Help Please "Rain Water Tank"

[zboblamont]

@mfalkvidd Nobody could see that coming, precisely underlining your response..... :ok_hand:

[Wuffi0815]

I want to know the filling level of the tank and drive a pump.

Should everything also run in fhem.

Components: Arduino; HC-SR04; 10 A 1 Channel Arduino Compatible Relay Module

[zboblamont]

@wuffi0815 You skipped right past "But it would be a whole lot easier if you told us what problem you are experiencing." and headed out into the desert....

[Wuffi0815]

The distance is not displayed. And goes into a loop.
Sometimes I have to refresh 2-3x

no Connect: !TSF:MSG:SEND,102-103-0-0,s=1,c=1,t=35,pt=2,l=2,sg=0,ft=5,st=NACK:2457

[zboblamont]

@wuffi0815 "The distance is not displayed. And goes into a loop.
Sometimes I have to refresh 2-3x"
?
That's all? Oh well, seems simple really, you just change A for B, and give C a slight squeeze, but only on the left side, then give it a wallop with a cotton bud, almost guaranteed to fix it....
Taking the mickey aside, please give details, unless the complete absence of information is deliberate...

[hek]

Please keep a nice tone folks.

You seem to present sensors with the same id twice. CHILD_ID_D=1 (S_DISTANCE) and in the loop sensor starts with id 1 also (S_BINARY).

[Wuffi0815]

Thank You Is working!
From time to time you overlook small errors with great effect. :)

[Wuffi0815]

Works fine so far but the relay can not be controlled after about 30min.

Can it be that my arduino nano pro is too weak?

// Enable debug prints
#define MY_DEBUG
#define MY_NODE_ID 103

// Enable and select radio type attached
#define MY_RADIO_NRF24

#define MY_REPEATER_FEATURE

#include <SPI.h>
#include <MySensors.h>  
#include <NewPing.h>

#define CHILD_ID_V 2
#define CHILD_ID_D 3
#define TRIGGER_PIN  6  // Arduino pin tied to trigger pin on the ultrasonic sensor.
#define ECHO_PIN     5  // Arduino pin tied to echo pin on the ultrasonic sensor.
#define MAX_DISTANCE 300 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.

#define RELAY_PIN  4  // Arduino Digital I/O pin number for first relay
#define NUMBER_OF_RELAYS 1 // Total number of attached relays
#define RELAY_ON 1  // GPIO value to write to turn on attached relay
#define RELAY_OFF 0 // GPIO value to write to turn off attached relay

//constant to calculate the volume of the tank
#define high_water_level 230 //tank depth from the lowest point to the max water level
#define distance_sensor 10 //distance in cm between the max water level and the sensor
#define tank_volume 15000 //tank volume when it is fitted to the max water level
unsigned long SLEEP_TIME = 36000; // Sleep time between reads (in milliseconds)3600000 = 1h

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.
MyMessage volume_msg(CHILD_ID_V, V_VOLUME);
MyMessage distance_msg(CHILD_ID_D, V_DISTANCE);
int lastDist;
bool metric = true;

void before()
{
    for (int sensor=1, pin=RELAY_PIN; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
        // Then set relay pins in output mode
        pinMode(pin, OUTPUT);
    }
}

void setup()  
{ 
  metric = getControllerConfig().isMetric;
}

void presentation()
{
  // Send the sketch version information to the gateway and Controller
  sendSketchInfo("Rain Water Tank", "1.0");

    for (int sensor=1, pin=RELAY_PIN; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
        // Register all sensors to gw (they will be created as child devices)
        present(sensor, S_BINARY);
    }
  
  // Register all sensors to gw (they will be created as child devices)
  present(CHILD_ID_V, S_WATER);
  present(CHILD_ID_D, S_DISTANCE);
}

void loop()      
{ 
  int dist = metric?sonar.ping_cm():sonar.ping_in();
  Serial.print("Volume ");
  Serial.print(tank_level("liters"));
  Serial.println("L");
  Serial.print("Ping: ");
  Serial.print(dist); // Convert ping time to distance in cm and print result (0 = outside set distance range)
  Serial.println(metric?" cm":" in");

  if (dist != lastDist) {
      send(distance_msg.set(dist));
      lastDist = dist;
  }

  send(volume_msg.set(tank_level("liters")));
  sleep(SLEEP_TIME);
}

void receive(const MyMessage &message)
{
    // We only expect one type of message from controller. But we better check anyway.
    if (message.type==V_STATUS) {
        // Change relay state
        digitalWrite(message.sensor-1+RELAY_PIN, message.getBool()?RELAY_ON:RELAY_OFF);
        // Store state in eeprom
        saveState(message.sensor, message.getBool());
        // Write some debug info
        Serial.print("Incoming change for sensor:");
        Serial.print(message.sensor);
        Serial.print(", New status: ");
        Serial.println(message.getBool());
    }
}

//function to measure and convert the tank volume
int tank_level(String unit)
{
  int level_liters = 0,level_percent = 0, echo_us = 0, echo_cm = 0, water_level_cm = 0;
  echo_us = sonar.ping_median(); //return the median time of 5measures between the ping and the echo in microseconds
  echo_cm = echo_us / US_ROUNDTRIP_CM; //convert the echo time to distance in cm.
  water_level_cm = high_water_level - (echo_cm - distance_sensor);
  level_liters = water_level_cm * ((tank_volume) / high_water_level);
  level_percent = (water_level_cm * 100) / high_water_level;
  if (unit == "liters")
  {
    return level_liters;
  }
  else if (unit == "percent")
  {
    return level_percent;
  }
  else
  {
    return 0;
  }
}

[Junglejake]

Provide a detailed sketch/circuit and then I am sure we can find the answer. It might be that your power circuit is not adequate, but it is difficult to ascertain until one can review the diagram.

[Wuffi0815]

Sorry for my bad drawing skills.

[skywatch]

So what is giving 5v to this?