Does “Pot Pump PWM” show up in the HA front end?
Yes. It does showed up in the HA front end. I can use this to adjust the pwm of the IRLZ44N mosfet using platform: ledc. I am not sure why the sensor.waterflowrate is not updated in the HA front end.(each time after automation triggered in esphome).
I have also created a helper input_number.waterflowrate in HA/automations&scenes/helper.
In HA, configuration.yaml
- platform: template
sensors:
waterflowrate:
value_template: '{{ states.input_number.waterflowrate.state | int }}'
unit_of_measurement: "%"
In esphome,
- platform: gpio # Physical manual watering switch
pin:
number: 23
mode: INPUT_PULLUP
inverted: True
filters:
- delayed_on: 10ms
name: Manual watering
id: manual_plant_watering
device_class: running
on_press:
then:
- output.turn_on: pot_pump_pwm
- output.ledc.set_frequency:
id: pot_pump_pwm
frequency: "3Hz" # My motor is only worked correctly at 3Hz when put in a scale of a 100% input_number.
- output.set_level:
id: pot_pump_pwm
level: !lambda 'return (id(waterflowrate).state/100);'
on_release:
then:
- output.turn_off: pot_pump_pwm
How do you have waterflowrate defined in ESPHome?
Maybe I’ve missed it but I can’t see it above.
Sorry for missing out this part. Am I done it correctly?
#HA sensor taking data value from input_number,
- platform: homeassistant
name: "Water flow rate %"
entity_id: sensor.waterflowrate
id: waterflowrate
unit_of_measurement: "%"
When you look in HA front end, are you seeing “Water flow rate %” when looking at the integration?
Hi Ash,
In HA front end,inside the integration I only see fan.waterflowrate, I can adjust the switch and PWM in that “Controls” . I guess I have missed to define the Water flow rate % in Esphome. Can you please guide me in this part. 
I am just started as a beginner in esphome.
Thanks in advance.
Please can you post your ESPHome config in its entirety, in one block?
Hi Ash,
My esphome config is a mess now. Yesterday just got my esp32-devkit-v1 burn (it was real hot on touching, suspected from shorted or overloaded onboard regulator after adding a physical button). Below is the full config, many which were copied from your code to test it. Please kindly give me some guide to improve it.
I have not yet doing the code in HA config.yaml so this is only the esphome config.
TIA.
esphome:
name: motor
esp32:
board: esp32dev
framework:
type: arduino
# Enable logging
logger:
# Enable Home Assistant API
api:
i2c:
sda: GPIO21
scl: GPIO22
sun:
latitude: !secret latitude
longitude: !secret longitude
on_sunrise:
- then:
- binary_sensor.template.publish:
id: pot_sun_is_up
state: ON
on_sunset:
- then:
- binary_sensor.template.publish:
id: pot_sun_is_up
state: OFF
ota:
password: "eece41701fcccaad99cba87a8fbde705"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
ap:
ssid: ""
password: ""
font:
- file: "fonts/Arial.ttf"
id: arial
size: 12
captive_portal:
display:
- platform: ssd1306_i2c
model: "SSD1306 128x64"
# model: "SSD1306 128x32"
id: pot_display
rotation: 180
# reset_pin: D0
address: 0x3C
pages:
- id: pot_status
lambda: |-
it.printf(0, 00, id(arial), "System Status: %s", id(system_status).state ? "Good" : "Error");
it.printf(0, 12, id(arial), "WiFi: %s", id(wifi_connected).state ? "Connected" : "Disconnected");
it.printf(0, 24, id(arial), "API: %s", id(home_assistant_api_connected).state ? "Connected" : "Disconnected");
it.printf(0, 48, id(arial), "Motion: %s", id(motion_sensor).state ? "Detected" : "Not detected");
if (id(water_motor_running).state) {
it.printf(0, 36, id(arial), "Motor: Running %i%%", id(flow_rate_percent));
} else {
it.printf(0, 36, id(arial), "Motor: Stopped");
}
- id: watering
lambda: |-
it.printf(0, 00, id(arial), "Feeds for today: %i", id(calculated_water_per_day_variable));
it.printf(0, 12, id(arial), "Remain water: %i", id(water_left_today_variable));
it.printf(0, 24, id(arial), "Last water: %s", id(last_watering).state.c_str());
it.printf(0, 36, id(arial), "Amount: %.0fcm", id(tank_water_height).state);
it.printf(0, 48, id(arial), "Water in tank: %.0fcm", id(tank_water_height).state);
globals:
- id: last_feed_time_text
type: std::string
restore_value: no
- id: flow_rate # Rate to run feed motor. 0.2 equates to 1 rpm. From HA input_number.fish_feed_motor_feed_rate
type: float
restore_value: no
initial_value: '0.2'
- id: flow_rate_percent # feed_rate converted to percentage dor display
type: int
restore_value: no
initial_value: '20'
- id: water_left_today_variable # Used as counter for number of feeds made today. Set from calculated_feeds_per_day_variable
type: int # Decremented by dispense_food script completion
restore_value: no
initial_value: '0'
- id: calculated_water_per_day_variable # From HA sensor.calculated_feeds_per_day
type: int
restore_value: no
initial_value: '12'
- id: amount_per_dose # From HA sensor.feed_amount_per_dose
type: int
restore_value: no
initial_value: '20'
- id: post_feed_overrun_variable # From HA input_number.post_feed_overrun_HA
type: int
restore_value: no
initial_value: '5'
- id: pre_dose_height # What was the weight before feeding?
type: int
restore_value: no
initial_value: '0'
- id: post_dose_target_weight # What is the target weight after feeding finished?
type: int
restore_value: no
initial_value: '0'
- id: last_water_height_variable # What was the weight of the last feed?
type: int
restore_value: no
initial_value: '0'
- id: post_watering_tank_height_variable # Weight after last feed?
type: int
restore_value: no
initial_value: '0'
- id: disable_reset_time
type: int
restore_value: no
initial_value: '5'
time:
- platform: homeassistant
id: homeassistant_time
sensor:
#DHT11
- platform: dht
pin: 5
model: DHT22
temperature:
name: "Pot Temp"
humidity:
name: "Pot Humidity"
update_interval: 2s
# HC-SR04
- platform: ultrasonic
trigger_pin: 18
echo_pin: 19
name: "Pot water tank height"
id: tank_water_height
update_interval: 3s
filters:
# Replace the 0.42 by the height of your container. From the sensor to the bottom.
# I multiplied by 100 in order to get CM since the sensor works in meters
- lambda: return (0.12-x)*100;
unit_of_measurement: "cm"
on_value:
then:
- if: # Hopper weight is within limits
condition:
sensor.in_range:
id: tank_water_height
above: 2.0
below: 10.0
then:
- binary_sensor.template.publish:
id: tank_is_at_low_level
state: OFF
- binary_sensor.template.publish:
id: tank_is_full
state: OFF
- binary_sensor.template.publish:
id: tank_is_empty
state: OFF
- binary_sensor.template.publish:
id: tank_is_ok
state: ON
- if: # Hopper is bordering on empty
condition:
sensor.in_range:
id: tank_water_height
below: 2.0
then:
- binary_sensor.template.publish:
id: tank_is_empty
state: ON
- binary_sensor.template.publish:
id: tank_is_at_low_level
state: OFF
- binary_sensor.template.publish:
id: tank_is_full
state: OFF
- binary_sensor.template.publish:
id: tank_is_ok
state: OFF
- if: # Hopper is low level
condition:
sensor.in_range:
id: tank_water_height
above: 2.0
below: 5.0
then:
- binary_sensor.template.publish:
id: tank_is_empty
state: OFF
- binary_sensor.template.publish:
id: tank_is_at_low_level
state: ON
- binary_sensor.template.publish:
id: tank_is_full
state: OFF
- binary_sensor.template.publish:
id: tank_is_ok
state: OFF
on_value_range: # Hopper is high level
- above: 10.0
then:
- binary_sensor.template.publish:
id: tank_is_empty
state: OFF
- binary_sensor.template.publish:
id: tank_is_at_low_level
state: OFF
- binary_sensor.template.publish:
id: tank_is_full
state: ON
- binary_sensor.template.publish:
id: tank_is_ok
state: OFF
- platform: homeassistant
name: "Amount per dose"
entity_id: sensor.water_amount_per_dose #defined in homeassistant
id: water_amount_per_dose
on_value:
then:
- globals.set:
id: amount_per_dose
value: !lambda 'return x;'
- platform: homeassistant
name: "Calculated water per day"
entity_id: sensor.calculated_water_per_day #defined in homeassistant
id: feeds_per_day_from_ha
on_value:
then:
- globals.set:
id: calculated_water_per_day_variable
value: !lambda 'return x;'
#HA sensor taking data value from input_number,
# - platform: homeassistant
# name: "Water flow rate %"
# entity_id: sensor.waterflowrate
# id: waterflowrate
# unit_of_measurement: "%"
- platform: homeassistant # Set motor feed rate and intial value for motor
name: "Motor flow rate"
entity_id: input_number.pot_motor_flow_rate #defined in homeassistant
id: motor_flow_rate
on_value:
then:
- globals.set:
id: flow_rate
value: !lambda 'return x;'
- globals.set:
id: flow_rate_percent
value: !lambda 'return x * 100;'
- output.set_level:
id: pot_pump_pwm
level: !lambda 'return id(flow_rate);'
#Capacitive soil moisture sensor
#Dry 3.25 - taken from in the air, probably should do it directly in dry soil
#Wet 1.75 - taken from in a glass of water, probably should do it directly in saturated soil
- platform: adc
pin: GPIO33
id: moisture
filters:
- lambda: |-
if (x > 3.11) { // if over 3.25 volts, we are dry
return 0;
} else if (x < 1.68) { // if under 1.75 volts, we are fully saturated
return 100;
} else {
return (3.11-x) / (3.25-1.68) * 100.0; // use a linear fit for any values in between
}
name: "Pot Moisture"
unit_of_measurement: "% Moist"
icon: "mdi:water-percent"
update_interval: 2s
attenuation: 11db
on_value_range:
- below: 65.0
then:
- output.turn_on: pot_pump_pwm
- output.ledc.set_frequency:
id: pot_pump_pwm
frequency: "3Hz"
- output.set_level:
id: pot_pump_pwm
level: !lambda 'return (id(motor_flow_rate).state/100);' #return sensor value devided by 100, to make in percentage
- above: 80.0
then:
- output.turn_off: pot_pump_pwm
- platform: template # Feeds left to HA
name: "water left today"
id: water_left_today
text_sensor: # Calculated sunrise/sunset times for feeding window
- platform: sun
name: Sun Next Sunrise
type: sunrise
- platform: sun
name: Sun Next Sunset
type: sunset
- platform: template
name: "Last watering"
id: last_watering
# - platform: template
# name: "On board time"
# id: on_board_time_text
binary_sensor:
- platform: status # Availabilty for HA
name: "Pot status"
id: system_status
- platform: gpio # Motion sensor
pin: 25
name: "Pot PIR Sensor"
id: motion_sensor
device_class: motion
on_press:
then:
- light.turn_on:
id: light_status
brightness: 100%
red: 100%
green: 0%
blue: 0%
on_release:
then:
- light.turn_off:
id: light_status
- platform: gpio # Physical manual watering switch
pin:
number: 23
mode: INPUT_PULLUP
inverted: True
filters:
- delayed_on: 10ms
name: Manual watering
id: manual_plant_watering
device_class: running
on_press:
then:
- script.execute: dispense_food
- binary_sensor.template.publish:
id: watering_is_disabled
state: OFF
# - output.turn_on: pot_pump_pwm
# - output.ledc.set_frequency:
# id: pot_pump_pwm
# frequency: "3Hz"
# - output.set_level:
# id: pot_pump_pwm
# level: !lambda 'return (id(waterflowrate).state/100);'
# on_release:
# then:
# - output.turn_off: pot_pump_pwm
- platform: gpio # Physical advance display page button
pin:
number: 39
# mode: INPUT_PULLUP
inverted: True
name: "Next page"
id: next_page
on_press:
then:
- display.page.show_next: pot_display
- platform: gpio # Physical feed disable switch
pin:
number: 35
# mode: INPUT_PULLUP
name: "Disable Fish Feed"
id: disable_watering
filters:
- invert:
on_press:
then:
- if:
condition:
binary_sensor.is_on: watering_is_disabled
then:
- binary_sensor.template.publish:
id: watering_is_disabled
state: OFF
- homeassistant.service:
service: input_boolean.turn_off
data:
entity_id: input_boolean.disable_fish_feeder
else:
- homeassistant.service:
service: input_boolean.turn_on
data:
entity_id: input_boolean.disable_fish_feeder
- binary_sensor.template.publish:
id: watering_is_disabled
state: ON
- platform: template # Sun is up to HA
name: "Pot sun is up"
id: pot_sun_is_up
- platform: template # Sun is up to HA
name: "Fish feeder sun is up"
id: fish_feeder_sun_is_up
- platform: template # Hopper is full alert to HA from HX711 definition
name: "Tank is full"
id: tank_is_full
- platform: template # Hopper is low alert to HA from HX711 definition
name: "Tank is at low level"
id: tank_is_at_low_level
- platform: template # Hopper is empty alert to HA from HX711 definition
name: "Tank is empty"
id: tank_is_empty
- platform: template # Hopper is OK alert to HA from HX711 definition
name: "Tank is OK"
id: tank_is_ok
- platform: template # Hopper is blocked alert to HA from HX711 definition
name: "Discharge is blocked"
id: discharge_is_blocked
- platform: template # Hopper is over feeding alert to HA from HX711 definition
name: "Pot is over watering"
id: pot_is_over_watering
- platform: template # Hopper is over feeding alert to HA from HX711 definition
name: "Water motor running"
id: water_motor_running
- platform: template
name: "Home Assistant connected"
id: home_assistant_api_connected
- platform: template
name: "WiFi Connected"
id: wifi_connected
- platform: template
name: "Watering is disabled" # Feeding is disabled
id: watering_is_disabled
on_press:
then:
- script.execute: stop_motor
# - delay: !lambda 'return id(water_post_dispense_time_variable) * 1000;' # Continue to run water for post dispense flush period
# - switch.turn_off: feeder_water_valve_relay
- homeassistant.service:
service: input_boolean.turn_on
data:
entity_id: input_boolean.disable_fish_feeder
# - delay: !lambda 'return id(disable_reset_time) * 1000 * 60;' # Rest 'disabled' after x minutes
- binary_sensor.template.publish:
id: watering_is_disabled
state: OFF
on_release:
then:
- homeassistant.service:
service: input_boolean.turn_off
data:
entity_id: input_boolean.disable_fish_feeder
light: #led light
- platform: fastled_clockless
chipset: WS2811
id: light_status
pin: GPIO3
num_leds: 1
rgb_order: grb
name: "Pot LED"
output: #pump motor PWM pin output to IRLZ44N Gate pin
- platform: ledc
pin: 32
frequency: "3Hz"
id: pot_pump_pwm
- platform: gpio
pin: 23
id: enable_motor
fan:
- platform: speed
output: pot_pump_pwm
name: "Pot Pump PWM"
script:
- id: run_motor
then:
# - output.set_level:
# id: fish_feed_motor_pwm
# level: !lambda 'return id(feed_rate);'
- output.turn_on: enable_motor
- binary_sensor.template.publish:
id: water_motor_running
state: ON
- id: stop_motor
then:
- output.turn_off: enable_motor
- if: # When motor is stopped, check if hopper weight has reduced, if not, alert to HA
condition:
lambda: 'return id(tank_water_height).state > id(post_dose_target_weight);'
then:
- binary_sensor.template.publish:
id: discharge_is_blocked
state: ON
- if: # When motor is stopped, check if hopper weight is less than post
condition: # feed calculated weight (+ overrun allowance), if not, alert to HA
lambda: 'return id(tank_water_height).state < (id(post_dose_target_weight) + id(post_feed_overrun_variable));'
then:
- binary_sensor.template.publish:
id: pot_is_over_watering
state: ON
- binary_sensor.template.publish:
id: water_motor_running
state: OFF
- binary_sensor.template.publish:
id: manual_plant_watering
state: OFF
- text_sensor.template.publish: # Publish feed time to HA when motor stops # "%Y-%m-%d %H:%M"
id: last_watering
state: !lambda |-
char str[17];
time_t currTime = id(homeassistant_time).now().timestamp;
strftime(str, sizeof(str), "%d-%m %H:%M", localtime(&currTime));
return { str };
- id: dispense_food
then:
- binary_sensor.template.publish: # Reset blocked alert
id: discharge_is_blocked
state: OFF
- binary_sensor.template.publish: # Reset over feeding alert
id: pot_is_over_watering
state: OFF
# - globals.set: # Store hopper weight before feed
# id: pre_dose_weight
# value: !lambda 'return id(fish_food_hopper_weight).state;'
# - lambda: 'id(pre_dose_hopper_weight).publish_state(id(pre_dose_weight));' # Publish weight before feeding to HA
# - globals.set: # Store calculated hopper weight after feed
# id: post_dose_target_weight
# value: !lambda 'return id(pre_dose_weight) - id(amount_per_dose);'
# # - switch.turn_on: feeder_water_valve_relay # Open water valve for time period before food is dispensed
# - delay: !lambda 'return id(water_pre_dispense_time_variable) * 1000;'
- script.execute: run_motor # Run feed motor until hopper weight has dropped to calculated post feed weight
# - wait_until:
# condition:
# # or:
# - lambda: 'return id(fish_food_hopper_weight).state <= id(post_dose_target_weight);' # Target weight is dispensed
# # - lambda: 'return id(feed_motor).current_position >= id(feed_motor).target_position;' # Nothing is dispensed & limit of stepper reached
# - delay: !lambda 'return id(water_pre_dispense_time_variable) * 1000;' #temporary for testing
- script.execute: stop_motor # Turn off motor
# - lambda: 'id(post_dose_hopper_weight).publish_state(id(fish_food_hopper_weight).state);' # Publish weight after feeding to HA
# - lambda: 'id(weight_of_last_feed).publish_state(id(pre_dose_weight) - id(fish_food_hopper_weight).state);' # Publish weight of last feed to HA
- globals.set: # Store last feed weight
id: last_water_height_variable
value: !lambda 'return id(pre_dose_height) - id(tank_water_height).state;'
- globals.set: # Store last feed weight
id: post_watering_tank_height_variable
value: !lambda 'return id(tank_water_height).state;'
- lambda: 'id(water_left_today).publish_state(id(water_left_today_variable));' # Publish feeds left today
# - delay: !lambda 'return id(water_post_dispense_time_variable) * 1000;' # Continue to run water for post dispense flush period
# - switch.turn_off: feeder_water_valve_relay
# - homeassistant.service:
# service: input_boolean.turn_off
# data:
# entity_id: input_boolean.manually_feed_fish
- globals.set: # Decrement feeds today
id: water_left_today_variable
value: !lambda 'return id(water_left_today_variable) - 1;'
interval:
- interval: 10s
then:
- if:
condition:
wifi.connected:
then:
- binary_sensor.template.publish:
id: wifi_connected
state: ON
else:
- binary_sensor.template.publish:
id: wifi_connected
state: OFF
- if:
condition:
api.connected:
then:
- binary_sensor.template.publish:
id: home_assistant_api_connected
state: ON
else:
- binary_sensor.template.publish:
id: home_assistant_api_connected
state: OFF
I’m working in a RC Car with espHome, take a look please:
I really don’t understand at all because I use 2 switches of 4 at the same time connected to a L298N.
I have to use all 4 pins for forward, backward, right and left control. The other two pins on each side are for enabling the motors. There is no pin left for speed control.
This is the key to make it work perfectly. Could you tell me how to do it? Thanks in advance
Apologies for missing your reply.
Have you tidied it up yet or got it working?
1 Like
I’m not too sure what you are asking.
If you need to control additional motors you’ll need an additional LM298.
I need to control speed… the RC Car is very fast and sometimes uncontrollable. The important thing is not that it is connected to the L298N, it is important that are switches and each switch should be set to the same power when it is on. That should have same pwm on each switch to control it.
Here you have two examples of movement, 2 switch on and 2 switch off:
rc_car_forward:
alias: RC Car forward
sequence:
- service: switch.turn_off
data:
entity_id: switch.input1
- service: switch.turn_off
data:
entity_id: switch.input3
- delay:
milliseconds: 500
- service: switch.turn_on
data:
entity_id: switch.input2
- service: switch.turn_on
data:
entity_id: switch.input4
rc_car_right_rotation:
alias: RC Car right rotation
sequence:
- service: switch.turn_off
data:
entity_id: switch.input1
- service: switch.turn_off
data:
entity_id: switch.input4
- delay:
milliseconds: 500
- service: switch.turn_on
data:
entity_id: switch.input3
- service: switch.turn_on
data:
entity_id: switch.input2
mode: single
Just got my L298N and ongoing testing the esphome codes. I am now using L298N H-bridge platform and power-up the esp32 using the L298N 5V output. I guess I have figured out the “speed platform for the fan” thingy: I cant use the fan.set_level'. Instead, I can actually use output.set_level` to control the PWM for the ENABLE-A. This is so far so good for me…but still in progress of testing. Thanks for your help.
Do you mean the feeder of the control system?
Yea, I was looking at your yaml and curious what the hardware implementation looks like
Thank you! I solved as a light component and pwm output I also I read this later.
would you show us how to wire the esp32/8266 to the l293d shield
