from smbus2 import SMBus
import time

# 定数
ADRS2040_ADDR=0x41
ADRS2040_CMD_INVALID      = 0
ADRS2040_CMD_ADC_START    = 1
ADRS2040_CMD_ADC_STOP     = 2
ADRS2040_CMD_SET_RATE     = 3
ADRS2040_CMD_GET_COUNT    = 4
ADRS2040_CMD_GET_VALUE    = 5

with SMBus(1) as i2c:
    # 1000Hzにセット
    i2c.write_word_data(ADRS2040_ADDR, ADRS2040_CMD_SET_RATE, 100)
    i2c.write_byte(ADRS2040_ADDR, ADRS2040_CMD_ADC_START)
    while True:
        counter = 0
        counter = i2c.read_word_data(ADRS2040_ADDR,ADRS2040_CMD_GET_COUNT )
        print(counter)
        for i in range(counter):
            value = i2c.read_word_data(ADRS2040_ADDR,ADRS2040_CMD_GET_VALUE)
            print( value )