JBD-SP04S020A-L4S-80A-B-U Invalid Header

Question

JBD-SP04S020A-L4S-80A-B-U Invalid Header

kevin-jake opened this issue 2 years ago · 15 comments

Hi I have successfully integrated this on my JBD 4s 80A BMS however I am getting invalid header errors. Any idea how to fix this? Also it seems that the binary sensors (Balancing, Discharging and Charging) is not working?? Please see the sample logs I am having:

[18:07:53][D][jbd_bms:248]: Hardware info:
[18:07:53][D][jbd_bms:249]:   Device model: JBD-SP04S020A-L4S-80A-B-U
[18:07:53][D][sensor:126]: 'jbd-bms-uart total voltage': Sending state 12.86000 V with 2 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart current': Sending state -4.91000 A with 1 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart power': Sending state -63.14260 W with 1 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart charging power': Sending state 0.00000 W with 2 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart discharging power': Sending state 63.14260 W with 2 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart capacity remaining': Sending state 0.00000 Ah with 2 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart nominal capacity': Sending state 5.40000 Ah with 2 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart charging cycles': Sending state 4.00000  with 0 decimals of accuracy
[18:07:53][D][jbd_bms:265]:   Date of manufacture: 2021.12.18
[18:07:53][D][sensor:126]: 'jbd-bms-uart balancer status bitmask': Sending state 0.00000  with 0 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart errors bitmask': Sending state 0.00000  with 0 decimals of accuracy
[18:07:53][D][text_sensor:067]: 'jbd-bms-uart errors': Sending state ''
[18:07:53][D][sensor:126]: 'jbd-bms-uart software version': Sending state 2.00000  with 1 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart state of charge': Sending state 0.00000 % with 0 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart operation status bitmask': Sending state 3.00000  with 0 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart battery strings': Sending state 4.00000  with 0 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart temperature 1': Sending state 28.60000 °C with 1 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart temperature 2': Sending state 27.60000 °C with 1 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart temperature 3': Sending state 27.30000 °C with 1 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart cell voltage 1': Sending state 3.21900 V with 3 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart cell voltage 2': Sending state 3.22100 V with 3 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart cell voltage 3': Sending state 3.20900 V with 3 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart cell voltage 4': Sending state 3.21900 V with 3 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart min cell voltage': Sending state 3.20900 V with 3 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart max cell voltage': Sending state 3.22100 V with 3 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart max voltage cell': Sending state 2.00000  with 0 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart min voltage cell': Sending state 3.00000  with 0 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart delta cell voltage': Sending state 0.01200 V with 4 decimals of accuracy
[18:07:53][D][sensor:126]: 'jbd-bms-uart average cell voltage': Sending state 3.21700 V with 4 decimals of accuracy
[18:07:55][D][jbd_bms:248]: Hardware info:
[18:07:55][D][jbd_bms:249]:   Device model: JBD-SP04S020A-L4S-80A-B-U
[18:07:55][D][sensor:126]: 'jbd-bms-uart total voltage': Sending state 12.86000 V with 2 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart current': Sending state -4.76000 A with 1 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart power': Sending state -61.21360 W with 1 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart charging power': Sending state 0.00000 W with 2 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart discharging power': Sending state 61.21360 W with 2 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart capacity remaining': Sending state 0.00000 Ah with 2 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart nominal capacity': Sending state 5.40000 Ah with 2 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart charging cycles': Sending state 4.00000  with 0 decimals of accuracy
[18:07:55][D][jbd_bms:265]:   Date of manufacture: 2021.12.18
[18:07:55][D][sensor:126]: 'jbd-bms-uart balancer status bitmask': Sending state 0.00000  with 0 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart errors bitmask': Sending state 0.00000  with 0 decimals of accuracy
[18:07:55][D][text_sensor:067]: 'jbd-bms-uart errors': Sending state ''
[18:07:55][D][sensor:126]: 'jbd-bms-uart software version': Sending state 2.00000  with 1 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart state of charge': Sending state 0.00000 % with 0 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart operation status bitmask': Sending state 3.00000  with 0 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart battery strings': Sending state 4.00000  with 0 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart temperature 1': Sending state 28.60000 °C with 1 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart temperature 2': Sending state 27.60000 °C with 1 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart temperature 3': Sending state 27.30000 °C with 1 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart cell voltage 1': Sending state 3.21700 V with 3 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart cell voltage 2': Sending state 3.22100 V with 3 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart cell voltage 3': Sending state 3.20900 V with 3 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart cell voltage 4': Sending state 3.22100 V with 3 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart min cell voltage': Sending state 3.20900 V with 3 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart max cell voltage': Sending state 3.22100 V with 3 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart max voltage cell': Sending state 2.00000  with 0 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart min voltage cell': Sending state 3.00000  with 0 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart delta cell voltage': Sending state 0.01200 V with 4 decimals of accuracy
[18:07:55][D][sensor:126]: 'jbd-bms-uart average cell voltage': Sending state 3.21700 V with 4 decimals of accuracy
[18:07:57][D][jbd_bms:248]: Hardware info:
[18:07:57][D][jbd_bms:249]:   Device model: JBD-SP04S020A-L4S-80A-B-U
[18:07:57][D][sensor:126]: 'jbd-bms-uart total voltage': Sending state 12.86000 V with 2 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart current': Sending state -4.43000 A with 1 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart power': Sending state -56.96980 W with 1 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart charging power': Sending state 0.00000 W with 2 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart discharging power': Sending state 56.96980 W with 2 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart capacity remaining': Sending state 0.00000 Ah with 2 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart nominal capacity': Sending state 5.40000 Ah with 2 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart charging cycles': Sending state 4.00000  with 0 decimals of accuracy
[18:07:57][D][jbd_bms:265]:   Date of manufacture: 2021.12.18
[18:07:57][D][sensor:126]: 'jbd-bms-uart balancer status bitmask': Sending state 0.00000  with 0 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart errors bitmask': Sending state 0.00000  with 0 decimals of accuracy
[18:07:57][D][text_sensor:067]: 'jbd-bms-uart errors': Sending state ''
[18:07:57][D][sensor:126]: 'jbd-bms-uart software version': Sending state 2.00000  with 1 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart state of charge': Sending state 0.00000 % with 0 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart operation status bitmask': Sending state 3.00000  with 0 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart battery strings': Sending state 4.00000  with 0 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart temperature 1': Sending state 28.60000 °C with 1 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart temperature 2': Sending state 27.60000 °C with 1 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart temperature 3': Sending state 27.30000 °C with 1 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart cell voltage 1': Sending state 3.21600 V with 3 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart cell voltage 2': Sending state 3.21800 V with 3 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart cell voltage 3': Sending state 3.20900 V with 3 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart cell voltage 4': Sending state 3.21900 V with 3 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart min cell voltage': Sending state 3.20900 V with 3 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart max cell voltage': Sending state 3.21900 V with 3 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart max voltage cell': Sending state 4.00000  with 0 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart min voltage cell': Sending state 3.00000  with 0 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart delta cell voltage': Sending state 0.01000 V with 4 decimals of accuracy
[18:07:57][D][sensor:126]: 'jbd-bms-uart average cell voltage': Sending state 3.21550 V with 4 decimals of accuracy
[18:07:59][D][jbd_bms:248]: Hardware info:
[18:07:59][D][jbd_bms:249]:   Device model: JBD-SP04S020A-L4S-80A-B-U
[18:07:59][D][sensor:126]: 'jbd-bms-uart total voltage': Sending state 12.87000 V with 2 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart current': Sending state -4.43000 A with 1 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart power': Sending state -57.01410 W with 1 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart charging power': Sending state 0.00000 W with 2 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart discharging power': Sending state 57.01410 W with 2 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart capacity remaining': Sending state 0.00000 Ah with 2 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart nominal capacity': Sending state 5.40000 Ah with 2 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart charging cycles': Sending state 4.00000  with 0 decimals of accuracy
[18:07:59][D][jbd_bms:265]:   Date of manufacture: 2021.12.18
[18:07:59][D][sensor:126]: 'jbd-bms-uart balancer status bitmask': Sending state 0.00000  with 0 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart errors bitmask': Sending state 0.00000  with 0 decimals of accuracy
[18:07:59][D][text_sensor:067]: 'jbd-bms-uart errors': Sending state ''
[18:07:59][D][sensor:126]: 'jbd-bms-uart software version': Sending state 2.00000  with 1 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart state of charge': Sending state 0.00000 % with 0 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart operation status bitmask': Sending state 3.00000  with 0 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart battery strings': Sending state 4.00000  with 0 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart temperature 1': Sending state 28.60000 °C with 1 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart temperature 2': Sending state 27.60000 °C with 1 decimals of accuracy
[18:07:59][D][sensor:126]: 'jbd-bms-uart temperature 3': Sending state 27.30000 °C with 1 decimals of accuracy
[18:07:59][W][jbd_bms:124]: Invalid header```

Answer 1 · 2022-10-26T12:33:13.000Z

Could you enable the debug output of the uart component:

logger:
  level: DEBUG

uart:
  id: uart0
  baud_rate: 9600
  tx_pin: GPIO4
  rx_pin: GPIO5
  debug:
    direction: BOTH

and provide a log including multiple "Invalid header" warnings?

Answer 2 · 2022-10-26T13:05:27.000Z

Could you enable the debug output of the uart component:
logger:
  level: DEBUG

uart:
  id: uart0
  baud_rate: 9600
  tx_pin: GPIO4
  rx_pin: GPIO5
  debug:
    direction: BOTH
and provide a log including multiple "Invalid header" warnings?

Got this on the logs ( I cleaned up logs that might not be useful):

[21:03:16][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][W][jbd_bms:124]: Invalid header
[21:03:16][D][uart_debug:114]: <<< DD:03:00:1D:04:FC:FF:34:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BF:FA:3B:77
[21:03:16][D][uart_debug:114]: <<< FF
[21:03:18][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
[21:03:18][D][jbd_bms:248]: Hardware info:
[21:03:18][D][jbd_bms:249]:   Device model: JBD-SP04S020A-L4S-80A-B-U
...
...
[21:03:18][D][uart_debug:114]: <<< DD:03:00:1D:04:FB:FE:88:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BF:F9:E9:77
[21:03:18][D][uart_debug:114]: >>> DD:A5:04:00:FF:FC:77
...
[21:03:18][D][uart_debug:114]: <<< DD:04:00:08:0C:77:0C:79:0C:72:0C:79:FD:ED:77
[21:03:20][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
...
...
[21:03:20][D][uart_debug:114]: <<< DD:03:00:1D:04:FD:FF:34:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BF:FA:3A:77
[21:03:20][D][uart_debug:114]: >>> DD:A5:04:00:FF:FC:77
...
[21:03:20][D][uart_debug:114]: <<< DD:04:00:08:0C:79:0C:79:0C:73:0C:7A:FD:E9:77
[21:03:22][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
[21:03:22][W][jbd_bms:147]: JbdBms CRC Check failed! FA48 != FA44
[21:03:22][D][uart_debug:114]: <<< DD:03:00:1D:04:FC:FF:2B:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BB:FA:44:77
[21:03:22][D][uart_debug:114]: <<< FF
[21:03:24][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
...
[21:03:24][D][uart_debug:114]: <<< DD:03:00:1D:04:FC:FF:34:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BF:FA:3B:77
[21:03:24][D][api:102]: Accepted 10.150.6.250
[21:03:24][D][api.connection:917]: Home Assistant 2022.10.5 (10.150.6.250): Connected successfully
[21:03:24][D][uart_debug:114]: >>> DD:A5:04:00:FF:FC:77
[21:03:24][W][jbd_bms:124]: Invalid header
[21:03:24][W][jbd_bms:124]: Invalid header
[21:03:24][W][jbd_bms:124]: Invalid header
[21:03:24][W][jbd_bms:124]: Invalid header
[21:03:24][W][jbd_bms:124]: Invalid header
[21:03:24][W][jbd_bms:124]: Invalid header
[21:03:24][W][jbd_bms:124]: Invalid header
[21:03:24][D][uart_debug:114]: <<< 7F:77:10:20:21:C8:31:F2:0C:70:0C:77:FD:F2:77
[21:03:26][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
[21:03:26][D][jbd_bms:248]: Hardware info:
[21:03:26][D][jbd_bms:249]:   Device model: JBD-SP04S020A-L4S-80A-B-U
..
[21:03:26][D][jbd_bms:265]:   Date of manufacture: 2021.12.18
...
[21:03:26][D][text_sensor:067]: 'jbd-bms-uart errors': Sending state ''
...
[21:03:26][D][uart_debug:114]: <<< DD:03:00:1D:04:FC:FF:2B:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BF:FA:44:77
[21:03:26][D][uart_debug:114]: >>> DD:A5:04:00:FF:FC:77
..
[21:03:26][D][uart_debug:114]: <<< DD:04:00:08:0C:76:0C:76:0C:6D:0C:78:FD:F7:77
[21:03:28][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
[21:03:28][D][jbd_bms:248]: Hardware info:
[21:03:28][D][jbd_bms:249]:   Device model: JBD-SP04S020A-L4S-80A-B-U
...
[21:03:28][D][jbd_bms:265]:   Date of manufacture: 2021.12.18
...
[21:03:28][D][uart_debug:114]: <<< DD:03:00:1D:04:FC:FF:13:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BF:FA:5C:77
[21:03:28][D][uart_debug:114]: >>> DD:A5:04:00:FF:FC:77
...
[21:03:28][D][uart_debug:114]: <<< DD:04:00:08:0C:79:0C:79:0C:74:0C:7A:FD:E8:77
[21:03:30][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
....
[21:03:30][D][uart_debug:114]: <<< DD:03:00:1D:04:FD:FF:34:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BF:FA:3A:77
[21:03:30][D][uart_debug:114]: >>> DD:A5:04:00:FF:FC:77
...
[21:03:30][D][uart_debug:114]: <<< DD:04:00:08:0C:77:0C:7A:0C:74:0C:7B:FD:E8:77:FF
[21:03:32][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
...
[21:03:32][D][uart_debug:114]: <<< DD:03:00:1D:04:FC:FF:1C:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BF:FA:53:77
[21:03:32][D][uart_debug:114]: >>> DD:A5:04:00:FF:FC:77
...
[21:03:32][D][uart_debug:114]: <<< DD:04:00:08:0C:78:0C:79:0C:74:0C:7B:FD:E8:77
[21:03:34][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
...
[21:03:34][D][uart_debug:114]: <<< DD:03:00:1D:04:FD:FF:34:00:00:02:1C:00:05:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:CA:0B:C1:0B:BF:FA:3A:77
[21:03:34][D][uart_debug:114]: >>> DD:A5:04:00:FF:FC:77
[21:03:34][W][jbd_bms:147]: JbdBms CRC Check failed! FDF0 != F5F0

Answer 3 · 2022-10-26T13:21:06.000Z

Could you try to increase the rx_timeout from 150ms to 200ms and try again?

Answer 4 · 2022-10-26T14:01:43.000Z

Invalid Headers occur less but still the Balancing, Charging and Discharging switches are still not working. Not sure if this is because of the password is it applicable for BMS that has this Date of manufacture: 2021.12.18 ?

Answer 5 · 2022-10-26T14:41:24.000Z

Are we talking about the binary sensors or switches?

Answer 6 · 2022-10-26T14:46:40.000Z

switches

I increased timeout to 500ms. Looks fine now for the invalid header issue. Thanks for the tip man!

its the switches. I can see the commands being sent on the logs but its not taking effect. Also is it possible to change other settings for the BMS in home assistant?

Answer 7 · 2022-10-26T14:48:38.000Z

Switches aren't supported yet / they are untested: https://github.com/syssi/esphome-jbd-bms/blob/main/components/jbd_bms/switch/jbd_switch.cpp#L12

Answer 8 · 2022-10-26T14:50:23.000Z

No other controls are implemented yet.

Answer 9 · 2022-10-26T14:52:01.000Z

Ok thanks for this if I got a chance to explore this maybe I'll just raise a PR but still need to learn the registers and how it communicates to the BMS.

Thank you for the great work!

Answer 10 · 2022-10-26T14:55:19.000Z

You could use this implementation / skeleton for some guidance to implement additional entities (number, button, etc.): https://github.com/syssi/esphome-jk-bms/tree/main/components/jk_bms_ble

I recommend to extract the commands/registers from a btsnoop capture to be sure to not pass garbage to the BMS.

Answer 11 · 2022-10-27T11:30:25.000Z

Hi Invalid Headers occured again today and became more frequent, is there something i should do like resetting the bms or something?

[19:28:34][W][jbd_bms:124]: Invalid header
[19:28:34][W][jbd_bms:124]: Invalid header
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][D][uart_debug:114]: <<< FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:DD:03:00:1D:05:15:FC:92:00:00:02:1C:00:0B:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:DB:0B:CD:0B:CB:FA:97:77:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][D][uart_debug:114]: <<< FF:FF:FF:FF:FF:FF:FF
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][W][jbd_bms:124]: Invalid header
[19:28:35][D][uart_debug:114]: <<< FF:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][D][uart_debug:114]: <<< FF
[19:28:36][D][uart_debug:114]: >>> DD:A5:03:00:FF:FD:77
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][D][uart_debug:114]: <<< FF:DD:03:00:1D:05:16:FD:15:00:00:02:1C:00:0B:2B:92:00:00:00:00:00:00:20:00:03:04:03:0B:DB:0B:CD:0B:CB:FB:12:77:FF:FF:FF:FF:FF:FF:FF:FF:FF:FF
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][D][uart_debug:114]: <<< FF:FF
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header
[19:28:36][W][jbd_bms:124]: Invalid header

Answer 12 · 2022-10-27T11:32:42.000Z

Another user did report in the past the serial interface of the BMS is unstable in case of charging the battery.

Answer 13 · 2022-10-27T11:34:56.000Z

oh ok so this is a known issue. Perhaps in the BMS itself?

Answer 14 · 2022-10-27T12:57:21.000Z

Yes. If you have a logic analyzer you could try to record the traffic while charging & discharging. I assume you will see gaps/some silence between the bytes of a frame depending on the "load".

Answer 15 · 2022-12-18T12:59:26.000Z

Let's close this issue because its a hardware issue probably and cannot be solved here.