Pi-pins Not Working With Electron Project / ClockOS

Product support
1

Hi, I’m trying to read the state of a gpio pin in my project to detect a button push using the recommended setup by Resin with pi-pins and their resin-electronjs project but I’m getting an error when the app tries to start in the Pi, it breaks when it gets to this line https://github.com/iGerli/clockOS/blob/dev/sgerli/app/main.js#L76 , I know that because when I remove that code it doesn’t gives me any error. I think that this error is caused by require-rebuild trying to rebuild one of the dependencies of pi-pins. Any idea on how to fix this?

I’m deploying to a Pi 2 with a ili9341 tft.
All of my code is available on GitHub https://github.com/iGerli/clockOS/tree/dev/sgerli

01.02.17 14:49:16 [-0600] Recompiling node_modules/epoll...
01.02.17 14:49:16 [-0600] App threw an error during load
01.02.17 14:49:16 [-0600] Error: spawnSync node-gyp ENOENT
01.02.17 14:49:16 [-0600] at exports._errnoException (util.js:1026:11)
01.02.17 14:49:16 [-0600] at spawnSync (child_process.js:473:20)
01.02.17 14:49:16 [-0600] at spawnSync (/usr/src/app/node_modules/cross-spawn/index.js:45:14)
01.02.17 14:49:16 [-0600] at Function.Module._load (/usr/src/app/node_modules/require-rebuild/index.js:54:14)
01.02.17 14:49:16 [-0600] at Module.require (module.js:483:17)
01.02.17 14:49:16 [-0600] at require (internal/module.js:20:19)
01.02.17 14:49:16 [-0600] at bindings (/usr/src/app/node_modules/bindings/bindings.js:76:44)
01.02.17 14:49:16 [-0600] at Object.<anonymous> (/usr/src/app/node_modules/epoll/epoll.js:1:116)
01.02.17 14:49:16 [-0600] at Module._compile (module.js:556:32)
01.02.17 14:49:16 [-0600] at Object.Module._extensions..js (module.js:565:10)
01.02.17 14:49:16 [-0600] A JavaScript error occurred in the main process
01.02.17 14:49:16 [-0600] Uncaught Exception:
01.02.17 14:49:16 [-0600] Error: spawnSync node-gyp ENOENT
01.02.17 14:49:16 [-0600] at exports._errnoException (util.js:1026:11)
01.02.17 14:49:16 [-0600] at spawnSync (child_process.js:473:20)
01.02.17 14:49:16 [-0600] at spawnSync (/usr/src/app/node_modules/cross-spawn/index.js:45:14)
01.02.17 14:49:16 [-0600] at Function.Module._load (/usr/src/app/node_modules/require-rebuild/index.js:54:14)
01.02.17 14:49:16 [-0600] at Module.require (module.js:483:17)
01.02.17 14:49:16 [-0600] at require (internal/module.js:20:19)
01.02.17 14:49:16 [-0600] at bindings (/usr/src/app/node_modules/bindings/bindings.js:76:44)
01.02.17 14:49:16 [-0600] at Object.<anonymous> (/usr/src/app/node_modules/epoll/epoll.js:1:116)
01.02.17 14:49:16 [-0600] at Module._compile (module.js:556:32)
01.02.17 14:49:16 [-0600] at Object.Module._extensions..js (module.js:565:10)
2

I’ve seen this discussed on Github.

https://github.com/resin-io/resin-electronjs/issues/36

The result seems to be needing to revert electronjs to an earlier version in package.json, right?

3

Yeah, I read that but they are suggesting electron 1.2.5 but npm isn’t able to find it. (More details in that issue.)

4

Which one was the original commit (what SHA) that your Github link was pointing to? You’ve added changes to the dev/sgerli branch since you wrote this report, and now I’m not sure whether we are checking the same version you were. Would help checking things out, as I see that there are multiple things that you were experimenting with.

5

This was the original one https://github.com/iGerli/clockOS/blob/9d27543d283c5f58aef768524d8611364ff18a92/app/main.js#L76

But I’m still experiencing this in the last one.

6

Checking this out. It seems if I connect to the container after the application starts running and try pi-pins in a separate script, they were totally fine…

@curcuz is debugging it further, it seems like there’s some issue upstream that resin-electronjs need to work around of.

1 Like
7

@imrehg, @sGerli the issue was identified and fixed, expect the PR to be merged soon. Luckily it was an easy fix since the electron-rebuild maintainer fixed the issues that prevented us to rely on that module instead of require-rebuild. This is a big improvement since now the rebuild process happens on the builder at the push phase.

https://github.com/resin-io/resin-electronjs/pull/37

1 Like
8

@sGerli I’ve seen you’ve already incorporated @curcuz’s changes into ClockOS :clock: , very cool! I gave the latest dev commit a try locally, since things were already set up from yesterday’s debugging session).

2017-02-03 10.40.31-min.jpg5376×3752 676 KB

Appears to be working much better, including the button press (just tried one button)

clockos_test.png2175×907 194 KB

Though probably the buttons’ code need some logic / debouncing, a single press triggered multiple events, but I’m guessing that’s more on the library and just mentioning it as a side note :slight_smile: Looking forward to see what you are making! :smiley:

9

Yeah, for now I’m just trying to get things working, thanks.

1 Like
10

Cool project, by the way! I have been tinkering with something similar for a while. (Though it has been a long time since I worked on it – I should pick it back up!) It’s fun to have a clock you can push new code to :slight_smile:

1 Like
11

Yeah, thats why I started this project. I am a Pebble developer so I really like the idea of making apps and making your watch yours.

If you or someone else ever wants to collaborate I’ll be open to PRs and suggestions.

1 Like
12

That’s awesome! (as a Kickstarter Pebble owner :watch:, and small-time (sic) developer:). I was thinking that it would be cool to see where are you headed with the project, what’s the projected form that you’d like to achieve on the long run. :clipboard:

Is there anything that you are looking for help on? Or just suggestions in general? I often see wishlist / help-wanted types of issues working out pretty well, would-be contributors know where to start :construction:. Just a thought.

1 Like
13

Yeah, I’m going to do some planning and create some issues after that.

1 Like