2 BMS CONNECTION PROBLEM
jouking opened this issue · comments
I have been trying for three days to get an esp32 and a wemo d1 connected via UART-TTL to the bms of my second power bank to work but I am not able to, let's see if someone can help me because I am desperate.
I have 2 black jkbms in 2 power banks.
The first one is connected through the rs485 port via UART-TTL to an ESP WT32-ETH01 with the configuration that I indicate below and it works perfectly.
Now in my second power bank I bought another identical WT32-ETH01 and I have connected it the same as the first and I get this error:
[17:29:37][D][text_sensor:064]: 'w32-banco2 Errors': Sending state 'Offline'
[17:29:37][D][sensor:094]: 'w32-banco2 min cell voltage': Sending state nan V with 3 decimals of accuracy
[17:29:37][D][sensor:094]: 'w32-banco2 max cell voltage': Sending state nan V with 3 decimals of accuracy
[17:29:37][D][sensor:094]: 'w32-banco2 min voltage cell': Sending state nan with 0 decimals of accuracy
[17:29:37][D][sensor:094]: 'w32-banco2 max voltage cell': Sending state nan with 0 decimals of accuracy
When I put the WT32-ETH01 from bank 1 in bank 2 it works correctly, but I cannot get the new ESP WT32-ETH01 to work.
I have tried connecting bank 2 with a Wemo D1 in case the new WT32-ETH01 did not work, but it does the same.
What am I doing wrong?
CODE:
substitutions:
name: w32-banco2
esphome:
name: ${name}
friendly_name: w32_banco2
platform: ESP32
board: esp-wrover-kit
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "1u757XEy/uOj/WcvTB7RpaSjGJx+PfiE7Mqspw="
ota:
- platform: esphome
password: "6299d3d3d0ec7414ff477302d"
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_IN
phy_addr: 1
power_pin: GPIO16
# Optional manual IP
manual_ip:
static_ip: 192.168.1.196
gateway: 192.168.1.254
subnet: 255.255.255.0
external_components:
- source: github://syssi/esphome-jk-bms@main
refresh: 0s
uart:
- id: uart_0
baud_rate: 115200
rx_buffer_size: 384
tx_pin: GPIO3
rx_pin: GPIO1
jk_modbus:
- id: modbus0
uart_id: uart_0
# rx_timeout: 50ms
jk_bms:
- id: bms0
jk_modbus_id: modbus0
# update_interval: 5s
sensor:
- platform: jk_bms
jk_bms_id: bms0
min_voltage_cell:
name: "${name} min voltage cell"
max_voltage_cell:
name: "${name} max voltage cell"
min_cell_voltage:
name: "${name} min cell voltage"
max_cell_voltage:
name: "${name} max cell voltage"
delta_cell_voltage:
name: "${name} delta cell voltage"
cell_voltage_1:
name: "${name} cell voltage 1"
cell_voltage_2:
name: "${name} cell voltage 2"
cell_voltage_3:
name: "${name} cell voltage 3"
cell_voltage_4:
name: "${name} cell voltage 4"
cell_voltage_5:
name: "${name} cell voltage 5"
cell_voltage_6:
name: "${name} cell voltage 6"
cell_voltage_7:
name: "${name} cell voltage 7"
cell_voltage_8:
name: "${name} cell voltage 8"
cell_voltage_9:
name: "${name} cell voltage 9"
cell_voltage_10:
name: "${name} cell voltage 10"
cell_voltage_11:
name: "${name} cell voltage 11"
cell_voltage_12:
name: "${name} cell voltage 12"
cell_voltage_13:
name: "${name} cell voltage 13"
cell_voltage_14:
name: "${name} cell voltage 14"
cell_voltage_15:
name: "${name} cell voltage 15"
cell_voltage_16:
name: "${name} cell voltage 16"
cell_voltage_17:
name: "${name} cell voltage 17"
cell_voltage_18:
name: "${name} cell voltage 18"
power_tube_temperature:
name: "${name} Power tube temperature"
temperature_sensor_1:
name: "${name} Temperature sensor 1"
temperature_sensor_2:
name: "${name} Temperature sensor 2"
total_voltage:
name: "${name} Total voltage"
current:
name: "${name} Current"
capacity_remaining:
name: "${name} Capacity remaining"
capacity_remaining_derived:
name: "${name} capacity remaining derived"
temperature_sensors:
name: "${name} Temperature sensors"
charging_cycles:
name: "${name} Charging cycles"
total_charging_cycle_capacity:
name: "${name} Total charging cycle capacity"
battery_strings:
name: "${name} Battery strings"
errors_bitmask:
name: "${name} Errors bitmask"
operation_mode_bitmask:
name: "${name} Operation mode bitmask"
total_voltage_overvoltage_protection:
name: "${name} Total voltage overvoltage protection"
total_voltage_undervoltage_protection:
name: "${name} Total voltage undervoltage protection"
cell_voltage_overvoltage_protection:
name: "${name} Cell voltage overvoltage protection"
cell_voltage_overvoltage_recovery:
name: "${name} Cell voltage overvoltage recovery"
cell_voltage_overvoltage_delay:
name: "${name} Cell voltage overvoltage delay"
cell_voltage_undervoltage_protection:
name: "${name} Cell voltage undervoltage protection"
cell_voltage_undervoltage_recovery:
name: "${name} Cell voltage undervoltage recovery"
cell_voltage_undervoltage_delay:
name: "${name} Cell voltage undervoltage delay"
cell_pressure_difference_protection:
name: "${name} Cell pressure difference protection"
discharging_overcurrent_protection:
name: "${name} Discharging overcurrent protection"
discharging_overcurrent_delay:
name: "${name} Discharging overcurrent delay"
charging_overcurrent_protection:
name: "${name} Charging overcurrent protection"
charging_overcurrent_delay:
name: "${name} Charging overcurrent delay"
balance_starting_voltage:
name: "${name} Balance starting voltage"
balance_opening_pressure_difference:
name: "${name} Balance opening pressure difference"
power_tube_temperature_protection:
name: "${name} Power tube temperature protection"
power_tube_temperature_recovery:
name: "${name} Power tube temperature recovery"
temperature_sensor_temperature_protection:
name: "${name} Temperature sensor temperature protection"
temperature_sensor_temperature_recovery:
name: "${name} Temperature sensor temperature recovery"
temperature_sensor_temperature_difference_protection:
name: "${name} Temperature sensor temperature difference protection"
charging_high_temperature_protection:
name: "${name} Charging high temperature protection"
discharging_high_temperature_protection:
name: "${name} Discharging high temperature protection"
charging_low_temperature_protection:
name: "${name} Charging low temperature protection"
charging_low_temperature_recovery:
name: "${name} Charging low temperature recovery"
discharging_low_temperature_protection:
name: "${name} Discharging low temperature protection"
discharging_low_temperature_recovery:
name: "${name} Discharging low temperature recovery"
current_calibration:
name: "${name} Current calibration"
device_address:
name: "${name} Device address"
sleep_wait_time:
name: "${name} Sleep wait time"
alarm_low_volume:
name: "${name} Alarm low volume"
manufacturing_date:
name: "${name} Manufacturing date"
total_runtime:
name: "${name} Total runtime"
start_current_calibration:
name: "${name} start current calibration"
actual_battery_capacity:
name: "${name} Actual battery capacity"
protocol_version:
name: "${name} Protocol version"
text_sensor:
- platform: jk_bms
errors:
name: "${name} Errors"
operation_mode:
name: "${name} Operation mode"
battery_type:
name: "${name} Battery type"
password:
name: "${name} Password"
device_type:
name: "${name} Device type"
software_version:
name: "${name} Software version"
manufacturer:
name: "${name} Manufacturer"
binary_sensor:
- platform: jk_bms
balancing:
name: "${name} balancing"
balancing_switch:
name: "${name} balancing switch"
charging:
name: "${name} charging"
charging_switch:
name: "${name} charging switch"
discharging:
name: "${name} discharging"
discharging_switch:
name: "${name} discharging switch"
dedicated_charger_switch:
name: "${name} dedicated charger switch"
Please don't use the TXD and RXD pin. The USB-to-TTL chip is attached here and the BMS doesn't like this. Please use any other GPIO instead.
Oh. Is there a USB-to-TTL chip on the WT32-ETH01? Nevertheless. Please try other GPIOs. :-)
Please don't use the TXD and RXD pin. The USB-to-TTL chip is attached here and the BMS doesn't like this. Please use any other GPIO instead.
I tried with GPIO14 and GPIO4 and the problem continues.
Anyway the wt32 of bank 1 works perfectly on the GPIO3 and GPIO1
Are you sure you haven't swapped the RX/TX lines accidentally?
Another idea is to use the ESP-IDF framework just for testing:
esp32:
board: wemos_d1_mini32
framework:
type: esp-idf
Are you sure you haven't swapped the RX/TX lines accidentally?
Another idea is to use the ESP-IDF framework just for testing:
esp32: board: wemos_d1_mini32 framework: type: esp-idf
It doesn't work either. Still giving the same error.
Hallo, i use this Pin´s on my ESP32 for 1xCAN and 2xModbus (1x JK-BMS, 1x Goodwe HV Hybrid Inverter).
You are already using some of these pins, but it might work with the others.
..ESP32 CAN/Serail port pins:
..GPIO pins CAN bus transceiver(TJA1050) is connected to the ESP, note! TX->TX and RX->RX.
can_tx_pin: GPIO23
can_rx_pin: GPIO22
..GPIO pins Modbus JK-BMS RS485(TTL) is connected to the ESP TX->RX and RX->TX.
tx_pin: GPIO17
rx_pin: GPIO16
..GPIO pins Modbus Goodwe RS485(TTL) is connected to the ESP TX->RX and RX->TX.
tx_pin2: GPIO1
rx_pin2: GPIO3
esphome:
name: testbms
friendly_name: testbms
esp32:
board: esp32dev
framework:
type: arduino
logger:
baud_rate: 0
lg Josef
This is starting to work.
First failure, I had the cables connected incorrectly.
Then I had to change the uart port, modbus and bms number to 1.
Now it starts showing data but cuts data from time to time with this error:
[W][uart.arduino_esp32:192]: You're using the same serial port for logging and the UART component. Please disable logging over the serial port by setting logger->baud_rate to 0.
After giving this notice it continues to work correctly, but after a while it gives this other error and cuts off the communication: [W][jk_modbus:091]: CRC check failed! 0x54DA != 0x54EE
Now I have the GPIO1 and GPIO3. In the afternoon I will change the GPIOs for the 4 and 14 in case this solves the problem.
This is log:
[09:15:13][D][text_sensor:064]: 'w32-banco2 Software version': Sending state 'H8.X__S8.20G___'
[09:15:13][D][sensor:094]: 'w32-banco2 Actual battery capacity': Sending state 0.00000 Ah with 0 decimals of accuracy
[09:15:13][D][text_sensor:064]: 'w32-banco2 Manufacturer': Sending state 'BT3072020120000200820001'
[09:15:13][D][sensor:094]: 'w32-banco2 Protocol version': Sending state 1.00000 with 0 decimals of accuracy
[09:15:13][W][component:237]: Component jk_modbus took a long time for an operation (784 ms).
[09:15:13][W][component:238]: Components should block for at most 30 ms.
[09:15:22][W][jk_modbus:091]: CRC check failed! 0x54EA != 0x54EE
[09:15:37][D][text_sensor:064]: 'w32-banco2 Errors': Sending state 'Offline'
[09:15:37][D][sensor:094]: 'w32-banco2 min cell voltage': Sending state nan V with 3 decimals of accuracy
[09:15:37][D][sensor:094]: 'w32-banco2 max cell voltage': Sending state nan V with 3 decimals of accuracy
[09:15:37][D][sensor:094]: 'w32-banco2 min voltage cell': Sending state nan with 0 decimals of accuracy
[09:15:37][D][sensor:094]: 'w32-banco2 max voltage cell': Sending state nan with 0 decimals of accuracy
.
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.
[09:15:38][D][sensor:094]: 'w32-banco2 cell voltage 17': Sending state nan V with 3 decimals of accuracy
[09:15:38][D][sensor:094]: 'w32-banco2 cell voltage 18': Sending state nan V with 3 decimals of accuracy
[09:15:38][W][component:237]: Component jk_bms took a long time for an operation (722 ms).
[09:15:38][W][component:238]: Components should block for at most 30 ms.
[09:16:17][I][jk_bms:071]: Status frame received
[09:16:17][D][sensor:094]: 'w32-banco2 cell voltage 1': Sending state 3.30100 V with 3 decimals of accuracy
[09:16:17][D][sensor:094]: 'w32-banco2 cell voltage 2': Sending state 3.30100 V with 3 decimals of accuracy
[09:16:17][D][sensor:094]: 'w32-banco2 cell voltage 3': Sending state 3.30100 V with 3 decimals of accuracy
If you are using GPIO1/GPIO3 for TX/RX you have to disable the serial logging by setting the baud rate to 0:
logger:
baud_rate: 0
If you are using GPIO1/GPIO3 for TX/RX you have to disable the serial logging by setting the baud rate to
0:logger: baud_rate: 0
ok, that has solved the first warning, but it still gives this error:
[W][jk_modbus:091]: CRC check failed! 0x54CC != 0x54EC
Which framework (Arduino vs. ESP-IDF) do you use at the moment? How often do you see an CRC error?
Which framework (Arduino vs. ESP-IDF) do you use at the moment? How often do you see an CRC error?
if I write
esp32:
board: esp-wrover-kit
framework:
type: esp-idf
gives this error: [W][jk_modbus:063]: Invalid header: 0x38 0x2E
If I put this other:
esp32:
board: esp-wrover-kit
framework:
type: arduino
gives this error: [W][jk_modbus:091]: CRC check failed! 0x54EB != 0x54EC
This is how I have it in the other esp32 of power bank 1 that works perfectly:
esphome:
name: wt32
platform: ESP32
board: esp-wrover-kit
Please don't rush and take your time. Both warnings are about transmission errors. Transmission errors can happen from time to time. This is okay and doesn't harm (if you just miss a frame of data from time to time). If this happens once per second this isn't fine anymore and must be resolved.
How often do you see CRC errors? Please check your wires / you need proper connections / double check GND. Avoid long cables etc.
Please don't rush and take your time. Both warnings are about transmission errors. Transmission errors can happen from time to time. This is okay and doesn't harm (if you just miss a frame of data from time to time). If this happens once per second this isn't fine anymore and must be resolved.
How often do you see CRC errors? Please check your wires / you need proper connections / double check GND. Avoid long cables etc.
Finally it seems to work correctly. I have had to change the GPIOs to 14 and 4 and now there seems to be no cuts.
The configuration with this WT32 ETH1 is this way:
substitutions:
name: w32-banco2
esphome:
name: ${name}
friendly_name: w32_banco2
platform: ESP32
board: esp-wrover-kit
logger:
baud_rate: 0
# Enable Home Assistant API
api:
encryption:
key: "1u757X/nw4cuSjGJx+PfiE7Mqspw="
ota:
- platform: esphome
password: "625dfd314ff4772d"
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_IN
phy_addr: 1
power_pin: GPIO16
# Optional manual IP
manual_ip:
static_ip: 192.168.1.196
gateway: 192.168.1.254
subnet: 255.255.255.0
external_components:
- source: github://syssi/esphome-jk-bms@main
refresh: 0s
uart:
- id: uart_1
baud_rate: 115200
rx_buffer_size: 384
tx_pin: GPIO14
rx_pin: GPIO4
jk_modbus:
- id: modbus1
uart_id: uart_1
rx_timeout: 50ms
jk_bms:
- id: bms1
jk_modbus_id: modbus1
update_interval: 5s
sensor:
- platform: jk_bms
jk_bms_id: bms1
min_voltage_cell:
name: "${name} min voltage cell"
max_voltage_cell:
name: "${name} max voltage cell"
min_cell_voltage:
name: "${name} min cell voltage"
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Thanksss!!!
Gracias!!!!
You are welcome!