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ESP32_Li-ion_BLE_jk-bms-can.yaml
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ESP32_Li-ion_BLE_jk-bms-can.yaml
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# JK-BMS-CAN ( PYLON, Seplos, GoodWe, SMA and Victron CAN bus protocol )
# esp32_ble_jk-bms-can.yaml is free software: you can redistribute it
# and/or modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 3
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/gpl.html>.
# v1.17.5 MrPablo : "Auto Charge Voltage Control" function rewritten, EOC cycle threshold added to reduce premature triggering of float phase
# V1.17.4 MrPablo : Added "SMA" to CAN BMS names, added function "Auto Charge Voltage Control" to avoid OVP alarms and improve balancing, categorised sensors, set time source to SNTP, min battery voltage based on BMS value, added "Last Complete Charge" timestamp, renamed daily energy sensors and added input number display option
# V1.17.3 Sleeper85 : Renumbering cells, Added “JK-BMS ESP32 Restart” switch, adding Total Daily Energy sensors, set jk_bms update interval to 3s, set default log level to INFO, improvement of comments
# V1.17.2 MrPablo : Added function "Auto Charge/Discharge Current Control" to avoid OVP/UVP alarms
# V1.17.1 Sleeper85 : New Cut-Off Current/Voltage Charging Logic for LFP with the participation of @shvmm
# V1.16.6 Sleeper85 : Selectable CAN settings + Adding inverter_offset_v + Improved CAN ID 0x355, sending 100% only at the end of the absorption phase, adding bytes [04:05] and [06:07] + Automatic calculation of the number of battery modules + Save and Restore slider values
# V1.16.5 Sleeper85 : Add Preventive Alarms Logic, CAN ID 0x356: send average temperature of T1/T2, new "Discharging current max" slider
# V1.16.4 Sleeper85 : Improved Charging Logic for ESP32 startup/reboot and Float charge, Add CAN ID 0x356 bytes [06:07] cycles for Sofar, Change switch name
# V1.16.3 Sleeper85 : ID 0x379 will be sent when choosing protocol 2 or 4 (Battery Capacity for Victron, Sol-Ark and Luxpower)
# V1.16.2 Sleeper85 : Split the "Charge/Discharge values" section and added instructions for "Stop Discharging" + Set "esp-idf" framework by default
# V1.16.1 Sleeper85 : Slider charging_current max value = ${charge_a}, Improved Alarm/Charging/Discharging Logic, Improved CAN protocol and Victron support
# V1.15.5 Sleeper85 : Improved code and set api "reboot_timout" to "0s" by default (no reboot without HA)
# V1.15.4 Sleeper85 : Improved documentation for API, Web Server and WiFi settings
# V1.15.3 Sleeper85 : Add 'CAN Protocol Settings' and new CAN ID based on the SMA and Victron protocol (alpha)
# V1.15.2 Sleeper85 : Improved Alarm handling, all alarms will set charge/discharge current to 0A and set 'Charging Status' to Alarm
# V1.15.1 Sleeper85 : New CANBUS script with CANBUS Status in HA, stop sending CAN messages if the inverter is not responding (fix WDT reboot issues)
# V1.14.3 Sleeper85 : Improved documentation + Charging Voltage tips for Deye
# V1.14.2 Sleeper85 : Improve 'Charging Voltage' behavior
# V1.14.1 Sleeper85 : Add 'Float charge function'
# V1.13.6 Sleeper85 : Add 'Absorption time' and 'Absorption Offset V.' slider
# V1.13.5 Sleeper85 : Set CAN manufacter to "PYLON" for improve compatibility with Deye and other inverters
# V1.13.4 Sleeper85 : Improve 'Charge Status' behavior + add 'Rebulk Offset V.' slider
# V1.13.3 uksa007 : Improve compatibility with Deye and other inverters
# V1.13.2 uksa007 : Send Max Temperature of T1, T2 to inverter
# V1.13.1 uksa007 : Fix compile issues with new version of ESPhome 2023.4.0, set rebulk offset to 2.5
substitutions:
# +--------------------------------------+
# name that will appear in esphome and homeassistant.
name: jk-bms-ble-can
# +--------------------------------------+
# | Bluetooth Settings |
# +--------------------------------------+
# Please use "JK02_24S" if you own a old JK-BMS < hardware version 11.0 (hardware version >= 6.0 and < 11.0)
# Please use "JK02_32S" if you own a new JK-BMS >= hardware version 11.0 (f.e. JK-B2A8S20P hw 11.XW, sw 11.26)
# Please use "JK04" if you have some old JK-BMS <= hardware version 3.0 (f.e. JK-B2A16S hw 3.0, sw. 3.3.0)
protocol_version: JK02_32S
mac_address: C8:47:8C:10:7E:AB
# +--------------------------------------+
# | Battery Charge Settings |
# +--------------------------------------+
# This is max charging amps eg 100A, for Bulk - Constant Current charging(CC), should be at least 10A less than BMS change current protection, 0.5C max
# 100A * 50V = 5000W
charge_a: "100"
# Float Voltage : corresponds to the voltage at which the battery would be maintained at the end of the absorption phase. (54.6V = 3.39V/Cell for 14S battery)
float_v: "54.6"
# Bulk / Absorption Voltage : corresponds to the Bulk voltage that will be used to charge the battery. (57.4V = 4.10V/Cell for 14S battery)
bulk_v: "57.4"
# Rebulk voltage, voltage less than FLOAT at which BMS requests rebulk. (53.2V = 3.8V/Cell for 14S battery)
rebulk_v: "53.2"
# +--------------------------------------+
# | Use the settings below with caution |
# +--------------------------------------+
# Inverter offset, allows you to correct the inverter charging voltage
# For example, with my Deye, if the requested charging voltage is 55.2v the Deye effective charging voltage will be 55.1v
# An offset of 0.1 provides an effective charging voltage of 55.2v
inverter_offset_v: "0.0"
# Auto charge current control will automatically reduce the charging current as a cell reaches the BMS "cell_voltage_overvoltage_recovery".
# If unsure, leave the below settings as default, this will ensure charge current will taper correctly.
# Factor to control the end of the charge current curve. A setting below 2 will extend the curve, above 2 will shorten the curve.
charge_a_factor_curve_end: "2.0"
# Factor to adjust the shape of the charge current curve.
# A setting below 1 will reduce current at a slow rate after the float voltage is reached, then increase as a cell reaches the BMS "cell_voltage_overvoltage_recovery".
# A factor above 1 will reduce current at a fast rate after the float voltage is reached, then slow as a cell reaches the BMS "cell_voltage_overvoltage_recovery".
charge_a_factor_curve_shape: "1.8"
# Factor to adjust the aggression of the auto voltage control logic.
# The higher the setting, the more that requested charge voltage will reduce as cells exceed the target voltage (bulk voltage).
charge_v_factor: "2.0"
# End of charge (EOC) will be triggered if current and max cell voltage meet cut-off thresholds, plus the cycle count exceeds the below threshold.
# As default, this cycle count is set to 60 which is approximately 60 seconds. This will reduce the liklihood of premature EOC.
eoc_cycle_threshold: "60"
# +--------------------------------------+
# | Battery Discharge Settings |
# +--------------------------------------+
# Max discharge amps eg 120, should be at least 10A less than BMS over discharge current protection, 0.5C max
# 120A * 50V = 6000W
discharge_a: "120"
# +--------------------------------------+
# | Use the settings below with caution |
# +--------------------------------------+
# Auto discharge current control will automatically reduce the charging current as a cell reaches the BMS "cell_voltage_undervoltage_recovery".
# If unsure, leave the below settings as default, this will ensure discharge current will taper correctly.
# Factor to control the end of the discharge current curve. A setting below 2 will extend the curve, above 2 will shorten the curve.
discharge_a_factor_curve_end: "2.0"
# Factor to adjust the shape of the charge current curve.
# A setting below 1 will reduce current at a slow rate after the float voltage is reached, then increase as a cell reaches the BMS "cell_voltage_undervoltage_recovery".
# A factor above 1 will reduce current at a fast rate after the float voltage is reached, then slow as a cell reaches the BMS "cell_voltage_undervoltage_recovery".
discharge_a_factor_curve_shape: "1.8"
# Discharge knee voltage, the point at which a cell will reduce in voltage more rapidly. For LiFePO4 cells, this is generally considered to be 3.1v.
discharge_knee_v: "3.5"
# +--------------------------------------+
# | Battery State of Health (SOH) |
# +--------------------------------------+
# Maximum charging cycles is used to calculate the battey SOH, LF280K v3 =8000.0, LF280K v2 =6000.0, LF280=3000.0 (decimal is required)
max_cycles: "6000.0"
# +--------------------------------------+
# | Preventive Alarms Logic |
# +--------------------------------------+
# Information from the EVE LF280K v2 cell datasheet
# LFP Recommended Operating Temperature Range : 10~45°C
# Number of cycles at 25°C : 6000
# Number of cycles at 45°C : 2500
# 60°C : Never charging or discharging
# 0°C : Never charging
# -30°C : Never discharging
# +--------------------------------------+
# High Temp Protection - Temp > OTP : Stop Charging and Discharging
otp: "45.0"
# Low Temp Protection - Temp < UTP : Stop Charging
utp: "1.0"
# +--------------------------------------+
# | Home Assistant Display Settings |
# +--------------------------------------+
# Input numbers can be displayed as a slider or an input box - options are 'slider' or 'box'
input_number_mode: 'slider'
# +--------------------------------------+
# | ESP32 CAN port pins |
# +--------------------------------------+
# GPIO pins your CAN bus transceiver (TJA1050, TJA1051T or SN65HVD230) is connected to the ESP, note! TX->TX and RX->RX.
can_tx_pin: GPIO23
can_rx_pin: GPIO22
# +------------------------------------------------------------------+
# | ** The settings below can be modified according to your needs ** |
# +------------------------------------------------------------------+
external_components_source: github://syssi/esphome-jk-bms@main
# components
# github://syssi/esphome-jk-bms@main
esphome:
name: ${name}
on_boot:
then:
- switch.turn_on: can_switch_charging
- switch.turn_on: can_switch_discharging
- switch.turn_on: can_switch_float
- switch.turn_on: can_switch_auto_charge_current
- switch.turn_on: can_switch_auto_discharge_current
- switch.turn_on: can_switch_auto_charge_voltage
# +--------------------------------------+
# | ESP32 settings |
# +--------------------------------------+
# For a stable Bluetooth connection keep the "esp-idf" framework
esp32:
board: esp32doit-devkit-v1
framework:
type: esp-idf
external_components:
- source: ${external_components_source}
refresh: 0s
logger:
level: INFO
ota:
on_begin:
then:
- lambda: id(enable_bluetooth_connection).turn_off();
- logger.log: "BLE shutdown for flashing"
# Please use the native `api` component instead of the `mqtt` section.
# If you use Home Assistant, the native API is more lightweight.
# If there is no HA server connected to this API, the ESP32 reboots every 15 minutes to try to resolve the problem.
# If you don't use Home Assistant please uncomment the "reboot_timeout: 0s" option.
api:
reboot_timeout: 0s
# If you don't want to use ESPHome's native API you can use MQTT instead.
# In this case don't forget to remove the 'api:' section.
# mqtt:
# broker: !secret mqtt_host
# username: !secret mqtt_username
# password: !secret mqtt_password
# id: mqtt_client
# In the event of problems with the WiFi network, the ESP32 will reboot every 15 minutes to try to resolve the problem.
# If we don't want to connect the ESP32 to the WiFi network please remove the 4 lines below.
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
domain: !secret domain
captive_portal:
#web_server:
# port: 80
# log: false
# ota: false
# +--------------------------------------+
# | ** Don't make changes below this ** |
# +--------------------------------------+
globals:
- id: can_ack_counter
type: int
restore_value: no
initial_value: '0'
- id: charge_status
type: std::string
restore_value: no
initial_value: '"Wait"'
- id: alarm_status
type: std::string
restore_value: no
initial_value: '"NoAlarm"'
- id: can_msg_counter
type: int
restore_value: no
initial_value: '0'
- id: eoc
type: bool
restore_value: no
initial_value: "false"
- id: eoc_timestamp
type: time_t
restore_value: true
initial_value: ''
output:
- platform: gpio
pin: 2
id: led
inverted: true
light:
- platform: binary
output: led
id: blue_led
name: "Blue LED"
internal: true
# +--------------------------------------+
# | JK-BMS BLE connection |
# +--------------------------------------+
esp32_ble_tracker:
on_ble_advertise:
then:
- lambda: |-
if (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: ${protocol_version}
throttle: 3s
id: bms0
# enable_fake_traffic: true
# +--------------------------------------+
time: # Enable time component to reset energy at midnight
- platform: sntp
id: sntp_time
select:
- platform: template
name: CAN BMS Name
id: can_bms_name
options:
- "GENERAL"
- "PYLON"
- "GOODWE"
- "SEPLOS"
- "SMA"
restore_value: true
initial_option: "PYLON"
optimistic: true
entity_category: config
set_action:
- logger.log:
format: "Chosen option: %s"
args: ["x.c_str()"]
- platform: template
name: CAN Protocol
id: can_protocol
options:
- "GENERAL"
- "PYLON 1.2"
- "PYLON +"
- "SMA"
- "VICTRON"
restore_value: true
initial_option: "PYLON +"
optimistic: true
entity_category: config
set_action:
- logger.log:
format: "Chosen option: %s"
args: ["x.c_str()"]
binary_sensor:
- platform: jk_bms_ble
balancing:
id: equalizing
name: "${name} balancing"
charging:
name: "${name} charging"
discharging:
name: "${name} discharging"
online_status:
name: "${name} Online Status"
# +--------------------------------------+
- platform: template
name: "${name} CANBUS Status"
id: can_bus_status
switch:
- platform: jk_bms_ble
charging:
id: bms_switch_charging
name: "${name} BMS Charge switch"
discharging:
id: bms_switch_discharging
name: "${name} BMS Discharge switch"
balancer:
id: bms_switch_balancing
name: "${name} BMS Balance switch"
# +--------------------------------------+
- platform: ble_client
ble_client_id: client0
id: enable_bluetooth_connection
name: "${name} Enable Bluetooth connection"
# +--------------------------------------+
- platform: template
name: "${name} CAN Charge enabled"
id: can_switch_charging
optimistic: true
- platform: template
name: "${name} CAN Discharge enabled"
id: can_switch_discharging
optimistic: true
- platform: template
name: "${name} CAN Force Bulk (top bal)"
id: can_switch_force_bulk
optimistic: true
- platform: template
name: "${name} CAN Float charge enabled"
id: can_switch_float
optimistic: true
- platform: template
name: ${name} CAN Automatic Charge Current
id: can_switch_auto_charge_current
optimistic: true
entity_category: config
- platform: template
name: ${name} CAN Automatic Discharge Current
id: can_switch_auto_discharge_current
optimistic: true
entity_category: config
- platform: template
name: ${name} CAN Automatic Charge Voltage
id: can_switch_auto_charge_voltage
optimistic: true
entity_category: config
sensor:
- platform: jk_bms_ble
jk_bms_ble_id: bms0
min_cell_voltage:
id: min_cell_voltage
name: "${name} min cell voltage"
max_cell_voltage:
id: max_cell_voltage
name: "${name} max cell voltage"
min_voltage_cell:
id: min_voltage_cell
name: "${name} min voltage cell"
max_voltage_cell:
id: max_voltage_cell
name: "${name} max voltage cell"
delta_cell_voltage:
id: delta_cell_voltage
name: "${name} delta cell voltage"
average_cell_voltage:
name: "${name} average cell voltage"
cell_voltage_1:
id: cell_v_01
name: "${name} cell voltage 01"
cell_voltage_2:
id: cell_v_02
name: "${name} cell voltage 02"
cell_voltage_3:
id: cell_v_03
name: "${name} cell voltage 03"
cell_voltage_4:
id: cell_v_04
name: "${name} cell voltage 04"
cell_voltage_5:
id: cell_v_05
name: "${name} cell voltage 05"
cell_voltage_6:
id: cell_v_06
name: "${name} cell voltage 06"
cell_voltage_7:
id: cell_v_07
name: "${name} cell voltage 07"
cell_voltage_8:
id: cell_v_08
name: "${name} cell voltage 08"
cell_voltage_9:
id: cell_v_09
name: "${name} cell voltage 09"
cell_voltage_10:
id: cell_v_10
name: "${name} cell voltage 10"
cell_voltage_11:
id: cell_v_11
name: "${name} cell voltage 11"
cell_voltage_12:
id: cell_v_12
name: "${name} cell voltage 12"
cell_voltage_13:
id: cell_v_13
name: "${name} cell voltage 13"
cell_voltage_14:
id: cell_v_14
name: "${name} cell voltage 14"
cell_voltage_15:
id: cell_v_15
name: "${name} cell voltage 15"
cell_voltage_16:
id: cell_v_16
name: "${name} cell voltage 16"
cell_voltage_17:
id: cell_v_17
name: "${name} cell voltage 17"
disabled_by_default: true
cell_voltage_18:
id: cell_v_18
name: "${name} cell voltage 18"
disabled_by_default: true
cell_voltage_19:
id: cell_v_19
name: "${name} cell voltage 19"
disabled_by_default: true
cell_voltage_20:
id: cell_v_20
name: "${name} cell voltage 20"
disabled_by_default: true
cell_voltage_21:
id: cell_v_21
name: "${name} cell voltage 21"
disabled_by_default: true
cell_voltage_22:
id: cell_v_22
name: "${name} cell voltage 22"
disabled_by_default: true
cell_voltage_23:
id: cell_v_23
name: "${name} cell voltage 23"
disabled_by_default: true
cell_voltage_24:
id: cell_v_24
name: "${name} cell voltage 24"
disabled_by_default: true
cell_resistance_1:
name: "${name} cell resistance 01"
cell_resistance_2:
name: "${name} cell resistance 02"
cell_resistance_3:
name: "${name} cell resistance 03"
cell_resistance_4:
name: "${name} cell resistance 04"
cell_resistance_5:
name: "${name} cell resistance 05"
cell_resistance_6:
name: "${name} cell resistance 06"
cell_resistance_7:
name: "${name} cell resistance 07"
cell_resistance_8:
name: "${name} cell resistance 08"
cell_resistance_9:
name: "${name} cell resistance 09"
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: "${name} cell resistance 16"
#cell_resistance_17:
# name: "${name} cell resistance 17"
#cell_resistance_18:
# name: "${name} cell resistance 18"
#cell_resistance_19:
# name: "${name} cell resistance 19"
#cell_resistance_20:
# name: "${name} cell resistance 20"
#cell_resistance_21:
# name: "${name} cell resistance 21"
#cell_resistance_22:
# name: "${name} cell resistance 22"
#cell_resistance_23:
# name: "${name} cell resistance 23"
#cell_resistance_24:
# name: "${name} cell resistance 24"
total_voltage:
id: total_voltage
name: "${name} total voltage"
current:
id: current
name: "${name} current"
power:
id: power
name: "${name} power"
charging_power:
id: charging_power
name: "${name} charging power"
discharging_power:
id: discharging_power
name: "${name} discharging power"
power_tube_temperature:
id: power_tube_temperature
name: "${name} power tube temperature"
temperature_sensor_1:
id: temperature_sensor_1
name: "${name} temperature sensor 1"
temperature_sensor_2:
id: temperature_sensor_2
name: "${name} temperature sensor 2"
state_of_charge:
id: state_of_charge
name: "${name} state of charge"
capacity_remaining:
id: capacity_remaining_ah
name: "${name} capacity remaining"
total_battery_capacity_setting:
id: battery_capacity
name: "${name} total battery capacity setting"
charging_cycles:
id: 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:
id: errors_bitmask
name: "${name} errors bitmask"
# +--------------------------------------+
# | Total Daily Energy |
# +--------------------------------------+
- platform: total_daily_energy
name: "${name} BMS Daily Charging Energy"
power_id: charging_power
unit_of_measurement: 'kWh'
state_class: total_increasing
device_class: energy
accuracy_decimals: 3
filters:
# Multiplication factor from W to kW is 0.001
- multiply: 0.001
- platform: total_daily_energy
name: "${name} BMS Daily Discharging Energy"
power_id: discharging_power
unit_of_measurement: 'kWh'
state_class: total_increasing
device_class: energy
accuracy_decimals: 3
filters:
# Multiplication factor from W to kW is 0.001
- multiply: 0.001
# +--------------------------------------+
# | Uptime sensor |
# +--------------------------------------+
- platform: uptime
name: ${name} Uptime Sensor
id: uptime_sensor
update_interval: 60s
entity_category: diagnostic
on_raw_value:
then:
- text_sensor.template.publish:
id: uptime_human
state: !lambda |-
int seconds = round(id(uptime_sensor).raw_state);
int days = seconds / (24 * 3600);
seconds = seconds % (24 * 3600);
int hours = seconds / 3600;
seconds = seconds % 3600;
int minutes = seconds / 60;
seconds = seconds % 60;
return (
(days ? to_string(days) + "d " : "") +
(hours ? to_string(hours) + "h " : "") +
(minutes ? to_string(minutes) + "m " : "") +
(to_string(seconds) + "s")
).c_str();
# +--------------------------------------+
# | Template sensor |
# +--------------------------------------+
- platform: template
name: ${name} Requested Charge Voltage
id: requested_charge_voltage
unit_of_measurement: V
device_class: voltage
- platform: template
name: "${name} Last Complete Charge"
device_class: timestamp
id: eoc_timestamp_template
lambda: return id(eoc_timestamp);
on_value:
then:
- text_sensor.template.publish:
id: eoc_timestamp_human
state: !lambda |-
char str[19];
strftime(str, sizeof(str), " %H:%M %d %b %Y", localtime(&id(eoc_timestamp)));
return {str};
entity_category: diagnostic
# +--------------------------------------+
# | Auto Charge Current Control |
# +--------------------------------------+
# First, an initial charge current is calculated based upon the maximum cell voltage but only if the Auto Charge Current switch is enabled.
- platform: copy
source_id: max_cell_voltage
name: ${name} Initial Charge Current
id: auto_ccl_initial
unit_of_measurement: A
device_class: current
internal: true
filters:
- lambda: !lambda |-
// Variables
double cell_float_v = (id(float_voltage).state / id(cell_count).state);
// Auto Charge Current function
if (id(can_switch_auto_charge_current).state) {
if (id(max_cell_voltage).state > id(cell_ovpr).state) return 0.0;
else return max(0.0,(- pow(${charge_a_factor_curve_end}, pow( max(0.0, ((x - cell_float_v) / (id(cell_ovpr).state - cell_float_v))),${charge_a_factor_curve_shape}))+2) * id(charging_current).state);
}
else return id(charging_current).state;
# Second, an exponential moving average is calculated. This will be used to smooth the transition between different initial charge current values.
- platform: copy
source_id: auto_ccl_initial
name: ${name} Moving Average Charge Current
id: auto_ccl_moving_average
unit_of_measurement: A
device_class: current
internal: true
filters:
- exponential_moving_average:
alpha: 0.15
send_every: 1
send_first_at: 1
# Third, if the instantaneous initial charge current value is lower than the moving average, use that, otherwise use the moving average.
# This means that cell voltage spikes will be reacted to quickly, but reduced cell voltages will not, preventing oscillation of requested current.
- platform: copy
source_id: auto_ccl_initial
name: ${name} Requested Charge Current
id: auto_ccl
unit_of_measurement: A
device_class: current
accuracy_decimals: 1
internal: false
filters:
- lambda: !lambda |-
return (round(min(id(auto_ccl_moving_average).state, x) * 10) / 10);
# +--------------------------------------+
# | Auto Discharge Current Control |
# +--------------------------------------+
# First, an initial discharge current is calculated based upon the minimum cell voltage but only if the Auto Discharge Current switch is enabled.
- platform: copy
source_id: min_cell_voltage
name: ${name} Initial Discharge Current
id: auto_dcl_initial
unit_of_measurement: A
device_class: current
internal: true
filters:
- lambda: !lambda |-
// Auto Discharge Current function
if (id(can_switch_auto_discharge_current).state) {
if (id(min_cell_voltage).state < id(cell_uvpr).state) return 0.0;
else return max(0.0,(- pow(${discharge_a_factor_curve_end}, pow( max(0.0, ((x - ${discharge_knee_v}) / (id(cell_uvpr).state - ${discharge_knee_v}))),${discharge_a_factor_curve_shape}))+2) * id(discharging_current).state);
}
else return id(discharging_current).state;
# Second, an exponential moving average is calculated. This will be used to smooth the transition between different initial discharge current values.
- platform: copy
source_id: auto_dcl_initial
name: ${name} Moving Average Discharge Current
id: auto_dcl_moving_average
unit_of_measurement: A
device_class: current
internal: true
filters:
- exponential_moving_average:
alpha: 0.15
send_every: 1
send_first_at: 1
# Third, if the instantaneous initial discharge current value is lower than the moving average, use that, otherwise use the moving average.
# This means that cell voltage drops will be reacted to quickly, but increased cell voltages will not, preventing oscillation of requested current.
- platform: copy
source_id: auto_dcl_initial
name: ${name} Requested Discharge Current
id: auto_dcl
unit_of_measurement: A
device_class: current
accuracy_decimals: 1
internal: false
filters:
- lambda: !lambda |-
return (round(min(id(auto_dcl_moving_average).state, x) * 10) / 10);
# +--------------------------------------+
# | Auto Charge Voltage Control |
# +--------------------------------------+
- platform: template
name: ${name} Auto Charge Voltage
id: auto_cvl
unit_of_measurement: V
device_class: voltage
internal: true
lambda: !lambda |-
// Variables
float charge_v_factor = ${charge_v_factor};
float cell_bulk_v = (id(bulk_voltage).state / id(cell_count).state);
float target_total_v = 0;
float excess_v = 0;
float offset_v = 0;
float dyn_chg_v = 0;
// Check feature enabled or if any cells are at / above bulk voltage
if ((!id(can_switch_auto_charge_voltage).state) | (id(max_cell_voltage).state < cell_bulk_v)){
return id(bulk_voltage).state;
} else {
// Create array of cell voltages
float cell_array[] = {
id(cell_v_01).state, id(cell_v_02).state, id(cell_v_03).state, id(cell_v_04).state,
id(cell_v_05).state, id(cell_v_06).state, id(cell_v_07).state, id(cell_v_08).state,
id(cell_v_09).state, id(cell_v_10).state, id(cell_v_11).state, id(cell_v_12).state,
id(cell_v_13).state, id(cell_v_14).state, id(cell_v_15).state, id(cell_v_16).state,
id(cell_v_17).state, id(cell_v_18).state, id(cell_v_19).state, id(cell_v_20).state,
id(cell_v_21).state, id(cell_v_22).state, id(cell_v_23).state, id(cell_v_24).state,
};
// Calculate actual total voltage
for(int i = 0; i < id(cell_count).state; i++) {
target_total_v += cell_array[i];
};
// Add cell voltage offset to target total voltage if possible
for(int i = 0; i < id(cell_count).state; i++) {
if (cell_array[i] >= cell_bulk_v) {
excess_v = cell_array[i] - cell_bulk_v;
offset_v = (pow(excess_v,2))*(charge_v_factor*-100);
target_total_v += offset_v;
}
};
// Use minimum of dynamic charge voltage or bulk voltage
dyn_chg_v = min(id(bulk_voltage).state, target_total_v);
// Return automatic charge voltage
return ceil(dyn_chg_v * 10) / 10;
}
update_interval: 1s
text_sensor:
- platform: jk_bms_ble
errors:
name: "${name} errors"
total_runtime_formatted:
name: "${name} total runtime formatted"
entity_category: diagnostic
# +--------------------------------------+
# | Template text sensors |
# +--------------------------------------+
- platform: template
name: ${name} Uptime Human Readable
id: uptime_human
icon: mdi:clock-start
entity_category: diagnostic
- platform: template
name: ${name} Last Complete Charge Human Readable
id: eoc_timestamp_human
icon: mdi:clock-start
entity_category: diagnostic
- platform: template
name: "${name} Charging Status"
id: charging_status
number:
- platform: jk_bms_ble
jk_bms_ble_id: bms0
balance_trigger_voltage:
id: balance_trigger_voltage
name: "${name} balance trigger voltage"
cell_count:
id: cell_count
name: "${name} cell count"
total_battery_capacity:
name: "${name} total battery capacity"
cell_voltage_overvoltage_protection:
id: cell_ovp
name: "${name} cell voltage overvoltage protection"
cell_voltage_overvoltage_recovery:
id: cell_ovpr
name: "${name} cell voltage overvoltage recovery"
cell_voltage_undervoltage_protection:
id: cell_uvp
name: "${name} cell voltage undervoltage protection"
cell_voltage_undervoltage_recovery:
id: cell_uvpr
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"
# +--------------------------------------+
# | Slider / Box |
# +--------------------------------------+
- platform: template
name: "${name} Bulk voltage"
id: "bulk_voltage"
step: 0.1
min_value: 54.6 # 3.90
max_value: 58.8 # 4.20
restore_value: true
mode: "${input_number_mode}"
initial_value: "${bulk_v}"
unit_of_measurement: V
icon: mdi:battery-charging
optimistic: true
entity_category: config
- platform: template
name: "${name} Float voltage"
id: "float_voltage"
step: 0.1
min_value: 51.8 # 3.70
max_value: 58.8 # 4.20
restore_value: true
mode: "${input_number_mode}"
initial_value: "${float_v}"
unit_of_measurement: V
icon: mdi:battery-charging
optimistic: true
entity_category: config
- platform: template
name: "${name} Rebulk V."
id: "rebulk_voltage"
step: 0.1
min_value: 50.4 # 3.6
max_value: 54.6 # 3.9
restore_value: true
mode: "${input_number_mode}"
initial_value: "${rebulk_v}"
unit_of_measurement: V
icon: mdi:sine-wave
optimistic: true
entity_category: config
- platform: template
name: "${name} Absorption Offset V."
id: "absorption_offset"
step: 0.05
min_value: 0
max_value: 0.3
restore_value: true
mode: "${input_number_mode}"
initial_value: 0.1
unit_of_measurement: V
icon: mdi:sine-wave
optimistic: true
entity_category: config
- platform: template
name: "${name} Charging current max"
id: "charging_current"
step: 1
min_value: 0
max_value: "${charge_a}"
restore_value: true
mode: "${input_number_mode}"
initial_value: "${charge_a}"
unit_of_measurement: A
icon: mdi:current-dc
optimistic: true
entity_category: config
- platform: template
name: "${name} Discharging current max"
id: "discharging_current"
step: 1
min_value: 0
max_value: "${discharge_a}"
restore_value: true
mode: "${input_number_mode}"
initial_value: "${discharge_a}"
unit_of_measurement: A
icon: mdi:current-dc
optimistic: true
entity_category: config
button:
- platform: jk_bms_ble
retrieve_settings:
name: "${name} retrieve settings"
entity_category: config
retrieve_device_info:
name: "${name} retrieve device info"
entity_category: config
- platform: restart
name: "JK-BMS ESP32 Restart"
entity_category: config
# +--------------------------------------+
# | Start CAN Handling |
# +--------------------------------------+
canbus: # 0x305 - Inverter ACK - SMA/LG/Pylon/Goodwe reply
- platform: esp32_can
tx_pin: ${can_tx_pin}
rx_pin: ${can_rx_pin}
can_id: 4
bit_rate: 500kbps
on_frame:
- can_id: 0x305
then:
- light.toggle:
id: blue_led
- lambda: |-
id(can_ack_counter) = 0; // Reset ACK counter
id(can_bus_status).publish_state(true); // Set CANBUS Status to ON
ESP_LOGI("main", "received can id: 0x305 ACK");
interval:
- interval: 120s
then:
- lambda: id(can_ack_counter) = 0; // Reset ACK counter for test inverter ACK
- interval: 100ms
then:
- if:
condition:
lambda: |-
if (id(can_ack_counter) < 20) { // Inverter ACK ? => CANBUS ON
id(can_ack_counter)++; // CANBUS ACK counter ++
id(can_msg_counter)++; // CANBUS MSG counter ++
return true; // Condition OK
}
else if (id(can_bus_status).state == false) { // CANBUS already OFF ?
return false; // Nothing to do
}
else {
id(can_bus_status).publish_state(false); // Set CANBUS Status to OFF
ESP_LOGI("main", "No rx can 0x305 reply, Inverter not connected/responding...");
return false; // Condition NOK
}
then:
- if: # 0x359 - Protection Alarms, Warning and Flags ( PYLON / PYLON + )
condition:
lambda: return ((id(can_msg_counter) == 1) & ((id(can_protocol).active_index() == 1) | (id(can_protocol).active_index() == 2)));
then: