hcsr04 ultrasonic sensor error

[geccko]

• [ Y] I have read the README.md file and visited the Documentation to see if the information there helps.

Describe the bug It always shows me the same error indicating that the configuration is incorrect. I've checked many times and can't find the fault.

Expected behavior mqtt-io connect to the sensor hcsr04 and send values to mqtt server

Error messages and traceback

pi@server:~ $ python3 -m mqtt_io config.yml

2022-07-08 09:59:30 mqtt_io.__main__ [ERROR] MqttIo crashed!
Traceback (most recent call last):
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/__main__.py", line 107, in main
    mqtt_gpio.run()
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/server.py", line 1230, in run
    self._init_sensor_modules()
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/server.py", line 255, in _init_sensor_modules
    self.sensor_modules[sens_config["name"]] = _init_module(
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/server.py", line 122, in _init_module
    module_config = validate_and_normalise_config(module_config, module_schema)
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/config/__init__.py", line 105, in validate_and_normalise_config
    raise ConfigValidationFailed(
mqtt_io.exceptions.ConfigValidationFailed: Config did not validate:
burst:
- unknown field
pin_echo:
- unknown field
pin_trigger:
- unknown field

Traceback (most recent call last):
  File "/usr/lib/python3.9/runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/__main__.py", line 115, in <module>
    main()
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/__main__.py", line 107, in main
    mqtt_gpio.run()
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/server.py", line 1230, in run
    self._init_sensor_modules()
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/server.py", line 255, in _init_sensor_modules
    self.sensor_modules[sens_config["name"]] = _init_module(
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/server.py", line 122, in _init_module
    module_config = validate_and_normalise_config(module_config, module_schema)
  File "/home/pi/.local/lib/python3.9/site-packages/mqtt_io/config/__init__.py", line 105, in validate_and_normalise_config
    raise ConfigValidationFailed(
mqtt_io.exceptions.ConfigValidationFailed: Config did not validate:
burst:
- unknown field
pin_echo:
- unknown field
pin_trigger:
- unknown field

Config

mqtt:
  host: 192.168.2.254
  port: 1883
  topic_prefix: watertank
  ha_discovery:
    enabled: yes

# Sensors
sensor_modules:
  - name: ds18b20
    module: ds18b
    type: DS18B20
    address: 00000026df4e

  - name: hcsr04
    module: hcsr04
    burst: 10
    pin_trigger: 20
    pin_echo: 21

sensor_inputs:
  - name: temp_exterior
    module: ds18b20
    interval: 60
    digits: 2

  - name: distance
    module: hcsr04
    interval: 10  # take a measurement every 10s
    digits: 1

Hardware

• Platform: Raspberry Pi
• Connected hardware: DS18B20, HCSR04

System:

• OS: Raspbian 11
• Python version: Python 3.9.2
• User you're running as: pi
• Using a virtualenv?: no

Additional context I have tried reinstalling versions 2.2.6 and 2.2.7 with the same results.

[geccko]

Nobody? Please I need help with this.

[baryonicnonsense]

This is the working configuration I use

sensor_modules:
  - name: hcsr04_sensor
    module: hcsr04

sensor_inputs:
 - name: distance
   module: hcsr04_sensor
   interval: 300
   digits: 2
   pin_echo: 17
   pin_trigger: 13
   burst: 3

[geccko]

Hi @baryonicnonsense,

I tried your configuration but show me the followint error:

Traceback (most recent call last):
  File "/home/pi/mqtt-io/mqtt_io/server.py", line 561, in poll_sensor
    value = await get_sensor_value()
  File "/home/pi/.local/lib/python3.9/site-packages/backoff/_async.py", line 133, in retry
    ret = await target(*args, **kwargs)
  File "/home/pi/.local/lib/python3.9/site-packages/backoff/_async.py", line 66, in retry
    ret = await target(*args, **kwargs)
  File "/home/pi/mqtt-io/mqtt_io/server.py", line 556, in get_sensor_value
    return await sensor_module.async_get_value(sens_conf)
  File "/home/pi/mqtt-io/mqtt_io/modules/sensor/__init__.py", line 57, in async_get_value
    return await loop.run_in_executor(ThreadPoolExecutor(), self.get_value, sens_conf)
  File "/usr/lib/python3.9/concurrent/futures/thread.py", line 52, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/home/pi/mqtt-io/mqtt_io/modules/sensor/hcsr04.py", line 131, in get_value
    return self.sensors[sens_conf["name"]].measure_range()
  File "/home/pi/mqtt-io/mqtt_io/modules/sensor/hcsr04.py", line 100, in measure_range
    raise RuntimeError(
RuntimeError: Unable to measure range on HC-SR04 sensor 'distance'

My config is ::

sensor_modules:

• name: hcsr04_sensor module: hcsr04

sensor_inputs:

• name: distance module: hcsr04_sensor interval: 10 digits: 20 pin_echo: 21 pin_trigger: 20 burst: 3

[baryonicnonsense]

That looks like an issue with the sensor itself. I'd double check that everything is wired up correctly, the echo and trigger pins are properly set, and that the distance you are attempting to measure is within the capabilities of the sensor.

[geccko]

Hi @baryonicnonsense,

It's working perfectly! It was a misconfiguration with the pins of the raspberry!

Thanks!