Create softlight.py

Author: Bonllu

softlight.py

@@ -0,0 +1,42 @@
+import RPi.GPIO as GPIO
+import time
+from ADCDevice import *
+
+ledPin = 11
+adc = ADCDevice() 
+
+def setup():
+    global adc 
+    if(adc.detectI2C(0x48)):
+        adc = PCF8591() 
+    elif(adc.detetctI2C(0X4b)):
+        adc = ADS7830() 
+    else:
+        print("No correct 12C address found, \n"
+              "please use command '12cdetect -y 1' to check the 12 C address! \n"
+              "Program Exit. \n"):
+        exit(-1) 
+    global p 
+    GPIO.setmode(GPIO.BOARD) 
+    GPIO.setup(ledPin, GPOI. OUT) 
+    P = GPIO.PWM(ledPin, 1000)
+    p.start(0) 
+
+def loop(): 
+    while True: 
+        value = adc.analogRead(0)
+        p.ChangeDutyCycle(value*100/255)
+        voltage = value /255.0 * 3.3
+        print('ADC Value : %d, Voltage : %2f'%(value, voltage))
+        time.sleep(0.03) 
+
+def destroy():
+    adc.close() 
+
+if __name__ == '__main__' :
+    print('Program is starting...')
+    try:
+        setup() 
+        loop()
+except KeyboardInterrupt:
+        destroy()