MMM-usonic Problems

sdetweil

so rn i did the install in the /home/pi/node_modules

what install?

MMM_Swipe (https://github.com/mochman/MMM-Swipe)

already lists that dependency in package.json

  "dependencies": {
    "math-statistics": "latest",
    "mmm-usonic": "latest",
    "mmm-gpio": "latest"
  },

and lists that file in node_helper.js

const usonic = require('mmm-usonic');

the install instructions say

1. Navigate into your MagicMirror's modules folder and execute git clone https://github.com/mochman/MMM-Swipe.git. A new folder labeled MMM-Swipe will appear, cd into it.

2 Execute npm install to install the dependencies

if u are adding a library to a module, then in the module folder

/home/pi/MagicMirror/modules/module_name   (MMM-Swipe in this case)

you would do

npm install --save mmm-usonic

if all of that is ok, then sometimes a module ships a library that is built on a specific level of electron,
and our is different…
so do

cd ~/MagicMirror
npm install electron-rebuild
node_modules/.bin/electron-rebuild

to rebuild the used libraries to match the installed electron version

sgarg15

@sdetweil
So i tried redownloading the module andi get this error when i npm install

> electron-rebuild -e ../../node_modules/electron-prebuilt


An unhandled error occurred inside electron-rebuild
Unable to find electron's version number, either install it or specify an explicit version

Error: Unable to find electron's version number, either install it or specify an explicit version
    at /home/pi/MagicMirror/modules/MMM-Swipe/node_modules/electron-rebuild/lib/src/cli.js:86:19
    at Generator.next (<anonymous>)
    at fulfilled (/home/pi/MagicMirror/modules/MMM-Swipe/node_modules/electron-rebuild/lib/src/cli.js:6:58)
npm ERR! code ELIFECYCLE
npm ERR! errno 255
npm ERR! MMM-Swipe@1.1.1 postinstall: `electron-rebuild -e ../../node_modules/electron-prebuilt`
npm ERR! Exit status 255
npm ERR! 
npm ERR! Failed at the MMM-Swipe@1.1.1 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

it says it cant find the electron version number, but idk how to fix it

sgarg15

@sdetweil
Any ideas?

sdetweil

@sgarg15 maybe can look tomorrow, not home now

sdetweil

@sdetweil that module (mmm-usonic) is not for magic mirror, but a library for a potential module to use to talk to the hardware…

sadly has same labeling and same verbiage (module)

he wrote MMM-Swipe, which uses his library (mmm-usonic)

sdetweil

@sgarg15 to fix the electron rebuild problem,

the package.json file in MMM-Swipe and change

this

    "postinstall": "node_modules/.bin/electron-rebuild -e ../../node_modules/electron-prebuilt"

to this

    "postinstall": "node_modules/.bin/electron-rebuild"

sgarg15

@sdetweil So the install worked properly but then when i ran sudo npm start it gave this error

[1580:0329/130746.224199:FATAL:electron_main_delegate.cc(211)] Running as root without --no-sandbox is not supported. See https://crbug.com/638180.

Any idea what that means?

sdetweil

@sgarg15 what version of electron are u running?

sdetweil

@sgarg15 do NOT use sudo, just npm start

sgarg15

@sdetweil I am pretty sure i updated the electron yesterday using npm install --save-dev electron@latest

sdetweil

@sgarg15 do not use sudo

sgarg15

@sdetweil Oh ok i was just following the instruction, so i used npm start and now it has another error

[13:13:56.836] [LOG]    Error: unknown hardware: "BCM2835"
    at /home/pi/MagicMirror/modules/MMM-Swipe/node_modules/mmm-gpio/lib/gpio.js:34:29
    at ChildProcess.exithandler (child_process.js:299:7)
    at ChildProcess.emit (events.js:210:5)
    at maybeClose (internal/child_process.js:1021:16)
    at Socket.<anonymous> (internal/child_process.js:430:11)
    at Socket.emit (events.js:210:5)
    at Pipe.<anonymous> (net.js:658:12)
[13:13:56.862] [LOG]    Error: unknown hardware: "BCM2835"
    at /home/pi/MagicMirror/modules/MMM-Swipe/node_modules/mmm-usonic/lib/usonic.js:34:29
    at ChildProcess.exithandler (child_process.js:299:7)
    at ChildProcess.emit (events.js:210:5)
    at maybeClose (internal/child_process.js:1021:16)
    at Socket.<anonymous> (internal/child_process.js:430:11)
    at Socket.emit (events.js:210:5)
    at Pipe.<anonymous> (net.js:658:12)

Any Ideas?

sdetweil

@sgarg15 something to do with the MMM-Swipe config info

sgarg15

@sdetweil But it is the same as the one in the readMe

readme:

	{
		module: 'MMM-Swipe',
		position: 'bottom_left',	// Doesn't matter after it's setup.  It should be blank.
									// Best results in one of the side regions like: bottom_left
		config: {
			// See 'Configuration options' for more information.
			echoLeftPin: 24, 		//Left Sensor's BCM Numbered Echo pin - REQUIRED
			triggerLeftPin: 23, 	//Left Sensor's BCM Numbered trigger pin - REQUIRED
			echoRightPin: 26, 		//Right Sensor's BCM Numbered Echo pin - REQUIRED
			triggerRightPin: 25, 	//Right Sensor's BCM Numbered trigger pin - REQUIRED
			useAsButton: false,		//Enable a GPIO output when you "press".
			buttonPin: 8,
			verbose: false,		
			calibrate: false	
		}
	}

My config:

	{
		module: 'MMM-Swipe',
		position: 'bottom_left',	// Doesn't matter after it's setup.  It should be blank.
									// Best results in one of the side regions like: bottom_left
		config: {
			// See 'Configuration options' for more information.
			echoLeftPin: 27, 		//Left Sensor's BCM Numbered Echo pin - REQUIRED
			triggerLeftPin: 24, 	//Left Sensor's BCM Numbered trigger pin - REQUIRED
			echoRightPin: 23, 		//Right Sensor's BCM Numbered Echo pin - REQUIRED
			triggerRightPin: 22, 	//Right Sensor's BCM Numbered trigger pin - REQUIRED
			useAsButton: false,		//Enable a GPIO output when you "press".
			buttonPin: 8,
			verbose: true,		
			calibrate: true	
		}
	},

sdetweil

@sgarg15 said in MMM-usonic Problems:

Error: unknown hardware: “BCM2835”
at /home/pi/MagicMirror/modules/MMM-Swipe/node_modules/mmm-usonic/lib/usonic.js:34:29

no idea, you would have to read the code there

sgarg15

@sdetweil so i had a look and apparently this was missing || hardware === 'BCM2835' from else if (hardware === 'BCM2709' || hardware === 'BCM2835') but when i added that now its giving a different error

[14:05:10.212] [ERROR]  Error: EACCES, Permission denied
    at /home/pi/MagicMirror/modules/MMM-Swipe/node_modules/mmm-gpio/lib/gpio.js:30:18
    at ChildProcess.exithandler (child_process.js:299:7)
    at ChildProcess.emit (events.js:210:5)
    at maybeClose (internal/child_process.js:1021:16)
    at Socket.<anonymous> (internal/child_process.js:430:11)
    at Socket.emit (events.js:210:5)
    at Pipe.<anonymous> (net.js:658:12) {
  errno: 13,
  code: 'EACCES',
  syscall: 'init'
}
[14:05:10.252] [LOG]    MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
[14:05:10.254] [LOG]    If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
[14:05:10.276] [LOG]    Whoops! There was an uncaught exception...
[14:05:10.278] [ERROR]  Error: EACCES, Permission denied
    at /home/pi/MagicMirror/modules/MMM-Swipe/node_modules/mmm-usonic/lib/usonic.js:32:20
    at ChildProcess.exithandler (child_process.js:299:7)
    at ChildProcess.emit (events.js:210:5)
    at maybeClose (internal/child_process.js:1021:16)
    at Socket.<anonymous> (internal/child_process.js:430:11)
    at Socket.emit (events.js:210:5)
    at Pipe.<anonymous> (net.js:658:12) {
  errno: 13,
  code: 'EACCES',
  syscall: 'init'
}

sgarg15

@sdetweil after reasearching a bit i dont think this modules works anymore with the new updates of pi and MMM a ssaid here
https://forum.magicmirror.builders/topic/205/mmm-swipe-hand-gestures/32

sdetweil

@sgarg15 looks like the usonic needed sudo mode…too… dumb

welcome to the ‘fun’ part of open source, constantly changing runtimes and volunteer developers

sgarg15

@sdetweil so is this problem solvable or should i find another module?

sdetweil

@sgarg15 no idea… don’t know anything about all that stuff… I’ve seen a few other people doing swipe actions on their mirrors… don’t recognize any big issues, other than its a tediuos setup…