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update to 1.0.7
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‎.gitignore‎

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Eduponics/__pycache__/*
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dist/*
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micropython_eduponics.egg-info/*
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.DS_Store

‎eduponics/__init__.py‎

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__version__ = "1.0.7"

‎eduponics/ads1x15.py‎

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# The MIT License (MIT)
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#
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# Copyright (c) 2016 Radomir Dopieralski (@deshipu),
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# 2017 Robert Hammelrath (@robert-hh),
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# 2020 STEMinds (@STEMinds)
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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import utime as time
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from eduponics import mcp23017
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_REGISTER_CONVERT = const(0x00)
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_REGISTER_CONFIG = const(0x01)
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_REGISTER_LOWTHRESH = const(0x02)
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_REGISTER_HITHRESH = const(0x03)
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_OS_SINGLE = const(0x8000) # Write: Set to start a single-conversion
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_OS_NOTBUSY = const(0x8000) # Read: Bit=1 when no conversion is in progress
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_MUX_DIFF_0_1 = const(0x0000) # Differential P = AIN0, N = AIN1 (default)
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_MUX_DIFF_0_3 = const(0x1000) # Differential P = AIN0, N = AIN3
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_MUX_DIFF_1_3 = const(0x2000) # Differential P = AIN1, N = AIN3
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_MUX_DIFF_2_3 = const(0x3000) # Differential P = AIN2, N = AIN3
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_MUX_SINGLE_0 = const(0x4000) # Single-ended AIN0
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_MUX_SINGLE_1 = const(0x5000) # Single-ended AIN1
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_MUX_SINGLE_2 = const(0x6000) # Single-ended AIN2
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_MUX_SINGLE_3 = const(0x7000) # Single-ended AIN3
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_PGA_6_144V = const(0x0000) # +/-6.144V range = Gain 2/3
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_PGA_4_096V = const(0x0200) # +/-4.096V range = Gain 1
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_PGA_2_048V = const(0x0400) # +/-2.048V range = Gain 2 (default)
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_PGA_1_024V = const(0x0600) # +/-1.024V range = Gain 4
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_PGA_0_512V = const(0x0800) # +/-0.512V range = Gain 8
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_PGA_0_256V = const(0x0A00) # +/-0.256V range = Gain 16
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_MODE_CONTIN = const(0x0000) # Continuous conversion mode
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_MODE_SINGLE = const(0x0100) # Power-down single-shot mode (default)
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_DR_128SPS = const(0x0000) # 128 /8 samples per second
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_DR_250SPS = const(0x0020) # 250 /16 samples per second
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_DR_490SPS = const(0x0040) # 490 /32 samples per second
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_DR_920SPS = const(0x0060) # 920 /64 samples per second
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_DR_1600SPS = const(0x0080) # 1600/128 samples per second (default)
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_DR_2400SPS = const(0x00A0) # 2400/250 samples per second
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_DR_3300SPS = const(0x00C0) # 3300/475 samples per second
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_DR_860SPS = const(0x00E0) # - /860 samples per Second
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_CMODE_TRAD = const(0x0000) # Traditional comparator with hysteresis (default)
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_CPOL_ACTVLOW = const(0x0000) # ALERT/RDY pin is low when active (default)
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_CLAT_NONLAT = const(0x0000) # Non-latching comparator (default)
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_CLAT_LATCH = const(0x0004) # Latching comparator
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_CQUE_1CONV = const(0x0000) # Assert ALERT/RDY after one conversions
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# Disable the comparator and put ALERT/RDY in high state (default)
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_CQUE_NONE = const(0x0003)
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_GAINS = (
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_PGA_6_144V, # 2/3x
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_PGA_4_096V, # 1x
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_PGA_2_048V, # 2x
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_PGA_1_024V, # 4x
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_PGA_0_512V, # 8x
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_PGA_0_256V # 16x
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)
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_GAINS_V = (
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6.144, # 2/3x
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4.096, # 1x
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2.048, # 2x
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1.024, # 4x
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0.512, # 8x
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0.256 # 16x
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)
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_CHANNELS = {
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(0, None): _MUX_SINGLE_0,
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(1, None): _MUX_SINGLE_1,
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(2, None): _MUX_SINGLE_2,
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(3, None): _MUX_SINGLE_3,
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(0, 1): _MUX_DIFF_0_1,
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(0, 3): _MUX_DIFF_0_3,
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(1, 3): _MUX_DIFF_1_3,
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(2, 3): _MUX_DIFF_2_3,
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}
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_RATES = (
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_DR_128SPS, # 128/8 samples per second
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_DR_250SPS, # 250/16 samples per second
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_DR_490SPS, # 490/32 samples per second
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_DR_920SPS, # 920/64 samples per second
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_DR_1600SPS, # 1600/128 samples per second (default)
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_DR_2400SPS, # 2400/250 samples per second
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_DR_3300SPS, # 3300/475 samples per second
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_DR_860SPS # - /860 samples per Second
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)
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class ADS1115:
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def __init__(self, i2c, address=0x48, gain=1, mcp_address=0x20):
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self.i2c = i2c
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self.address = address
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self.mcp_address = mcp_address
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self.gain = gain
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self.temp2 = bytearray(2)
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# define MCP for activating MOSFET pins
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self.mcp = mcp23017.MCP23017(i2c=self.i2c, address=mcp_address)
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# define all the pins for the mosfets
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self.mcp_pins_sheet = {
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0:8,
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1:9,
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2:10,
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3:11
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}
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def _write_register(self, register, value):
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self.temp2[0] = value >> 8
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self.temp2[1] = value & 0xff
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self.i2c.writeto_mem(self.address, register, self.temp2)
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def _read_register(self, register):
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self.i2c.readfrom_mem_into(self.address, register, self.temp2)
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return (self.temp2[0] << 8) | self.temp2[1]
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def raw_to_v(self, raw):
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v_p_b = _GAINS_V[self.gain] / 32767
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return raw * v_p_b
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def set_conv(self, rate=4, channel1=0, channel2=None):
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"""Set mode for read_rev"""
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self.mode = (_CQUE_NONE | _CLAT_NONLAT |
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_CPOL_ACTVLOW | _CMODE_TRAD | _RATES[rate] |
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_MODE_SINGLE | _OS_SINGLE | _GAINS[self.gain] |
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_CHANNELS[(channel1, channel2)])
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def read_raw(self, rate=4, channel1=0, channel2=None):
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"""Read voltage between a channel and GND.
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Time depends on conversion rate."""
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self._write_register(_REGISTER_CONFIG, (_CQUE_NONE | _CLAT_NONLAT |
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_CPOL_ACTVLOW | _CMODE_TRAD | _RATES[rate] |
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_MODE_SINGLE | _OS_SINGLE | _GAINS[self.gain] |
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_CHANNELS[(channel1, channel2)]))
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while not self._read_register(_REGISTER_CONFIG) & _OS_NOTBUSY:
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time.sleep_ms(1)
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res = self._read_register(_REGISTER_CONVERT)
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return res if res < 32768 else res - 65536
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def read_rev(self):
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"""Read voltage between a channel and GND. and then start
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the next conversion."""
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res = self._read_register(_REGISTER_CONVERT)
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self._write_register(_REGISTER_CONFIG, self.mode)
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return res if res < 32768 else res - 65536
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def alert_start(self, rate=4, channel1=0, channel2=None,
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threshold_high=0x4000, threshold_low=0, latched=False) :
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"""Start continuous measurement, set ALERT pin on threshold."""
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self._write_register(_REGISTER_LOWTHRESH, threshold_low)
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self._write_register(_REGISTER_HITHRESH, threshold_high)
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self._write_register(_REGISTER_CONFIG, _CQUE_1CONV |
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_CLAT_LATCH if latched else _CLAT_NONLAT |
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_CPOL_ACTVLOW | _CMODE_TRAD | _RATES[rate] |
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_MODE_CONTIN | _GAINS[self.gain] |
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_CHANNELS[(channel1, channel2)])
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def conversion_start(self, rate=4, channel1=0, channel2=None):
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"""Start continuous measurement, trigger on ALERT/RDY pin."""
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self._write_register(_REGISTER_LOWTHRESH, 0)
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self._write_register(_REGISTER_HITHRESH, 0x8000)
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self._write_register(_REGISTER_CONFIG, _CQUE_1CONV | _CLAT_NONLAT |
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_CPOL_ACTVLOW | _CMODE_TRAD | _RATES[rate] |
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_MODE_CONTIN | _GAINS[self.gain] |
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_CHANNELS[(channel1, channel2)])
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def alert_read(self):
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"""Get the last reading from the continuous measurement."""
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res = self._read_register(_REGISTER_CONVERT)
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return res if res < 32768 else res - 65536
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def read(self,pin):
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# activate the mosfet
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self.mcp.pin(self.mcp_pins_sheet[pin], mode=0, value=1)
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time.sleep(0.1)
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# read the data
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raw = self.read_raw(channel1=pin)
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voltage = self.raw_to_v(raw)
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# deactivate mosfet after use
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self.mcp.pin(self.mcp_pins_sheet[pin], mode=0, value=0)
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return {"raw":raw,"voltage":voltage}

‎eduponics/at24c02.py‎

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"""
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MicroPython TinyRTC I2C Module, DS1307 RTC + AT24C32N EEPROM
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https://github.com/mcauser/micropython-tinyrtc
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MIT License
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Copyright (c) 2018 Mike Causer
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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"""
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# AT24C32A, 32K (32768 kbit / 4 KB), 128 pages, 32 bytes per page, i2c addr 0x50
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import machine
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import time
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class AT24C32N(object):
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"""Driver for the AT24C32N 32K EEPROM."""
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def __init__(self, i2c, i2c_addr=0x50, pages=128, bpp=32):
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self.i2c = i2c
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self.i2c_addr = i2c_addr
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self.pages = pages
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self.bpp = bpp # bytes per page
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def capacity(self):
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"""Storage capacity in bytes"""
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return self.pages * self.bpp
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def read(self, addr, nbytes):
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"""Read one or more bytes from the EEPROM starting from a specific address"""
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return self.i2c.readfrom_mem(self.i2c_addr, addr, nbytes, addrsize=16)
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def write(self, addr, buf):
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"""Write one or more bytes to the EEPROM starting from a specific address"""
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offset = addr % self.bpp
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partial = 0
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# partial page write
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if offset > 0:
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partial = self.bpp - offset
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self.i2c.writeto_mem(self.i2c_addr, addr, buf[0:partial], addrsize=16)
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time.sleep_ms(5)
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addr += partial
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# full page write
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for i in range(partial, len(buf), self.bpp):
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self.i2c.writeto_mem(self.i2c_addr, addr+i-partial, buf[i:i+self.bpp], addrsize=16)
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time.sleep_ms(5)

‎eduponics/bh1750.py‎

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"""
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MicroPython BH1750 light sensor module
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https://github.com/STEMinds/eduponics-mini
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MIT License
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Copyright (c) 2020 STEMinds
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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"""
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import machine
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import time
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class BH1750():
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def __init__(self):
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# Define some constants from the datasheet
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self.DEVICE = 0x5c # Default device I2C address
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self.POWER_DOWN = 0x00 # No active state
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self.POWER_ON = 0x01 # Power on
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self.RESET = 0x07 # Reset data register value
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# Start measurement at 4lx resolution. Time typically 16ms.
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self.CONTINUOUS_LOW_RES_MODE = 0x13
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# Start measurement at 1lx resolution. Time typically 120ms
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self.CONTINUOUS_HIGH_RES_MODE_1 = 0x10
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# Start measurement at 0.5lx resolution. Time typically 120ms
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self.CONTINUOUS_HIGH_RES_MODE_2 = 0x11
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# Start measurement at 1lx resolution. Time typically 120ms
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# Device is automatically set to Power Down after measurement.
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self.ONE_TIME_HIGH_RES_MODE_1 = 0x20
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# Start measurement at 0.5lx resolution. Time typically 120ms
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# Device is automatically set to Power Down after measurement.
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self.ONE_TIME_HIGH_RES_MODE_2 = 0x21
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# Start measurement at 1lx resolution. Time typically 120ms
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# Device is automatically set to Power Down after measurement.
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self.ONE_TIME_LOW_RES_MODE = 0x23
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# setup I2C
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self.i2c = machine.I2C(scl=machine.Pin(15), sda=machine.Pin(4))
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def convertToNumber(self, data):
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# Simple function to convert 2 bytes of data
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# into a decimal number
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return ((data[1] + (256 * data[0])) / 1.2)
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def readLight(self):
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data = self.i2c.readfrom_mem(self.DEVICE,self.ONE_TIME_HIGH_RES_MODE_1,2)
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return self.convertToNumber(data)

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