# AD-CONVERTER test -2024.1.18-

import spidev
import time
import sys

# spi initialize
spi = spidev.SpiDev()
spi.open(0, 0)
spi.max_speed_hz = 1000000

def main():
    while True:
        # power voltage
        resp = spi.xfer2([0x68, 0x00])
        dt = ((resp[0] << 8) + resp[1]) & 0xFFF
        v = dt / 1023 * 15.0
        print("BATTERY voltage: " + str("{:.2f}".format(v)))
        
        # moisture sensor value
        resp2 = spi.xfer2([0x78, 0x00])
        dt2 = ((resp2[0] << 8) + resp2[1]) & 0x3FF
        print("X: " + str("{:.2f}".format(dt2)))
            
        time.sleep(5)

if __name__ == '__main__':
    try:
        main()

    except KeyboardInterrupt:
        spi.close()
        sys.exit()