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nebrius / raspi-pwm

Provides access to PWM on the Raspberry Pi from Node.js
MIT License
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Raspberry pi 4 Model B doesn't work. #5

Closed MasahiroHanawa closed 2 years ago

MasahiroHanawa commented 4 years ago

When I try to use this module on Raspberry pi 4 Model Bm I got this error. Can you tell me how to fix it?

` Unknown board revision b03112, assuming Raspberry Pi Zero/2/3 pinout. Unless you are running a compute module or very old RPi this should work fine. Please report this board revision in a GitHub issue at https://github.com/nebrius/raspi-board. Unknown board revision b03112, assuming Raspberry Pi 3 Model B+ pinout. Unless you are running a compute module or very old RPi this should work fine. Please report this board revision in a GitHub issue at https://github.com/nebrius/raspi-board. /home/pi/Documents/Development/move_motor_test/node_modules/raspi-pwm/dist/index.js:128 throw new Error("Invalid PWM duty cycle " + dutyCycle); ^

Error: Invalid PWM duty cycle 40 at PWM.write (/home/pi/Documents/Development/move_motor_test/node_modules/raspi-pwm/dist/index.js:128:19) at /home/pi/Documents/Development/move_motor_test/index.js:7:6 at processTicksAndRejections (internal/process/task_queues.js:79:11) `

nebrius commented 4 years ago

Hi @MasahiroHanawa. I updated raspi-board to include your board revision. If you run npm upgrade that first message should go away now.

Regarding the duty cycle, 40 is not a valid duty cycle. The duty cycle needs to be a value between 0 and 1. If you want a duy cycle of 40%, you should pass in 0.4.

kj800x commented 2 years ago

I'm also seeing this issue:

Unknown board revision c03112, assuming Raspberry Pi 3 Model B+ pinout. Unless you are running a compute module or very old RPi this should work fine. Please report this board revision in a GitHub issue at https://github.com/nebrius/raspi-board.

which should similarly be fixed if the latest version of raspi-board (7.4.0) was being used, but it looks like npm is using raspi-board@5.3.1 since raspi-pwm@latest depends on raspi-peripheral@^2.0.1 which depends on raspi-board@^5.0.0 so the highest version of raspi-board that can be chosen is 5.3.1.

I'm guessing the best solution would just be to publish a new version of raspi-pwm that depends on the latest version of raspi-peripheral (3.0.4), since that version depends on raspi-board@^7.1.2 which would let npm install raspi-board@7.4.0

package.json

{
  "name": "pressure-test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "npm run build && node lib/index.js",
    "build": "tsc --build"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "typescript": "4.4.3"
  },
  "dependencies": {
    "i2c-bus": "5.2.2",
    "raspi": "6.0.1",
    "raspi-pwm": "6.0.0"
  }
}

package-lock.json

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  "name": "pressure-test",
  "version": "1.0.0",
  "lockfileVersion": 1,
  "requires": true,
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    "i2c-bus": {
      "version": "5.2.2",
      "resolved": "https://registry.npmjs.org/i2c-bus/-/i2c-bus-5.2.2.tgz",
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    },
    "pigpio": {
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      "requires": {
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        "raspi-board": "^7.0.0"
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    },
    "raspi-board": {
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      "requires": {
        "j5-io-types": "^2.4.0"
      }
    },
    "raspi-peripheral": {
      "version": "2.0.1",
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      "requires": {
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      },
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          "version": "5.3.1",
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        }
      }
    },
    "raspi-pwm": {
      "version": "6.0.0",
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      "requires": {
        "pigpio": "^1.0.0",
        "raspi-peripheral": "^2.0.1"
      }
    },
    "typescript": {
      "version": "4.4.3",
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      "dev": true
    }
  }
}
nebrius commented 2 years ago

FYI this module has been deprecated in favor of https://github.com/nebrius/raspi-soft-pwm/. Seeing as I forgot to actually run npm deprecate on it before today though, I went ahead and bumped the dependency to get rid of this error.