4. 舵机拓展版接上电连上这两个电机，使用示例程序测试只有中间的电机正常动红色圈的那边电机没反应，然后电机对调重复测试结果相同
  • OpenMV VSCode 扩展发布了，在插件市场直接搜索OpenMV就可以安装
  • 如果有产品硬件故障问题，比如无法开机，论坛很难解决。可以直接找售后维修。
  • 发帖子之前，请确认看过所有的视频教程，https://singtown.com/learn/ 和所有的上手教程http://book.openmv.cc/
  • 每一个新的提问，单独发一个新帖子
  • 帖子需要目的，你要做什么？
  • 如果涉及代码，需要报错提示与全部代码文本，请注意不要贴代码图片
  • 必看：玩转星瞳论坛了解一下图片上传，代码格式等问题。

    • 舵机拓展版接上电连上这两个电机，使用示例程序测试只有中间的电机正常动红色圈的那边电机没反应，然后电机对调重复测试结果相同

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      0_1g

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    • 用的什么代码。发一下具体的代码文本。

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       1 条回复
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      # Motor Shield PWM Example
#
# This example shows off how to control the motor shield on your
# OpenMV Cam. The motor shield is controlled by using the PYB module
# which lets you do PWM to control the speed and set digital I/O pin
# states. The motor shield needs 6 I/O pins for both motors.

import pyb

# These pins control our direction while the other PWN pins
# below control the speed. The direction for each motor
# is set by an H-Bridge where A0/1 are the two sides of
# one H-Bridge driver. B0/1 are another H-Bridge.
pinADir0 = pyb.Pin('P3', pyb.Pin.OUT_PP, pyb.Pin.PULL_NONE)
pinADir1 = pyb.Pin('P2', pyb.Pin.OUT_PP, pyb.Pin.PULL_NONE)
pinBDir0 = pyb.Pin('P1', pyb.Pin.OUT_PP, pyb.Pin.PULL_NONE)
pinBDir1 = pyb.Pin('P0', pyb.Pin.OUT_PP, pyb.Pin.PULL_NONE)

# Dir0/1 must be not equal to each other for forward or backwards
# operation. If they are equal then that's a brake operation.
# If they are not equal then the motor will spin one way other the
# other depending on it's hookup and the value of dir 0.
pinADir0.value(0)
pinADir1.value(1)

# Dir0/1 must be not equal to each other for forward or backwards
# operation. If they are equal then that's a brake operation.
# If they are not equal then the motor will spin one way other the
# other depending on it's hookup and the value of dir 0.
pinBDir0.value(0)
pinBDir1.value(1)

# Create a timer object running at 1KHz which which will power the
# PWM output on our OpenMV Cam. Just needs to be created once.
tim = pyb.Timer(4, freq=1000)

# Use the timer object to create two PWM outputs on the OpenMV Cam.
# These timers control the speed of the motors. You will be setting
# the PWM percentage of these timers repeatedly in your loop.
chA = tim.channel(1, pyb.Timer.PWM, pin=pyb.Pin("P7"))
chB = tim.channel(2, pyb.Timer.PWM, pin=pyb.Pin("P8"))

while (True):

    for i in range(100):
        pyb.delay(100)
        chA.pulse_width_percent(i)
        chB.pulse_width_percent(99-i)

    for i in range(100):
        pyb.delay(100)
        chA.pulse_width_percent(99-i)
        chB.pulse_width_percent(i)
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      @kidswong999

      # Motor Shield PWM Example
#
# This example shows off how to control the motor shield on your
# OpenMV Cam. The motor shield is controlled by using the PYB module
# which lets you do PWM to control the speed and set digital I/O pin
# states. The motor shield needs 6 I/O pins for both motors.

import pyb

# These pins control our direction while the other PWN pins
# below control the speed. The direction for each motor
# is set by an H-Bridge where A0/1 are the two sides of
# one H-Bridge driver. B0/1 are another H-Bridge.
pinADir0 = pyb.Pin('P3', pyb.Pin.OUT_PP, pyb.Pin.PULL_NONE)
pinADir1 = pyb.Pin('P2', pyb.Pin.OUT_PP, pyb.Pin.PULL_NONE)
pinBDir0 = pyb.Pin('P1', pyb.Pin.OUT_PP, pyb.Pin.PULL_NONE)
pinBDir1 = pyb.Pin('P0', pyb.Pin.OUT_PP, pyb.Pin.PULL_NONE)

# Dir0/1 must be not equal to each other for forward or backwards
# operation. If they are equal then that's a brake operation.
# If they are not equal then the motor will spin one way other the
# other depending on it's hookup and the value of dir 0.
pinADir0.value(0)
pinADir1.value(1)

# Dir0/1 must be not equal to each other for forward or backwards
# operation. If they are equal then that's a brake operation.
# If they are not equal then the motor will spin one way other the
# other depending on it's hookup and the value of dir 0.
pinBDir0.value(0)
pinBDir1.value(1)

# Create a timer object running at 1KHz which which will power the
# PWM output on our OpenMV Cam. Just needs to be created once.
tim = pyb.Timer(4, freq=1000)

# Use the timer object to create two PWM outputs on the OpenMV Cam.
# These timers control the speed of the motors. You will be setting
# the PWM percentage of these timers repeatedly in your loop.
chA = tim.channel(1, pyb.Timer.PWM, pin=pyb.Pin("P7"))
chB = tim.channel(2, pyb.Timer.PWM, pin=pyb.Pin("P8"))

while (True):

    for i in range(100):
        pyb.delay(100)
        chA.pulse_width_percent(i)
        chB.pulse_width_percent(99-i)

    for i in range(100):
        pyb.delay(100)
        chA.pulse_width_percent(99-i)
        chB.pulse_width_percent(i)
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    • 估计是你OpenMV焊接的不对，联系售后检查维修。

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