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add support for esp32 and the whole house energy meter kit #1

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26 changes: 20 additions & 6 deletions src/atm90e32_u.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,26 +4,40 @@
import time
import struct
from atm90e32_registers import *
import sys

SPI_WRITE = 0
SPI_READ = 1

class ATM90e32:
##############################################################################

def __init__(self, linefreq, pgagain, ugain, igainA, igainB, igainC):
def __init__(self, linefreq, pgagain, ugain, igainA, igainB, igainC, chipType='esp8266'):
self._linefreq = linefreq
self._pgagain = pgagain
self._ugain = ugain
self._igainA = igainA
self._igainB = igainB
self._igainC = igainC

# Chip select pin
self.cs = Pin(15, Pin.OUT)
self.cs.on()
# Doc on esp8266 SPI hw init: http://bit.ly/2ZhqeRB
self.spi = SPI(1, baudrate=200000, polarity=1, phase=1)
if chipType == 'esp8266':
# Chip select pin
self.cs = Pin(15, Pin.OUT)
self.cs.on()
# Doc on esp8266 SPI hw init: http://bit.ly/2ZhqeRB
self.spi = SPI(1, baudrate=200000, polarity=1, phase=1)

# this is setup to work with the energy meter kit http://bit.ly/2kWjpq8
elif chipType == 'esp32':
self.cs = Pin(5, Pin.OUT)
self.cs.on()

# Doc on esp32 SPI hw init: http://bit.ly/2kVLihW
self.spi = SPI(2, baudrate=200000, polarity=1, phase=1, bits=8, firstbit=0,
sck=Pin(18), mosi=Pin(23), miso=Pin(19))
else:
print('chip type not supported!')
sys.exit(0)

self._init_config()

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