } from "@devicescript/core"

const servo = new Servo()

servo.minPulse.subscribe(async (value) => {
    ...
})

maxValue

Highest angle that can be set, typically 180°.

• read only

import { Servo } from "@devicescript/core"

const servo = new Servo()
// ...
const value = await servo.maxValue.read()

maxPulse

The length of pulse corresponding to highest angle.

• read and write

import { Servo } from "@devicescript/core"

const servo = new Servo()

const value = await servo.maxPulse.read()
await servo.maxPulse.write(value)

• track incoming values

import { Servo } from "@devicescript/core"

const servo = new Servo()

servo.maxPulse.subscribe(async (value) => {
    ...
})

stallTorque

The servo motor will stop rotating when it is trying to move a stall_torque weight at a radial distance of 1.0 cm.

• read only

import { Servo } from "@devicescript/core"

const servo = new Servo()

const value = await servo.stallTorque.read()

responseSpeed

Time to move 60°.

• read only

import { Servo } from "@devicescript/core"

const servo = new Servo()

const value = await servo.responseSpeed.read()

reading

The current physical position of the arm, if the device has a way to sense the position.

• read only

import { Servo } from "@devicescript/core"

const servo = new Servo()

const value = await servo.reading.read()

• track incoming values

import { Servo } from "@devicescript/core"

const servo = new Servo()

servo.reading.subscribe(async (value) => {
    ...
})

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help

The "deviceScript" contains more information that can be helpful in answering questions related to the device. You can refer to it for better understanding and troubleshooting.