MMM-Swipe - Hand gestures

Mitchfarino

@mochman I’m only just back looking at this

Any tutorial I find online says I need a breadboard too - is that correct?

What pins should put these in? Or where can I find resource on how to do it?

mochman

@BeLuGe So I just tried this myself. When I created the module, I was connected to the pi to test. I just tried using SSH to start the program and got the same error you’re getting. Looks like it’s a issue with running a sudo command over SSH, the workaround I found was to run sudo cp ~/.Xauthority /root/ then run DISPLAY=:0 sudo npm start. The problem with this is that everytime you restart your mirror you will need to run the copy command again.

@Mitchfarino You don’t need a breadboard. I just used one to test out my configuration. You can hook it up directly to the pi using those wires you have already connected. When I tested out my setup, I used these pins.

echoLeftPin: 24,       
triggerLeftPin: 23,     
echoRightPin: 26,      
triggerRightPin: 25,

Remember that those are the GPIO #'s and not the physical pin #.

Mitchfarino

@mochman I have vcc, trig, echo and gnd on my sensor - how do they map to the config you have posted?

mochman

@Mitchfarino

Your left sensor

Vcc goes to pin #2
Gnd goes to pin #6
Trig goes to physical pin #26 (Which is labeled GPIO 23)
Echo goes to physical pin #18 (Which is labeled GPIO 24)

Your right sensor

Vcc goes to pin #4
Gnd goes to pin #9
Trig goes to physical pin #22 (Which is labeled GPIO 25)
Echo goes to physical pin #37 (Which is labeled GPIO 26)

You need both sensors if you want to detect movement.

Mitchfarino

@mochman OK, I’m an idiot!

I only have one sensor! Ha

Thanks very much for your help, I’m gonna get one ordered then get back on it.

Sorry for the daft questions

mochman

No worries. Yeah the sensor looks like it has 2 detectors on it. I’m pretty sure one is the speaker and the other is the microphone detector.

BeLuGe

@mochman when I use your workaround i get the following errormessage and a whitescreen:

Loading config ...
Loading module helpers ...
No helper found for module: alert.
Initializing new module helper ...
WARNING! Could not load config file. Starting with default configuration. Error found: Error: Module version mismatch. Expected 49, got 48.
Loading module helpers ...
No helper found for module: alert.
Initializing new module helper ...
App threw an error during load
Error: Module version mismatch. Expected 49, got 48.
    at Error (native)
    at process.module.(anonymous function) [as dlopen] (ELECTRON_ASAR.js:167:20)
    at Object.Module._extensions..node (module.js:568:18)
    at Object.module.(anonymous function) [as .node] (ELECTRON_ASAR.js:167:20)
    at Module.load (module.js:458:32)
    at tryModuleLoad (module.js:417:12)
    at Function.Module._load (module.js:409:3)
    at Module.require (module.js:468:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/MMM-Swipe/node_modules/mmm-usonic/lib/usonic.js:5:14)
Whoops! There was an uncaught exception...
Error: Module version mismatch. Expected 49, got 48.
    at Error (native)
    at process.module.(anonymous function) [as dlopen] (ELECTRON_ASAR.js:167:20)
    at Object.Module._extensions..node (module.js:568:18)
    at Object.module.(anonymous function) [as .node] (ELECTRON_ASAR.js:167:20)
    at Module.load (module.js:458:32)
    at tryModuleLoad (module.js:417:12)
    at Function.Module._load (module.js:409:3)
    at Module.require (module.js:468:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/pi/MagicMirror/modules/MMM-Swipe/node_modules/mmm-usonic/lib/usonic.js:5:14)
MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
If you think this really is an issue, please open an issue on GitHub: 
https://github.com/MichMich/MagicMirror/issues
Launching application.

mochman

Can you make another config.js file with just the MMM-Swipe module in there? I don’t know what the:
WARNING! Could not load config file. Starting with default configuration. Error found: Error: Module version mismatch. Expected 49, got 48. means.

BeLuGe

@mochman I change the config file to default and add your Module. The same errormessage.

mochman

@BeLuGe Try running rm -rf node_modules/ inside the MMM-Swipe folder then running npm install again.