Esp 01

[meccip]

Hello,
I am using jkbms with esp01 connected via TTL Rx Tx. The code is esphome-jk-bms from syssi. I am not using Home Asist. Only MQTT data to NodeRed and from there i read data and make some scenarios. I have some question regarding your code.

1. Your code can work on esp01 (considering that need RxTx with jkbms and RxTx with can TJA) ?
2. Can work without Home Asist ?
3. Does send data on MQTT to NodeRed ?
4. I see that you have Battery control with charge/discharge switches. Can be switch ON/OFF ? (because i know that gps port is readonly). If you can switch on/off, is it possible to be done by MQTT command ?

Thank you.

[Uksa007]

Hi,

• Your code can work on esp01 (considering that need RxTx with jkbms and RxTx with can TJA) ?

No the ESP8266 does not have a built in CAN bus controller, there is no code for an esp8266.
Use an ESP32 they are cheap and more capable.

• Can work without Home Asist ?

Yes

• Does send data on MQTT to NodeRed ?

No, though you could enable MQTT, but have been issues with in the past with the amount of MQTT data that is sent every few seconds, hence Syssi recommends to use the Home assistant API, like I use.

• I see that you have Battery control with charge/discharge switches. Can be switch ON/OFF ? (because i know that gps port is readonly). If you can switch on/off, is it possible to be done by MQTT command ?

It doesn't switch the BMS controls(due to read only gps port), instead it instructs the inverter to enable/disable charging/discharging.
It doesn't support MQTT commands, it is designed to work with HA, you should try HA, as it has better support for a wider range of home automation hardware, than nodered and MQTT alone.