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helgeerbe / OpenDTU-OnBattery

Software for ESP32 to talk to Hoymiles Inverters and Victrons MPPT battery chargers (Ve.Direct)
GNU General Public License v2.0
287 stars 62 forks source link

[Request] Powerqueen Charger Support #1095

Open itscz-org opened 1 month ago

itscz-org commented 1 month ago

Is your feature request related to a problem? Please describe.

No problem

Describe the solution you'd like

I use two of these 30A bluetooth powerqueen chargers: https://www.ipowerqueen.de/products/power-queen-12-24v-30amp-mppt-solarladeregler-und-bluetooth-adapter

It would be awesome if they could be supported as well in addition to the Victrons. However, there is currently no documentation of the protocol used. I already aksed Powerqueen but they didn't provide any infos.

Their smartphone app is the only piece of software right now that can communicate with these chargers: https://play.google.com/store/apps/details?id=com.ruijing.mppt.pq&hl=de_AT

I am not familiar with bluetooth traffic sniffing to do some reverse engineering on my own. If anyone can guide me i may contribute more infos, but that is all for now.

Describe alternatives you've considered

None

Additional context

None

spcqike commented 1 month ago

Bluetooth may be complicated but the charger should have a rs232 or rs485 port. so that’s something to work with.

Can you capture data from this port and provide it here?

itscz-org commented 1 month ago

It has rs485 but i don't know how to utilize it

itscz-org commented 1 month ago

I ordered an USB-RS485 cable i will try if i can get any infos from it.