add controll pin to swaping battery BYD original and EV

[diego0078]

hu i have idea about swaping 2 batteries BYD and EV i need controll next 2 Gpio pins

1. swap DC -DC wire
2. swipe comunicatin rellay

Procedure : if 1st battery is full charged then i will stop inverter via modbus od Wsd wait 10 ? sec turn on relay for DC swap
then swap comunication relay (or use aux contact on relay )
only i need next controll gpio pin

i read SOH via homeassistant over TCp/ Sunspes /Fronius integration
if on night is 1st battery discharged swap back
i use liligo T- CAN

what you meen
? @dalathegreat

S

[diego0078]

[Simply-Johann]

That`s not possible AND VERY DANGEROUS...
Never will propose you to fire your house down!

[diego0078]

why? if the inverter is shut down, the software waits 10 seconds, the relay closes with a lock, the BYD and EV battery power supply can never meet, with communication similar
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