Hello.
I need help with the solution of my product.
Unfortunately I'm still a beginner and I don't know anymore. I wanted to create a weighing system with dosing. The principle is that I enter a value of 250 on the keyboard and the peristalist pump starts to feed the material.
When the value is reached, the pump stops and the second pump starts to dispense.
This will dispense a material that has also been entered for example 100. So the weight will know that it has to stop at 300.
I don't know how to write the condition. When the value reaches 200 stop and start the second pump that stops 100 + the first value.
I use arduino uno, the weight sensor is hx711, the L9110S provides motor control.
I attach the written code for me - #include <LiquidCrystal_I2C.h>#include <Wire.h>#include <Keypad.h>#include - Pastebin.com
Unfortunately I got stuck and I don't know how to continue ... Thank you very much for your help.
And sorry for my english..
#include <LiquidCrystal_I2C.h>
#include <Wire.h>
#include <Keypad.h>
#include <HX711_ADC.h>
// ---------------------------------------------------------------------------------------------------------
HX711_ADC LoadCell(10, 11); // inicializace vahy
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // inicializace display
const byte numRows = 4;
const byte numCols = 4;
char keymap[numRows][numCols]=
{
{'1', '2', '3', 'A'},
{'4', '5', '6', 'B'},
{'7', '8', '9', 'C'},
{'*', '0', '#', 'D'}
};
byte rowPins[numRows] = {9,8,7,6}; //Rows 0 to 3
byte colPins[numCols]= {5,4,3,10}; //Columns 0 to 3
Keypad keypad = Keypad( makeKeymap(keymap), rowPins, colPins, numRows, numCols ); // inicializace keypad
// ---------------------------------------------------------------------------------------------------------
void setup() {
LoadCell.begin(); // spusťte připojení k HX711
LoadCell.start(2000); // Váha dostane 2000ms na stabilizování
LoadCell.setCalFactor(1074.0); // kalibrační faktor pro snímač zatížení
lcd.begin(16, 2); // Připojení k LCD modulu
lcd.backlight(); // Připojení k LCD modulu
}
void loop() {
LoadCell.update(); // načte data ze snímače vahy
float senzor_vaha = LoadCell.getData(); // získat výstupní hodnotu
lcd.setCursor(0, 0); // nastavte kurzor na první řádek
lcd.print("Vaha[g]:"); // Přenese údaj na LCD
lcd.print(senzor_vaha); // Přenese načtenou hodnotu vedle textu
}
