from machine import *
from time import *

# --- Sensor setup ---
ldr = ADC(26)          # LDR connected to GP26 (ADC0)

# --- List to store readings ---
ldr_values = []        # start with empty list

TOTAL_SAMPLES = 10     # how many readings to take
INTERVAL_SEC = 2       # time gap between readings (seconds)

print("Taking", TOTAL_SAMPLES, "LDR readings...")

# --- Collect readings into the list ---
for i in range(TOTAL_SAMPLES):
    value = ldr.read_u16()      # read sensor value
    ldr_values.append(value)    # store in the list
    print("Reading", i + 1, "=", value)
    sleep(INTERVAL_SEC)

print("\nAll readings:", ldr_values)

# --- Analyse the readings using list functions ---
highest = max(ldr_values)
lowest  = min(ldr_values)
total   = sum(ldr_values)
average = total / len(ldr_values)

print("\nAnalysis of LDR readings:")
print("Maximum value :", highest)
print("Minimum value :", lowest)
print("Average value :", average)

# --- Sort the readings (low to high) using list.sort() ---
ldr_values.sort()
print("\nReadings sorted (low to high):")
print(ldr_values)