Updated naming conventions, remerged test into source file

This commit is contained in:
Connor
2019-06-28 20:48:45 +10:00
parent db9d78bcf8
commit 6415737639
4 changed files with 12 additions and 25 deletions

View File

@@ -1,4 +1,4 @@
class Crc8:
class CRC8:
def __init__(s):
s.crc = 255
@@ -18,6 +18,6 @@ class Crc8:
s.crc = crc & 0xFF
return s.crc
# print(Crc8().hash([1,144]))
#print(hex(Crc8().hash([0xBE, 0xEF])))
#print(CRC8().hash([1,144]))
#print(hex(CRC8().hash([0xBE, 0xEF])))
#[1, 144, 76, 0, 6, 39]

View File

@@ -3,10 +3,8 @@ from smbus2 import SMBusWrapper, SMBus, i2c_msg
from collections import namedtuple
from functools import partial
from time import sleep, asctime, time
import json
from copy import copy
import os.path
from .crc import Crc8
from .crc import CRC8
DEVICE_BUS = 1
@@ -37,11 +35,11 @@ class SGP30():
self._last_save_time = time()
self._baseline = baseline
SGP30Answer = namedtuple("SGP30Answer", ["data", "raw", "crc_ok"])
SGP30Packet = namedtuple("SGP30Packet", ["data", "raw", "crc_ok"])
def _raw_validate_crc(s, r):
a = list(zip(r[0::3], r[1::3]))
crc = r[2::3] == [Crc8().hash(i) for i in a]
crc = r[2::3] == [CRC8().hash(i) for i in a]
return(crc, a)
def read_write(self, cmd):
@@ -56,7 +54,7 @@ class SGP30():
r = list(read)
crc_ok, a = self._raw_validate_crc(r)
answer = [i << 8 | j for i, j in a]
return self.SGP30Answer(answer, r, crc_ok)
return self.SGP30Packet(answer, r, crc_ok)
def dump_baseline(self):
baseline = self.read_write(_cmds.GET_BASELINE)
@@ -111,7 +109,10 @@ def main():
print(sgp.read_features())
print(sgp.read_serial())
sgp.init_sgp()
print(sgp.read_measurements())
for i in range(300):
print(sgp.read_measurements())
time.sleep(0.1)
sgp.store_baseline()
bus.close()