Hi, Jetson nano’s I2C dose not connect the ADS1115.
When I use the ‘i2cdetect -r -y 0’, it is Ok but library of ADS1115 is not operating.
I get error messages that " Could not determine default I2C bus for platform."
so i change the address to 0x40 bus failed and i get another error.
Help me.
Thanks.
library is here “https://github.com/adafruit/Adafruit_Python_ADS1x15” (simplytest.py)
Can i2cget/i2cset utils worked?
Hi, @ShaneCCC. Thank your answer.
i2cget/i2cset is not worked.
i2cdetect -l don’t show ADS device.
ADS device is okay. i tried on arduino.
Are you using I2C on 40-pin header? Please refer to the 40-pin docs in DLC first:
Hi, @Trumany !
this file is not downloaded with “File Not Found or Link has Expired”.
Please search “40-pin” in DLC.
Thanks! @Trumany
You mean change the AR and AS of I2C(SDA and SCL). Is right?
There are two I2C ports on the 40-pin header, I2C0 and I2C1. Both are 3.3v voltage level. You should check your device to make sure which I2C is attached to and what the voltage level is.
I checked this document but no problem
I tried PCA8695. this module is available through I2C.
ADS1115 has pull up. Is this problem? (because i2c has pull up too.)
What’s the pull-up voltage level? There is 3.3v pull-up inside the module. Did you use a oscilloscope to observe the waveform of I2C data/clk to make sure the communication is correct?
@Trumany
Yes, i can get the waveform of I2C data/clk.
pull-up of ADS1115 is 3.3v (PCA9685 is 3.3v too.)
I2C works very Well. (i tried PCA 9685)
There is problem using ADS1115. (I tried ADS1115 on arduino, no prolem.)
Thanks a lot!
I solved!
Good news, can you tell how you solve it?
