How to use I2C-1 port, script unable to find device

[bakami 0]

Hey, i'm trying to follow this Guide for a 3rd party module i try to use, which was made for a raspberry pi, but when i try to execute the second script, this error message appears:

$ sudo python ADS1115_ReadVoltage.py
Traceback (most recent call last):
  File "ADS1115_ReadVoltage.py", line 19, in <module>
    adc0 = ads1115.readVoltage(0)
  File "../DFRobot_ADS1115.py", line 142, in readVoltage
    self.setSingle()
  File "../DFRobot_ADS1115.py", line 110, in setSingle
    bus.write_i2c_block_data(addr_G, ADS1115_REG_POINTER_CONFIG, CONFIG_REG)
IOError: [Errno 6] No such device or address

I used this program to activate my I2C-1 port: https://tinkerboarding.co.uk/forum/thread-400.html ,i couldn't find another way.

"$ sudo i2cdetect -y 1" returns that it found a device on 0x49, as expected, so it should be activated.

The main script seems to use this code to get the bus:

import smbus
import time

# Get I2C bus
bus = smbus.SMBus(1)

# I2C address of the device
ADS1115_IIC_ADDRESS0                            = 0x48
ADS1115_IIC_ADDRESS1                            = 0x49

I attached the whole module folder, the scripts are under /DFRobot_ADS1115/RaspberryPi/Python/DFRobot-ADS1115.py and /DFRobot_ADS1115/RaspberryPi/Python/ADS1115_ReadVoltage/ADS1115_ReadVoltage.py

Thanks for any tips for how to make this work.

DFRobot_ADS1115.zip

[bakami 0]

Ah nvm, i found the error, somehow the script only works if the onboard switch is set to adress 0x48 instead of 0x49

[yi-hsin_hung 3]

Hi @bakami:

     Maybe you can check the contents of slave address 0x49 device by the following command to dump information. Thank a lot!

sudo i2cdump -y 1 0x49