Hi ive built a Slow sand filter that i have being controled with a audrino nano right now, now im merging over to esphome. so far i have the binary sensors and the solid state relay setup, but now im having issues with the automation part on node red, im using a esp32 devkit v4 board. the sensors are connected thru touch sense, ive got the sensitivity all setup, but i want it to turn the pump off when it hits the high mark, and turn back on when it goes past the low mark, any help would be nice 
Do you have a seperate sensor for high and low, or are you using a measurment device? Edit: ignore the question.
The reason I ask is why are you doing it in node red when you can do it all with ESPhome?
Will look something like this:
switch:
- platform: gpio
pin: GPIO3
name: "pump"
binary_sensor:
- platform: gpio
pin: GPIO4
name: "low_sensor"
on_press:
then:
- switch.turn_on: pump
binary_sensor:
- platform: gpio
pin: GPIO5
name: "high_sensor"
on_press:
then:
- switch.turn_off: pump
This assumes you have a sensor that closes when low reached and another that closes when high reached.
that is a better idea, keeping it just on the board and not running off node red, ill give that a try right now
K its close to working, now just gotta change the sending state on the low sensor around so when the water drop below the low sensor it shows sending state on
Or change: on_press: to on_release:
Hell ya! thanks for your help zoogara!
learning stuff everyday
have you ever played around with one of these? liquid level sensors
was going to put one in my systron, its just a 1200 liter tote
Nope - did read up on them when looking for tank sensors for a boat.
They just hook up to an analogue input pin then do a bit of math in lambda to convert to litres or percent full or whatever you want.
Read up on lambda filters.
so got the pump running now, it cycles proper, but now im not sure if u use Condition so when the water tank is full the pump wont turn on anymore even when the water drops below the low_sensor, i do have a 2 probes in the top of the tank
Pump Control
esp32_touch:
setup_mode: false
switch:
- platform: gpio
name: “Water Pump”
pin: GPIO12
id: pump
binary_sensor:
-
platform: esp32_touch
name: “low_sensor”
pin: GPIO13
threshold: 300
on_release:
then:
- switch.turn_on: pump -
platform: esp32_touch
name: “high_sensor”
pin: GPIO14
threshold: 300
on_press:
then:
- switch.turn_off: pump -
platform: esp32_touch
name: “Water Tank Full”
pin: GPIO27
id: tank
threshold: 300
off_…:
if:
condition:Same syntax for is_off
binary_sensor.is_on: tank
thats so far what i got, but when the water drops below the low_sensor it still wants to turn the pump on even tho the water tank is full
So not sure of your setup here, but first can you reformat your post. Any example code should be posted inside formatted text markers, use the </> button on the toolbar when posting / editing.
# Pump Control
esp32_touch:
setup_mode: false
switch:
- platform: gpio
name: "Water Pump"
pin: GPIO12
id: pump
binary_sensor:
- platform: esp32_touch
name: "low_sensor"
pin: GPIO13
threshold: 300
on_release:
then:
- switch.turn_on: pump
- platform: esp32_touch
name: "high_sensor"
pin: GPIO14
threshold: 300
on_press:
then:
- switch.turn_off: pump
- platform: esp32_touch
name: "Water Tank Full"
pin: GPIO27
id: tank
threshold: 300
off_...:
if:
condition:
# Same syntax for is_off
binary_sensor.is_on: tank
just need help with that last part of code, soo when the water tank is full, the pump will no longer turn on, been trying condition, but no such luck
So for starters you indentation is off - I am surprised the editor din’t complain :).
Conditions go inside triggers, i.e.:
- platform: esp32_touch
name: "Water Tank Full"
pin: GPIO27
id: tank
threshold: 300
on_,,,:
if:
condition:
# Same syntax for is_off
binary_sensor.is_on: tank
But I am not sure a condition is what you need.
So you want the pump to come on when low trigger, off when high triggered, but always turn off on tank full regardless of the state of the other sensors? Correct?
It may help to just write out the logic required, or flowchart it, so we can understand the conditions and the action required under those conditions.
Binary sensors you would use on_state and binary_sensor.is_off: tank
- platform: esp32_touch
name: "Water Tank Full"
pin: GPIO27
id: tank
threshold: 300
on_state:
then:
- binary_sensor.is_off: tank
when i try and add the lines like that i get a error for binary_sensor
try
- platform: esp32_touch
name: "Water Tank Full"
pin: GPIO27
id: tank
threshold: 300
on_state:
then:
- if:
condition:
binary_sensor.is_off: tank
then:
switch.turn_on: relay
int waterfilterhigh = 0;
int waterfilterlow = 0;
int cisternfull = 0;
int minimum = 200; // this is the minimum value of analog reading
int pump = HIGH;
void setup()
{
Serial.begin(9600); // setup serial
pinMode(12, OUTPUT);
pinMode(11, OUTPUT);
pinMode(2, OUTPUT);
}
void loop()
{
/*
This blinks an LED so you know it's working
*/
digitalWrite(13, HIGH);
delay (1000);
digitalWrite(13, LOW);
delay(1000);
/*
This section check the level of the water in the filters
*/
digitalWrite(11, HIGH);
waterfilterhigh = analogRead(0);
waterfilterlow = analogRead(1);
cisternfull = analogRead(2);
prefilterhigh = analogRead(3);
prefilterlow = analogRead(4);
digitalWrite(11, LOW);
Serial.write( "Water Filter high water level - ");
Serial.println(waterfilterhigh);
Serial.write( "Water Filter low water level - ");
Serial.println(waterfilterlow);
Serial.write( "Cistern full - ");
Serial.println(cisternfull);
Serial.write( "Minimum Number for Electrodes - ");
Serial.println(minimum);
Serial.write("Pump on/off? - ");
Serial.println(pump);
}
if (waterfilterlow < minimum) {
pump = HIGH;
}
if (waterfilterhigh > minimum) {
pump = LOW;
}
if (cisternfull > minimum) {
pump = LOW;
}
digitalWrite(12, pump);
}
here is the code i had wrote for Audrino if that helps any, this code is working
only problem im having now with the stuff you guys have helped with is that when the water tank is full, that tthe pump cant turn on no mater what untill it drops below the sensors,