Update and rename LCD_Keypad_Shield_with_PH_Meter.ino to My Sensor_LCD_Keypad_Shield_with_PH_Meter.ino
Ph meter with data send to Mysensor LCD to calibrating and value is stored in EEPROM Peristatic pump to Ph Down
This commit is contained in:
vjclearscreen
+42
-35
@@ -28,12 +28,12 @@
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Version :
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v0.1 5/3/2015 First Version
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v0.2 3/9/2015 Vesrion by clemsail@free.fr with calibrating to EEPROM and data send with mySensor
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**************************************************************************************/
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/* PIN NRF Mysensor on a arduino Mega :
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modifier fichier libriaire myconfig.h
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/**************************************************************************************
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modif file : myconfig.h
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/**********************************
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* NRF24L01 Driver Defaults
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***********************************
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@@ -42,35 +42,40 @@ modifier fichier libriaire myconfig.h
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#define RF24_PA_LEVEL RF24_PA_MAX
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#define RF24_PA_LEVEL_GW RF24_PA_LOW
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48 CE orange
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**************************************************************************************
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* PIN NRF Mysensor on a arduino Mega : *
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**************************************************************************************
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48 CE orange
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49 CSN/CS jaune
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52 SCK vert
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51 MOSI bleu
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50 MISO violet
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2 IRQ gris
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2 IRQ gris
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**************************************************************************************/
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*/
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#include <LiquidCrystal.h>
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#include <OneWire.h>
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#include <DallasTemperature.h>
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#include <Wire.h>
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#include <EEPROM.h>
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// librairie pour My Sensor
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// My Sensor
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#include <SPI.h>
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#include <MySensor.h>
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// configuration my sensor
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// my sensor config
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MySensor gw;
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MyMessage msgPH(0, V_VAR1);
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MyMessage msgTempROOM(1, V_TEMP);
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MyMessage msgTempWATER(2, V_TEMP);
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double lastPhValue = 7;
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// lcd config
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LiquidCrystal lcd(8, 9, 4, 5, 6, 7); // select the pins used on the LCD panel
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#define ONE_WIRE_BUS 3 // DS18B20 connect to Pin 2
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// temp config
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OneWire oneWire(ONE_WIRE_BUS);
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DallasTemperature sensors(&oneWire);
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@@ -86,6 +91,8 @@ int adc_key_prev = -1;
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int CurrentMode = 0; // 0 = Normal Display , 1 = Debug1 , 2 = Debug2
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int CalSelect = 0; // 0 = PH4 Calibration Select , 1 = PH7 Calibration Select
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// value for temp and Ph
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const int NumReadings = 10; // number of reading for LM35
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int Index = 0; // index
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int TempReadings[NumReadings]; // array for store LM35 readings
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@@ -99,20 +106,13 @@ int PhTotal = 0; // PH running total
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int PhAverage = 0; // PH average reading
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// the current address in the EEPROM (i.e. which byte
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// we're going to write to next)
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// the current address to stock calibrating value in the EEPROM
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int addrph4 = 40;
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int addrph7 = 70;
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double Ph7Buffer = 7.00; // For PH7 buffer solution's PH value , 7 or 6.86
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// value of calibrated Ph
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double Ph7Buffer = 7.00; // For PH7 buffer solution's PH value , 7 or 6.86
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double Ph4Buffer = 4.01; // For PH4 buffer solution's PH value , 4 or 4.01
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//double Ph7Reading = 528; // PH7 Buffer Solution Reading.
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//double Ph4Reading = 655; // PH4 Buffer Solution Reading.
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//double Ph7Reading = 628; // PH7 Buffer Solution Reading.
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//double Ph4Reading = 732;
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//double Ph7Reading = EEPROM.read(addrph4); // PH7 Buffer Solution Reading.
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//double Ph4Reading = EEPROM.read(addrph7);
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double Ph4Reading = EEreadFloat(addrph4);
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double Ph7Reading = EEreadFloat(addrph7);
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int calibrate = 0;
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@@ -120,6 +120,7 @@ int calibrate = 0;
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double PhRatio = 0; // PH Step
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double PhValue = 0; // Ph Value in Human Reading Format after calculation
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// button lcd
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#define btnRIGHT 0
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#define btnUP 1
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#define btnDOWN 2
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@@ -133,11 +134,7 @@ int read_LCD_buttons() { // read the buttons
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int k = (analogRead(0) - adc_key_in); // gives the button a slight range to allow for a little contact resistance noise
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if (5 < abs(k)) return btnNONE; // double checks the keypress. If the two readings are not equal +/-k value after debounce delay, it tries again.
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//lcd.print(adc_key_in); // read button value and print for calibrate
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// my buttons when read are centered at these valies: 0, 144, 329, 504, 741
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// we add approx 50 to those values and check to see if we are close
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// We make this the 1st option for speed reasons since it will be the most likely result
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if (adc_key_in > 1000) return btnNONE;
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if (adc_key_in < 50) return btnRIGHT;
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if (adc_key_in < 150) return btnUP;
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@@ -147,9 +144,12 @@ int read_LCD_buttons() { // read the buttons
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return btnNONE; // when all others fail, return this.
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}
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// reading routin
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int reading() {
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// read ph calibrated value in EEPROM
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double Ph4Reading = EEreadFloat(addrph4);
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double Ph7Reading = EEreadFloat(addrph7);
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// Reading LM35 and PH Data
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// Samplin LM35 and PH Value
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TempTotal = TempTotal - TempReadings[Index]; // subtract the last reading:
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@@ -167,27 +167,34 @@ int reading() {
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}
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TempValue = (double) TempAverage / 3.4 * (5 / 10.24); // LM35 connect to CA3140 for amplify 3 time
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PhValue = (Ph7Reading - PhAverage) / PhRatio + Ph7Buffer; // Calculate PH
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/**************************************************************************************
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to turn on/off a Ph down pump to have a 6.5 Ph
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for the moment
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i've not implemented to have two perstatic pump (Ph down/ Ph Up)
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and can chose a cosigne of Ph value and store it to EEPROM
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use a mosfet (TIP12*) connected with a 1k restistor to control 12V of peristatic pump
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or for better security to arduino use a optocoupler
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**************************************************************************************/
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if (PhValue > 6.5) {
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digitalWrite(53, HIGH); // turn pompe on
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}
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if (PhValue < 6) {
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digitalWrite(53, LOW); // turn pompe off
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}
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/**************************************************************************************/
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if (PhValue > lastPhValue + 0.3) {
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//Serial.println(PhValue);
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double PHsend = PhValue;
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gw.send(msgPH.set(PHsend, 1)); // Send the inverse to gw as tripped should be when no water in soil
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gw.send(msgPH.set(PHsend, 1)); // Send Ph value to mysensor
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lastPhValue = PhValue;
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}
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if (PhValue < lastPhValue - 0.3) {
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//Serial.println(PhValue);
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double PHsend = PhValue;
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gw.send(msgPH.set(PHsend, 1)); // Send the inverse to gw as tripped should be when no water in soil
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lastPhValue = PhValue;
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gw.send(msgPH.set(PHsend, 1)); // Send Ph value
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lastPhValue = PhValue; // Save new ph for next compare
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}
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@@ -216,7 +223,7 @@ int reading() {
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void setup() {
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// pompe PH down
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// TIP122 with peristatic pump to PH down
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pinMode(53, OUTPUT);
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// start mysensor
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gw.begin();
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@@ -225,11 +232,11 @@ void setup() {
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gw.sendSketchInfo("PH Temp Sensor", "1.0");
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delay(200);
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// Register all sensors to gw (they will be created as child devices)
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gw.present(0, S_TEMP);
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gw.present(0, S_TEMP); // ph
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delay(200);
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gw.present(1, S_TEMP);
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gw.present(1, S_TEMP); // room temp
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delay(200);
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gw.present(2, S_TEMP);
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gw.present(2, S_TEMP); // water temp
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delay(200);
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lcd.begin(16, 2); // start LCD library
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