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Software/Python/grove_i2c_adc/README.md

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+Grove I2C ADC
+==============
+Raspberry Pi Python i2c library for Grove I2C ADC (http://www.seeedstudio.com/depot/Grove-I2C-ADC-p-1580.html)
+
+Grove - I2C ADC is a 12-bit precision ADC module based on ADC121C021. It helps you increase the accuracy of value collected from analog sensor by providing a constant reference voltage. Because its address is changeable, you can use up to 9 I2C ADC at the same time at most

Software/Python/grove_i2c_adc/grove_i2c_adc.py

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+#!/usr/bin/env python
+#
+# GrovePi Library for using the Grove - I2C ADC(http://www.seeedstudio.com/depot/Grove-I2C-ADC-p-1580.html)
+#
+# The GrovePi connects the Raspberry Pi and Grove sensors.  You can learn more about GrovePi here:  http://www.dexterindustries.com/GrovePi
+#
+# Have a question about this library?  Ask on the forums here:  http://forum.dexterindustries.com/c/grovepi
+#
+
+# Released under the MIT license (http://choosealicense.com/licenses/mit/).
+# For more information see https://github.com/DexterInd/GrovePi/blob/master/LICENSE
+
+import time,sys
+import RPi.GPIO as GPIO
+import smbus
+
+# use the bus that matches your raspi version
+rev = GPIO.RPI_REVISION
+if rev == 2 or rev == 3:
+    bus = smbus.SMBus(1)
+else:
+    bus = smbus.SMBus(0)
+
+class ADC:
+	address = None
+
+	REG_ADDR_RESULT = 0x00
+	REG_ADDR_ALERT  = 0x01
+	REG_ADDR_CONFIG = 0x02
+	REG_ADDR_LIMITL = 0x03
+	REG_ADDR_LIMITH = 0x04
+	REG_ADDR_HYST   = 0x05
+	REG_ADDR_CONVL  = 0x06
+	REG_ADDR_CONVH  = 0x07
+
+	def __init__(self,address=0x55):
+		self.address=address
+		bus.write_byte_data(self.address, self.REG_ADDR_CONFIG,0x20)
+
+	def adc_read(self):
+		data=bus.read_i2c_block_data(self.address, self.REG_ADDR_RESULT, 2)
+		raw_val=(data[0]&0x0f)<<8 | data[1]
+		return raw_val
+
+if __name__ == "__main__":
+	adc= ADC()
+	while True:
+		print(adc.adc_read())
+		time.sleep(.5)

Software/Python/grove_i2c_adc/i2c_adc_example.py

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+#!/usr/bin/env python
+#
+# GrovePi Example for using the Grove - I2C ADC(http://www.seeedstudio.com/depot/Grove-I2C-ADC-p-1580.html)
+#
+# The GrovePi connects the Raspberry Pi and Grove sensors.  You can learn more about GrovePi here:  http://www.dexterindustries.com/GrovePi
+#
+# Have a question about this example?  Ask on the forums here:  http://forum.dexterindustries.com/c/grovepi
+#
+'''
+## License
+
+The MIT License (MIT)
+
+GrovePi for the Raspberry Pi: an open source platform for connecting Grove Sensors to the Raspberry Pi.
+Copyright (C) 2017  Dexter Industries
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+'''
+
+import grove_i2c_adc
+import time
+
+# You can initialize with a different address too: grove_i2c_adc.ADC(address=0x56)
+adc= grove_i2c_adc.ADC()
+
+while True:
+	#Print the 12 bit value from the I2C ADC
+	print(adc.adc_read())
+	time.sleep(.5)