missing python

[gaby64]

I would need python to install onoff node module to control gpio

there seems to be no way to install or build from source anything from within the pre-built images.

[TOLDOTECHNIK]

That's correct. The slimmed down distribution is not meant to compile anything on it. But there's a way to implement the onoff Node.js module.

If you want to build the image on your own, you have to do the following:

• remove the "custom" Node.js binary (rm board/toldotechnik_rpi/rootfs-overlay/usr/bin/node), so the buildroot make process will compile the onoff module against the correct Node.js version
• Enable python (make menuconfig -> Target packages -> Interpreter languages and scripting -> python)
• Add onoff module (Target packages -> Interpreter languages and scripting -> nodejs -> Additional modules -> add onoff)
• Recompile everything with: make clean && make

If you're lazy ;-), you can download a precompiled RPi 3 image here: https://dev.toldotechnik.li/download/sdcardRPi3-Python-onoff.img.zip

Be sure to export NODE_PATH=/usr/lib/node_modules before testing your Node.js application in the terminal.

[gaby64]

thanks, im definitely taking the lazy route, I dont have a linux machine

[TOLDOTECHNIK]

Did you have success with the new build? So we can close the issue.

[gaby64]

yes, altho 1080p playback is choppy and playing such video file from the microsd card leads to complete system unresponsiveness.

Raspberry Pi 3 B+

I decided to just run it as a server and display the webpage on a laptop

the intent is to show a quarry blast and activate a relay to shake the platform on which people stand.