Enviro+ ADS1015 error ADC pin reading

@kflmiami420 wrote:

Hello I am trying to read the ADC pin on the Enviro + board

Right now the all-in-one-no-pm-2.py is running fine with added modes for temp and press conversion.

I wanted to add a new mode to display data from the ADC pin , I read that it is a ADC1015 on 0x49 address.

I installed pimoroni git ADC1015 library https://github.com/pimoroni/ads1015-python since it the same chip.

But when I try to run the example read-all.py it gives me an error

pi@raspberrypize6:~/ads1015-python/examples ls read-all.py pi@raspberrypize6:~/ads1015-python/examples python read-all.py
read-all.py - read all three inputs of the ADC

Press Ctrl+C to exit!

Traceback (most recent call last):
File “read-all.py”, line 13, in
ads1015.set_mode(‘single’)
File “build/bdist.linux-armv6l/egg/ads1015/init.py”, line 166, in set_mode
File “build/bdist.linux-armv6l/egg/i2cdevice/init.py”, line 215, in set
File “build/bdist.linux-armv6l/egg/i2cdevice/init.py”, line 183, in read_register
File “build/bdist.linux-armv6l/egg/i2cdevice/init.py”, line 283, in _i2c_read
IOError: [Errno 121] Remote I/O error
pi@raspberrypize6:~/ads1015-python/examples $

Blockquote

this is the code I am running

#!/usr/bin/env python
import time
from ads1015 import ADS1015

CHANNELS = [‘in0/ref’, ‘in1/ref’, ‘in2/ref’]

print("""read-all.py - read all three inputs of the ADC

Press Ctrl+C to exit!
“”")

ads1015 = ADS1015()
ads1015.set_mode(‘single’)
ads1015.set_programmable_gain(2.048)
ads1015.set_sample_rate(1600)

reference = ads1015.get_reference_voltage()

print(“Reference voltage: {:6.3f}v \n”.format(reference))

try:
while True:
for channel in CHANNELS:
value = ads1015.get_compensated_voltage(channel=channel, reference_voltage=reference)
print("{}: {:6.3f}v".format(channel, value))

    print("")
    time.sleep(0.5)

except KeyboardInterrupt:
pass

Any ideas how to fix it . The signal I am inputing into the ADC pin is from .02volts to 2.0 volts from an adafruit/1733 anemometer power from an external 12volt powersupply blue wire to pin ADC brown wire to Positive powersupply Black to negative power supply.

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