# \#javascript

**URL:** https://community.openenergymonitor.org/tag/javascript/101.md

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## [Emoncms/MySolar Javascript Errors](https://community.openenergymonitor.org/t/emoncms-mysolar-javascript-errors/28675)

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**Author:** [@lurch177](https://community.openenergymonitor.org/u/lurch177)\
**Replies:** 0\
**Last updated:** [29 May 2025 19:09 UTC](https://community.openenergymonitor.org/t/emoncms-mysolar-javascript-errors/28675 "2025-05-29T19:09:21Z")

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I have an eight year old local Emoncms/MySolar system running on a Raspberry Pi and integrated display that I use as a real-time monitor for my home PV installation. It’s been bullet proof all that time, running steadit…

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## [RAPI, Raspberry Pi, and Node-Serialport (nodejs)](https://community.openenergymonitor.org/t/rapi-raspberry-pi-and-node-serialport-nodejs/5642)

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**Author:** [@simoh92](https://community.openenergymonitor.org/u/simoh92)\
**Replies:** 6\
**Last updated:** [15 November 2017 14:20 UTC](https://community.openenergymonitor.org/t/rapi-raspberry-pi-and-node-serialport-nodejs/5642 "2017-11-15T14:20:59Z")

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Hello, I would like to control the 40A Deluxe Level1&2 using a rpi and Node.js, instead of the firmware provided with the wi-fi board. To do so, instead of the wifi board, I connected a rpi3 (using GPIO, not USB) which…

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## [PVOutput.org NodeRed](https://community.openenergymonitor.org/t/pvoutput-org-nodered/779)

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**Author:** [@Vster](https://community.openenergymonitor.org/u/Vster)\
**Replies:** 19\
**Last updated:** [11 October 2017 03:38 UTC](https://community.openenergymonitor.org/t/pvoutput-org-nodered/779 "2017-10-11T03:38:32Z")

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I’ve been using PVOutput.org since my PV solar was installed using a PERL script I wrote to push the data. Now that I’m migrating to EmonBase I’d like to do the same in NodeRed, but the Javascript and the procedural to e…

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## [How to change the background color of visualisations (Multigraph, ...)](https://community.openenergymonitor.org/t/how-to-change-the-background-color-of-visualisations-multigraph/2748)

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**Author:** [@Armin\_P](https://community.openenergymonitor.org/u/Armin_P)\
**Replies:** 0\
**Last updated:** [11 January 2017 16:01 UTC](https://community.openenergymonitor.org/t/how-to-change-the-background-color-of-visualisations-multigraph/2748 "2017-01-11T16:01:25Z")

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Hi! I have installed EmonCMS on an Raspberry Pi and I am verry happy about it. Now I am trying to beautify the dashboards a little bit. First I changed the background color to black. But all the graphs have got a whi…