#openevse — Public Fediverse posts

OK.... *deep breath*

I think this is now at a level where it can be tested

#OpenEVSE #HomeAssistant #NodeRED,

https://forgejo.insearchofportlandia.com/Aminorjourney/Node_RED_Open_EVSE_Load_Sharing

Please share and comment and be kind? ;)

And that's called Load Sharing ;)

TLDR: I've been working on a way of using #HomeAssistant to replicate the #loadsharing functionality of our #OpenEVSE charging stations using #nodeRED. So far, so good ;)

There are quite a few rules:

1) If one of the stations ‘goes offline' - ie it drops off the network, we assume it's pulling its maximum current, and restrict the other one to 6 Amps.

2) Both stations default to 6A when charging has finished, regardless of if there's a second vehicle connected. 6A is the minimum because if we go to 0, it can cause the car or the station to not properly detect they're connected.

3) The system looks at the current being drawn and the limit set, if the current draw is more than 2A lower than the limit, it'll drop the current limit, and allow the OTHER station to get MORE current.

4) They're not allowed more than 40A between them :)

Should I put it on GitHub?

@chris @YurkshireLad Strong recommendation for #openevse charger at ~USD600. Far and away the best if you're even slightly tech-DIY inclined.

https://www.openevse.com/ somewhat obviously...

I just found out about #openEVSE Electric Vehicle Support Environment.

Does anyone know if it will work with the coming-soon #Aptera vehicle.

Aptera has called itself "open" and it says they will charge from tesla stations.

https://openevse.com/index.html
https://natematias.com/portfolio/2025-08-22-unchaining-from-broken-software-tethers/

#ev #foss #floss #opensource #openHardware

Oft. I'm trying to learn NodeRed and integrate it into #HomeAssistant for #OpenEVSE charging control, and oh boy I feel stupid ;)

Well, this is fun. #OpenEVSE hasn't replied to my ticket that was opened more than 24 hours ago, and it turns out that a third part was missing from the LCD board, the diode that sits on the RX line.

I'm not hopeful that I'll get a replacement board anytime soon.

Yes, I can fix it, and get it working, but if I'm paying big $$ for it, I want something that I know will work long term, not might fail in the next months when another component fail/falls off.

Ditched my Chargemaster charger and installed an #openevse one. Chargemaster was 'digital' in that it was on or off. This will let me divert excess solar into the car thanks to #homeassistant, and I might put an #esp32 into the car as well to log SoC :)

As I was swapping the charger, the wiring was very simple, the hardest part was getting the old charger off the wall.

Pourquoi faut-il toujours trimballer son câble Type 2 en plus du câble constructeur ? Pourquoi tout ça n’est pas mieux foutu ?

Un essai sur comment charger une voiture électrique et pourquoi aujourd’hui c’est assez mal foutu juste parce que les câbles ne sont pas pensés comme il faudrait.

https://blog.libertus.eu/vehicules-electriques-et-evse/

#EVSE #OpenEVSE #VehiculeÉlectrique #ElectricVehicle

Modernizing an Outdated Electric Vehicle Charging Station - One of the drawbacks of being an early adopter is that you might end up investing ... - https://hackaday.com/2022/06/12/modernizing-an-outdated-electric-vehicle-charging-station/ #transportationhacks #chargepoint #evcharger #openevse

OpenEVSE provides open source EV charging stations ready to use, in kit form, or just parts

OpenEVSE supplies open source charging station hardware and software solutions to manufactures and individuals. OpenEVSE SAE J1772 compatible charging station controllers are available in quantities of 1 to 10,000+ for requirements big or small. OpenEVSE controllers allows manufactures to bring their products to market sooner at a lower cost than designing from scratch.
OpenEVSE features open standards based protocols, control your station... Automate your home... You control your station and your data:
* Energy Monitoring
* Setup and control over WiFi
* Automate with MQTT
* Real-time Solar Diversion
* Open APIs
Source Code for OpenEVSE hardware and firmware is available on Github.
See OpenEVSE - Electric Vehicle Charging Solutions

https://www.openevse.com/ https://squeet.me/objects/962c3e10c2dd6bb0d139aaff2660befc85c5c76a