mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-13 10:34:02 +01:00
5d870401ff
* Update daly_bms.rst Add a couple of examples of Daly BMS control using uart.write * Examples of Daly BMS control using uart.write fixed lint errors * Examples of Daly BMS control using uart.write probably fixed lint errors * Fixed every boot up battery level setup
391 lines
14 KiB
ReStructuredText
391 lines
14 KiB
ReStructuredText
Daly BMS Sensor
|
|
===============
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up a Daly Smart BMS
|
|
:image: daly_bms.jpg
|
|
|
|
The ``daly_bms`` sensor platform allows you to use a Daly Smart BMS
|
|
(`more info <https://dalyelec.en.made-in-china.com/>`__)
|
|
with ESPHome.
|
|
|
|
The BMS communicates via :ref:`UART <uart>`.
|
|
|
|
.. figure:: images/daly_bms_example.png
|
|
:align: center
|
|
:width: 100.0%
|
|
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry (ESP8266)
|
|
uart:
|
|
tx_pin: GPIO1
|
|
rx_pin: GPIO3
|
|
baud_rate: 9600
|
|
|
|
daly_bms:
|
|
update_interval: 20s
|
|
|
|
sensor:
|
|
- platform: daly_bms
|
|
voltage:
|
|
name: "Battery Voltage"
|
|
current:
|
|
name: "Battery Current"
|
|
battery_level:
|
|
name: "Battery Level"
|
|
max_cell_voltage:
|
|
name: "Max Cell Voltage"
|
|
max_cell_voltage_number:
|
|
name: "Max Cell Voltage Number"
|
|
min_cell_voltage:
|
|
name: "Min Cell Voltage"
|
|
min_cell_voltage_number:
|
|
name: "Min Cell Voltage Number"
|
|
max_temperature:
|
|
name: "Max Temperature"
|
|
max_temperature_probe_number:
|
|
name: "Max Temperature Probe Number"
|
|
min_temperature:
|
|
name: "Min Temperature"
|
|
min_temperature_probe_number:
|
|
name: "Min Temperature Probe Number"
|
|
remaining_capacity:
|
|
name: "Remaining Capacity"
|
|
cells_number:
|
|
name: "Cells Number"
|
|
temperature_1:
|
|
name: "Temperature 1"
|
|
temperature_2:
|
|
name: "Temperature 2"
|
|
cell_1_voltage:
|
|
name: "Cell 1 Voltage"
|
|
cell_2_voltage:
|
|
name: "Cell 2 Voltage"
|
|
cell_3_voltage:
|
|
name: "Cell 3 Voltage"
|
|
cell_4_voltage:
|
|
name: "Cell 4 Voltage"
|
|
|
|
text_sensor:
|
|
- platform: daly_bms
|
|
status:
|
|
name: "BMS Status"
|
|
|
|
|
|
binary_sensor:
|
|
- platform: daly_bms
|
|
charging_mos_enabled:
|
|
name: "Charging MOS"
|
|
discharging_mos_enabled:
|
|
name: "Discharging MOS"
|
|
|
|
Component/Hub
|
|
-------------
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **update_interval** (*Optional*, :ref:`config-time`): Delay between data requests.
|
|
- **address** (*Optional*, int): Address to use, defaults to ``0x80``.
|
|
|
|
Sensor
|
|
------
|
|
|
|
A sensor platform to read BMS data
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **voltage** (*Optional*): Voltage of the battery pack connected to Daly BMS.
|
|
|
|
- **name** (**Required**, string): The name for the voltage sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **current** (*Optional*): Current flowing trough the BMS (input or output from batttery).
|
|
|
|
- **name** (**Required**, string): The name for the current sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **battery_level** (*Optional*): Battery level in % (SoC).
|
|
|
|
- **name** (**Required**, string): The name for the SoC sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **max_cell_voltage** (*Optional*): The cell of the battery with the higher voltage.
|
|
|
|
- **name** (**Required**, string): The name for the Max Cell Voltage sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **max_cell_voltage_number** (*Optional*): The cell number of the battery with the higher voltage.
|
|
|
|
- **name** (**Required**, string): The name for the Max Cell Voltage Number sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **min_cell_voltage** (*Optional*): The cell of the battery with the lower voltage.
|
|
|
|
- **name** (**Required**, string): The name for the Min Cell Voltage sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **min_cell_voltage_number** (*Optional*): The cell number of the battery with the lower voltage.
|
|
|
|
- **name** (**Required**, string): The name for the Min Cell Voltage Number sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **max_temperature** (*Optional*): The higher temperature measured from the temperature sensors.
|
|
|
|
- **name** (**Required**, string): The name for the Max Temperature sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **max_temperature_probe_number** (*Optional*): The sensor number which has measured the higher temperature.
|
|
|
|
- **name** (**Required**, string): The name for the Max Temperature Probe Number sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **min_temperature** (*Optional*): The lower temperature measured from the temperature sensors.
|
|
|
|
- **name** (**Required**, string): The name for the Min Temperature sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **min_temperature_probe_number** (*Optional*): The sensor number which has measured the lower temperature.
|
|
|
|
- **name** (**Required**, string): The name for the Min Temperature Probe Number sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **remaining_capacity** (*Optional*): The capacity in Ah left in the battery.
|
|
|
|
- **name** (**Required**, string): The name for the Remaining Capacity sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **cells_number** (*Optional*): The number of cells in series in the battery pack.
|
|
|
|
- **name** (**Required**, string): The name for the Cells Number sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **temperature_1** (*Optional*): The first temperature sensor.
|
|
|
|
- **name** (**Required**, string): The name for the first temperature sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **temperature_2** (*Optional*): The second temperature sensor.
|
|
|
|
- **name** (**Required**, string): The name for the second temperature sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **cell_1_voltage** (*Optional*): The voltage of cell number 1. Cell number can be from 1 to 16.
|
|
|
|
- **name** (**Required**, string): The name for the cell voltage sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
Text Sensor
|
|
-----------
|
|
|
|
Text sensor that indicates the status of BMS.
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **status** (*Optional*): The BMS Status (Charging, Discharging, Stationary).
|
|
|
|
- **name** (**Required**, string): The name for the BMS status text sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Text Sensor <config-text_sensor>`.
|
|
|
|
Binary Sensor
|
|
-------------
|
|
|
|
Binary sensor that indicates the status of MOS.
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **charging_mos_enabled** (*Optional*): The BMS charging MOS status to enable the recharge of the battery.
|
|
|
|
- **name** (**Required**, string): The name for the charging MOS binary sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Binary Sensor <config-binary_sensor>`.
|
|
|
|
- **discharging_mos_enabled** (*Optional*): The BMS discharging mos status to enable the load.
|
|
|
|
- **name** (**Required**, string): The name for the discharging MOS binary sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
|
|
- All other options from :ref:`Binary Sensor <config-binary_sensor>`.
|
|
|
|
|
|
Control BMS
|
|
-----------
|
|
At this moment Daly sensor platform don't suppport controlling you BMS, but you can make some stuff using uart.write
|
|
|
|
First you need to setup binary sensors for charging and disharging MOS
|
|
|
|
.. code-block:: yaml
|
|
|
|
|
|
binary_sensor:
|
|
- platform: daly_bms
|
|
charging_mos_enabled:
|
|
name: "Daly Charging MOS"
|
|
id: bin_daly_chg_mos # binary MOS sensor must have ID to use with switch
|
|
internal: True # but you can make it internal to avoid duplication
|
|
discharging_mos_enabled:
|
|
name: "Daly Discharging MOS"
|
|
id: bin_daly_dischg_mos # binary MOS sensor must have ID to use with switch
|
|
internal: True # but you can make it internal to avoid duplication
|
|
|
|
Then you can add switches
|
|
|
|
.. code-block:: yaml
|
|
|
|
|
|
switch:
|
|
- platform: template
|
|
name: "Daly Charging MOS"
|
|
lambda: |-
|
|
if (id(bin_daly_chg_mos).state) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
turn_on_action:
|
|
- uart.write:
|
|
data: [0xA5, 0x40, 0xDA, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC8]
|
|
- logger.log:
|
|
format: "Send cmd to Daly: Set charge MOS on"
|
|
turn_off_action:
|
|
- uart.write:
|
|
data: [0xA5, 0x40, 0xDA, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC7]
|
|
- logger.log:
|
|
format: "Send cmd to Daly: Set charge MOS off"
|
|
|
|
- platform: template
|
|
name: "Daly Discharging MOS"
|
|
lambda: |-
|
|
if (id(bin_daly_dischg_mos).state) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
turn_on_action:
|
|
- uart.write:
|
|
data: [0xA5, 0x40, 0xD9, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC7]
|
|
- logger.log:
|
|
format: "Send cmd to Daly: Set discharge MOS on"
|
|
turn_off_action:
|
|
- uart.write:
|
|
data: [0xA5, 0x40, 0xD9, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC6]
|
|
- logger.log:
|
|
format: "Send cmd to Daly: Set discharge MOS off"
|
|
|
|
|
|
Also you can add select to change battery level
|
|
|
|
.. code-block:: yaml
|
|
|
|
|
|
select:
|
|
- platform: template
|
|
name: "Daly Battery Level setup"
|
|
optimistic: True
|
|
options:
|
|
- 100%
|
|
- 75%
|
|
- 50%
|
|
- 25%
|
|
- 0%
|
|
initial_option: 100%
|
|
set_action:
|
|
then:
|
|
- if:
|
|
condition:
|
|
lambda: 'return x == "100%";'
|
|
then:
|
|
- uart.write:
|
|
data: [0xA5, 0x40, 0x21, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xE8, 0xF9]
|
|
- logger.log:
|
|
format: "Send cmd to Daly: Set SOC to 100%"
|
|
else:
|
|
- if:
|
|
condition:
|
|
lambda: 'return x == "75%";'
|
|
then:
|
|
- uart.write:
|
|
data: [0xA5, 0x40, 0x21, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xEE, 0xFE]
|
|
- logger.log:
|
|
format: "Send cmd to Daly: Set SOC to 75%"
|
|
else:
|
|
- if:
|
|
condition:
|
|
lambda: 'return x == "50%";'
|
|
then:
|
|
- uart.write:
|
|
data: [0xA5, 0x40, 0x21, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xF4, 0x03]
|
|
- logger.log:
|
|
format: "Send cmd to Daly: Set SOC to 50%"
|
|
else:
|
|
- if:
|
|
condition:
|
|
lambda: 'return x == "25%";'
|
|
then:
|
|
- uart.write:
|
|
data: [0xA5, 0x40, 0x21, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFA, 0x08]
|
|
- logger.log:
|
|
format: "Send cmd to Daly: Set SOC to 25%"
|
|
else:
|
|
- if:
|
|
condition:
|
|
lambda: 'return x == "0%";'
|
|
then:
|
|
- uart.write:
|
|
data: [0xA5, 0x40, 0x21, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0E]
|
|
- logger.log:
|
|
format: "Send cmd to Daly: Set SOC to 0%"
|
|
|
|
|
|
UART Connection
|
|
---------------
|
|
|
|
Connect RX from BMS to TX in ESP board and TX from BMS to RX in ESP board
|
|
|
|
.. figure:: images/daly_bms_pinout.png
|
|
:align: center
|
|
:width: 100.0%
|
|
|
|
Uart Pinout.
|
|
|
|
**3.3v Warning:** some BMS 3.3v cant source large currents and may not work to properly power the ESP. If you are having WIFI connection issues or similar, try a different power source. There is 12-15v available on the Daly connector which via a proper step-down converter can properly power the ESP.
|
|
|
|
On the ESP32 (untested on ESP8266) if you are having missing data (such as Temperature 1/2), it may be due to UART buffer size.
|
|
Add the following to your configuration to increase the buffer from the default 256 to 512.
|
|
|
|
.. code-block::
|
|
|
|
uart:
|
|
...
|
|
rx_buffer_size: 512
|
|
|
|
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :ref:`sensor-filters`
|
|
- :apiref:`daly_bms/daly_bms.h`
|
|
- :ghedit:`Edit`
|