esphome-jk-bms
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Published
20 hours ago •
syssi
syssi
JK-B2A20S20P, hw 11.XW, sw 11.284
I'd like to raport that JK-B2A20S20P BMS works fine using JK02_32S, running on an ESP32 C3 board, connected via both BLE and UART.
BMS details: JK-B2A20S20P HW version: V11.XW SW version: V11.284
Regards, martinSezman
hi, can you please post your code? I try to connect to this bms via esp32 wroom ble, via wemos d1 rs485 (original converter from jikong) and everything fails. bms sends data 1x and then communication is lost. well thank you.
My code:
substitutions:
name: "jkbms"
device_description: "Monitor a JK-BMS via BLE/UART"
external_components_source: github://syssi/esphome-jk-bms@main
tx_pin: GPIO21
rx_pin: GPIO20
mac_address: xx:xx:xx:xx:xx:xx
protocol_version: JK02_32S
esphome:
name: ${name}
friendly_name: JKBMS
area: Garaż
comment: ${device_description}
project:
name: "syssi.esphome-jk-bms"
version: 2.0.0
esp32:
board: esp32-c3-devkitm-1
framework:
type: arduino
# Enable logging
logger:
baud_rate: 0
level: DEBUG
logs:
esp32_ble_tracker: INFO
jk_bms_ble: INFO
scheduler: DEBUG
component: DEBUG
sensor: INFO
api.service: INFO
api: INFO
number: INFO
debug:
update_interval: 10s
# Enable Home Assistant API
api:
encryption:
key: "xxxxxxxxxxxxxxxxxxxxxxxxxx"
ota:
password: "xxxxxxxxxxxxxxxxxxxxxxxxxx"
on_begin:
then:
- switch.turn_off: ble_client_switch0
- logger.log: "BLE connection suspended for OTA update"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
output_power: 8.5dB
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Jkbms Fallback Hotspot"
password: "xxxxxxxxxxxxxxxx"
captive_portal:
web_server:
port: 80
status_led:
pin:
number: GPIO7
inverted: yes
external_components:
- source: ${external_components_source}
refresh: 0s
### BLE
esp32_ble_tracker:
on_ble_advertise:
then:
- lambda: |-
if (x.get_name().rfind("JK-", 0) == 0 || x.get_name().rfind("JK_", 0) == 0) {
ESP_LOGI("ble_adv", "New JK-BMS found");
ESP_LOGI("ble_adv", " Name: %s", x.get_name().c_str());
ESP_LOGI("ble_adv", " MAC address: %s", x.address_str().c_str());
ESP_LOGD("ble_adv", " Advertised service UUIDs:");
for (auto uuid : x.get_service_uuids()) {
ESP_LOGD("ble_adv", " - %s", uuid.to_string().c_str());
}
}
ble_client:
- mac_address: ${mac_address}
id: client0
jk_bms_ble:
- ble_client_id: client0
protocol_version: ${protocol_version}
throttle: 5s
id: bmsble0
### UART
uart:
id: uart_0
baud_rate: 115200
rx_buffer_size: 512
tx_pin: ${tx_pin}
rx_pin: ${rx_pin}
debug:
direction: BOTH
jk_modbus:
- id: modbus0
uart_id: uart_0
rx_timeout: 50ms
jk_bms:
- id: bms0
jk_modbus_id: modbus0
update_interval: 5s
################ BINARY sensors ######################
binary_sensor:
- platform: jk_bms_ble
balancing:
name: "${name} balancing"
charging:
name: "${name} charging"
discharging:
name: "${name} discharging"
# heating:
# name: "${name} heating"
online_status:
name: "${name} online status"
################ BUTTONS ###############################
button:
- platform: jk_bms_ble
retrieve_settings:
name: "${name} retrieve settings"
retrieve_device_info:
name: "${name} retrieve device info"
################ NUMBERS ###############################
number:
- platform: jk_bms_ble
jk_bms_ble_id: bmsble0
balance_trigger_voltage:
name: "${name} balance trigger voltage"
cell_count:
name: "${name} cell count"
total_battery_capacity:
name: "${name} total battery capacity"
cell_voltage_overvoltage_protection:
name: "${name} cell voltage overvoltage protection"
cell_voltage_overvoltage_recovery:
name: "${name} cell voltage overvoltage recovery"
cell_voltage_undervoltage_protection:
name: "${name} cell voltage undervoltage protection"
cell_voltage_undervoltage_recovery:
name: "${name} cell voltage undervoltage recovery"
balance_starting_voltage:
name: "${name} balance starting voltage"
voltage_calibration:
name: "${name} voltage calibration"
current_calibration:
name: "${name} current calibration"
power_off_voltage:
name: "${name} power off voltage"
max_balance_current:
name: "${name} max balance current"
max_charge_current:
name: "${name} max charge current"
max_discharge_current:
name: "${name} max discharge current"
################ TEXT sensors #######################
text_sensor:
- platform: debug
device:
name: "Device Info"
reset_reason:
name: "Reset Reason"
- platform: wifi_info
ip_address:
name: ESP IP Address
ssid:
name: ESP Connected SSID
bssid:
name: ESP Connected BSSID
mac_address:
name: ESP Mac Wifi Address
scan_results:
name: ESP Latest Scan Results
dns_address:
name: ESP DNS Address
####################################################
- platform: jk_bms_ble
errors:
name: "${name} errors"
total_runtime_formatted:
name: "${name} total runtime formatted"
- platform: jk_bms
jk_bms_id: bms0
operation_mode:
name: "${name} operation mode"
############### SWITCHES ###########################
switch:
- platform: jk_bms_ble
charging:
name: "${name} charging"
discharging:
name: "${name} discharging"
balancer:
name: "${name} balancer"
- platform: ble_client
ble_client_id: client0
id: ble_client_switch0
name: "${name} enable bluetooth connection"
############### SENSORS ###########################
sensor:
- platform: wifi_signal
name: "${name} WiFi Signal"
update_interval: 60s
- platform: uptime
name: "${name} uptime"
update_interval: 1s
- platform: debug
free:
name: "Heap Free"
############## JK BMS SENSORS ######################
- platform: jk_bms_ble
jk_bms_ble_id: bmsble0
min_cell_voltage:
name: "${name} min cell voltage"
max_cell_voltage:
name: "${name} max cell voltage"
min_voltage_cell:
name: "${name} min voltage cell"
max_voltage_cell:
name: "${name} max voltage cell"
delta_cell_voltage:
name: "${name} delta cell voltage"
average_cell_voltage:
name: "${name} average cell voltage"
cell_voltage_1:
name: "${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: "${name} cell voltage 16"
cell_resistance_1:
name: "${name} cell resistance 1"
cell_resistance_2:
name: "${name} cell resistance 2"
cell_resistance_3:
name: "${name} cell resistance 3"
cell_resistance_4:
name: "${name} cell resistance 4"
cell_resistance_5:
name: "${name} cell resistance 5"
cell_resistance_6:
name: "${name} cell resistance 6"
cell_resistance_7:
name: "${name} cell resistance 7"
cell_resistance_8:
name: "${name} cell resistance 8"
cell_resistance_9:
name: "${name} cell resistance 9"
cell_resistance_10:
name: "${name} cell resistance 10"
cell_resistance_11:
name: "${name} cell resistance 11"
cell_resistance_12:
name: "${name} cell resistance 12"
cell_resistance_13:
name: "${name} cell resistance 13"
cell_resistance_14:
name: "${name} cell resistance 14"
cell_resistance_15:
name: "${name} cell resistance 15"
cell_resistance_16:
name: "${name} cell resistance 16"
total_voltage:
name: "${name} total voltage"
current:
name: "${name} current"
heating_current:
name: "${name} heating current"
power:
name: "${name} power"
charging_power:
name: "${name} charging power"
discharging_power:
name: "${name} discharging power"
temperature_sensor_1:
name: "${name} temperature sensor 1"
temperature_sensor_2:
name: "${name} temperature sensor 2"
power_tube_temperature:
name: "${name} power tube temperature"
state_of_charge:
name: "${name} state of charge"
capacity_remaining:
name: "${name} capacity remaining"
total_battery_capacity_setting:
name: "${name} total battery capacity setting"
charging_cycles:
name: "${name} charging cycles"
total_charging_cycle_capacity:
name: "${name} total charging cycle capacity"
total_runtime:
name: "${name} total runtime"
balancing_current:
name: "${name} balancing current"
errors_bitmask:
name: "${name} errors bitmask"
martin, thank you, it didn't help me, because esp32dev has a lack of memory.
My code:
name: "${name} errors bitmask"
Hello, You are connecting it to UART port of JK (BMS expansion board the two right RJ45 ports, one of them) correct? Is it possible to receive data about Multiple BMS from a single port the same way as JK Windows Software does Using Device adress list?
Here is a sketch of what i am trying to achieve
My code:
name: "${name} errors bitmask"Hello, You are connecting it to UART port of JK (BMS expansion board the two right RJ45 ports, one of them) correct? Is it possible to receive data about Multiple BMS from a single port the same way as JK Windows Software does Using Device adress list?
Here is a sketch of what i am trying to achieve
This topic is for JK-B2A20S20P BMS which is not stackable I suspect.
My code:
name: "${name} errors bitmask"Hello, You are connecting it to UART port of JK (BMS expansion board the two right RJ45 ports, one of them) correct? Is it possible to receive data about Multiple BMS from a single port the same way as JK Windows Software does Using Device adress list? Here is a sketch of what i am trying to achieve
This topic is for JK-B2A20S20P BMS which is not stackable I suspect.
Oh, sorry missed that I have PB2A Sorry