#L11b - afisare date achiztionate din sensori
# analogici prin intermediul convertorului A/D
# Cursorul potentiometrului este conectat la pin 31
#-------------------------------------------------- 
# LCD de tp Nokia 5110 conectat la SPI
# Utilizeaza  micropython-pcd8544_fb.py 
#-----------------------------------------------

import pcd8544_fb
from machine import Pin, SPI
from utime import sleep

spi=SPI(1)  # implicit foloseste sck-GP10, mosi-GP11
            # miso -GP8, baud=1900000,
spi.init(baudrate=1000000,polarity=0,phase=0)

cs = Pin(14, Pin.OUT)
dc = Pin(15,Pin.OUT)
rst= Pin(13,Pin.OUT)
back_light = Pin(9,Pin.OUT,value=1)
lcd=pcd8544_fb.PCD8544_FB(spi,cs,dc,rst)
led=Pin(25, Pin.OUT)

a_sensor=machine.ADC(26)   # cursor potentiometru la pin 31
#----------------------------------------------------
s=a_sensor.read_u16()      # lectura date 16 biti

lcd.fill(0)         # clear memorie display Nokia 5110
sleep(0.1)  
#lcd.clear()
lcd.text("SM Lab9",10,0,1)     # afisare linia 9, col. 0 
lcd.text(" ADC0 =",0,20,1)   # afisare col. 19
lcd.text(str(s),10,30,1)
lcd.text("mv",35,40,1)# afisare numar
lcd.clear()                        
lcd.show()                          # actualizare display

while 1:         # vizualizare activitate
    
	led.off()    # aprind LED
	sleep(0.5) 
	led.on()     # sting LED
   
	sleep(0.5)