from machine import Pin, I2C, ADC

# Pin 34: sensor soil moisture
adc = ADC(Pin(34))
adc.atten(ADC.ATTN_11DB)  # 0-3.3V

def convert_to_moisture(value):
    return round(value/4, 2)


while True:
    value = adc.read()
    soil = convert_to_moisture(value)
    data = {"moisture": soil}
    print("Sending:", data)