#L13b - Control viteza reglabila BLCD
# Reglarea turatiei se face cu un potentiometru
# conectat prin ADC 11115 canal A0
#Low=0.82 ms / dutycycle(4)
# ESC este conectat la pin 12
# Activare power 26
import lcddriver           # I2C LCD HD44780
import RPi.GPIO as GPIO
import time

lcd=lcddriver.lcd()
lcd.lcd_clear()

GPIO.setmode(GPIO.BOARD)   # numerotare conector
GPIO.setup(12,GPIO.OUT)    # comanda bldc
pwm=GPIO.PWM(12,50)        # T= 20mS=100%
pwm.start(10)              # viteza max.

pwm.ChangeDutyCycle(10)    # pwm max
time.sleep(5)              # dupa 2 sec. conectez alimentare baterie BLDC
#........................  # aici poate fi introdus intrerupatoar programabil
pwm.ChangeDutyCycle(4)     # viteza min.
time.sleep(1)
# se pot furniza valori turatie motor
v=7.5
while 1:
	pwm.ChangeDutyCycle(v) # viteza programabila
	lcd.lcd_clear()
	lcd.lcd_display_string(str(v),1)
        lcd.lcd_display_string("SM Lab13 - BLDC",2)
 	time.sleep(2)

# La relansari ale programului,fara
# deconectarea alimentarii bateriei, merge OK.