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syssi / esphome-jk-bms

ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE
Apache License 2.0
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Multiple RS485 masters possible? #187

Closed Salve87 closed 2 years ago

Salve87 commented 2 years ago

Hey guys I‘m totally new to the rs485 world.

Currently I’m using the rs485 adapter to communicate to the Venus os via usb

i would love to add a esp to view the data via wifi. how can I add the esp, to the existing configuration? Pictures would be great

regards

syssi commented 2 years ago

You cannot have two RS485 masters on a single bus. I assume you will confuse the VenusOS implementation if you add a second master to the RS485 bus. You could try to add the ESP as passive component (RX-only) to the bus. In best case the ESPHome implementation is able to recycle/decode the responses on the bus requested by VenusOS.