Micropython compatible

README.md

@@ -44,11 +44,13 @@ void calibration(float voltage, float temperature, char* cmd);
 
 ## Compatibility
 
-MCU                | Work Well | Work Wrong | Untested  | Remarks
------------------- | :----------: | :----------: | :---------: | -----
-Arduino Uno  |      √       |             |            | 
-Leonardo  |      √       |             |            | 
-Meag2560 |      √       |             |            | 
+MCU                  | Work Well    | Work Wrong   | Untested     | Remarks
+-------------------- | :----------: | :----------: | :----------: | ------------
+Arduino Uno          |      √       |              |              | 
+Leonardo             |      √       |              |              | 
+Meag2560             |      √       |              |              |
+Raspberry Pi Pico WH |      √       |              |              | Micropython
+ESP32                |      √       |              |      √       | Micropython
 
 ## History
 

RaspberryPi/Micropython/example/ecdata.py

@@ -0,0 +1,2 @@
+kvalueLow=1.0
+kvalueHigh=1.0

RaspberryPi/Micropython/example/main.py

@@ -0,0 +1,16 @@
+from machine import Pin, ADC
+import utime
+from uDFRobot_EC import DFRobot_EC
+
+ec = DFRobot_EC()
+ec.begin()
+
+adc = ADC(Pin(28, Pin.IN)) # Read Analog Value from a ADC Pin GPIO28
+
+while True:
+    temperature = 25 # Need to read the water temperature in Celsius
+    adc_value_16bit = adc.read_u16()
+    adc_value_12bit = adc_value_16bit >> 4  # Convert to 12-bit by shifting right 4 bits
+    EC = ec.readEC(adc_value_12bit,temperature)
+    print("Temperature:%.1f EC:%.2f ms/cm"%(temperature,EC))
+    utime.sleep(0.5)

RaspberryPi/Micropython/example/uDFRobot_EC_Calibration.py

@@ -0,0 +1,19 @@
+from machine import Pin, ADC
+import utime
+from uDFRobot_EC import DFRobot_EC
+
+ec = DFRobot_EC()
+ec.begin()
+
+adc = ADC(Pin(28, Pin.IN))  # Read Analog Value from a ADC Pin GPIO28
+
+while True:
+    temperature = 25 # Specify the conductivity solution temperature in Celsius
+
+    adc_value_16bit = adc.read_u16()
+    adc_value_12bit = adc_value_16bit >> 4 # Convert to 12-bit by shifting right 4 bits
+
+    print("12-bit ADC: ", adc_value_12bit)
+
+    #Calibrate the calibration data
+    ec.calibration(adc_value_12bit,temperature)

RaspberryPi/Micropython/example/uDFRobot_EC_Reset.py

@@ -0,0 +1,4 @@
+from uDFRobot_EC import DFRobot_EC
+
+ec = DFRobot_EC()
+ec.reset()

RaspberryPi/Micropython/uDFRobot_EC.py

@@ -0,0 +1,88 @@
+import machine
+
+_kvalue        = 1.0
+_kvalueLow     = 1.0
+_kvalueHigh    = 1.0
+
+class DFRobot_EC():
+    def begin(self):
+        global _kvalueLow
+        global _kvalueHigh
+        try:
+            with open('ecdata.py','r') as f:
+                kvalueLowLine  = f.readline()
+                kvalueLowLine  = kvalueLowLine.strip('kvalueLow=')
+                _kvalueLow     = float(kvalueLowLine)
+                kvalueHighLine = f.readline()
+                kvalueHighLine = kvalueHighLine.strip('kvalueHigh=')
+                _kvalueHigh    = float(kvalueHighLine)
+        except:
+            print("ecdata.py ERROR ! Reset to default parameters")
+            self.reset()
+    def readEC(self,voltage,temperature):
+        global _kvalueLow
+        global _kvalueHigh
+        global _kvalue
+        rawEC = 1000*voltage/820.0/200.0
+        valueTemp = rawEC * _kvalue
+        if(valueTemp > 2.5):
+            _kvalue = _kvalueHigh
+        elif(valueTemp < 2.0):
+            _kvalue = _kvalueLow
+        value = rawEC * _kvalue
+        value = value / (1.0+0.0185*(temperature-25.0))
+        return value
+    def calibration(self,voltage,temperature):
+        rawEC = 1000*voltage/820.0/200.0
+        print(rawEC, voltage, temperature)
+        if (rawEC>0.9 and rawEC<1.9):
+            compECsolution = 1.413*(1.0+0.0185*(temperature-25.0))
+            KValueTemp = 820.0*200.0*compECsolution/1000.0/voltage
+            round(KValueTemp,2)
+            print(">>>Buffer Solution:1.413us/cm")
+            f=open('ecdata.py','r')
+            flist=f.readlines()
+            flist[0]='kvalueLow='+ str(KValueTemp) + '\n'
+            f=open('ecdata.py','w')
+            f.write(''.join(flist))
+            f.close()
+            print(">>>EC:1.413us/cm Calibration completed,Please enter Ctrl+C exit calibration in 5 seconds")
+            machine.reset()
+        elif (rawEC>9 and rawEC<16.8):
+            compECsolution = 12.88*(1.0+0.0185*(temperature-25.0))
+            KValueTemp = 820.0*200.0*compECsolution/1000.0/voltage
+            print(">>>Buffer Solution:12.88ms/cm")
+            f=open('ecdata.py','r')
+            flist=f.readlines()
+            flist[1]='kvalueHigh='+ str(KValueTemp) + '\n'
+            f=open('ecdata.py','w')
+            f.write(''.join(flist))
+            f.close()
+            print(">>>EC:12.88ms/cm Calibration completed,Please enter Ctrl+C exit calibration in 5 seconds")
+            machine.reset()
+        else:
+            print(">>>Buffer Solution Error Try Again<<<")
+            machine.reset()
+    def reset(self):
+        _kvalueLow              = 1.0;
+        _kvalueHigh             = 1.0;
+        try:
+            f=open('ecdata.py','r')
+            flist=f.readlines()
+            flist[0]='kvalueLow=' + str(_kvalueLow)  + '\n'
+            flist[1]='kvalueHigh='+ str(_kvalueHigh) + '\n'
+            f=open('ecdata.py','w')
+            f.write(flist)
+            f.close()
+            print(">>>Reset to default parameters<<<")
+            machine.reset()
+        except:
+            f=open('ecdata.py','r')
+            flist=f.readlines()
+            flist   ='kvalueLow=' + str(_kvalueLow)  + '\n'
+            flist  +='kvalueHigh='+ str(_kvalueHigh) + '\n'
+            f=open('ecdata.py','w')
+            f.write(''.join(flist))
+            f.close()
+            print(">>>Reset to default parameters<<<")
+            machine.reset()