Compatability between two I2C sensors

Using Arduino Sensors
1

I have two sensors (kinda 6) I'm trying to connect to an Ardiuno. I have four sensors connected to an Atlas Scientific Tentacle shield and two Blue Robotics sensors connected via SDA and SCL. I'm currently using an Ardiuno Uno however this issue persists when using an Ardiuno Mega. The issue is that when my Atlas Scientific Shield is in I2C mode, and my Blue Robotic sensors are connected, my Atlas Scientific sensors do not output data. Also, I cannot use UART mode because of compatibility with another module. They simply say "error: no data". The Blue Robotics sensors don't even have to be running to cause the issue, so long as their wires are connected to SDA and SCL it'll error my other sensors. I've emailed both Atlas Scientific and Blue Robotics about this and they both say it's an issue with the other companies product and refuse to help me. The code I'm using is the sample code Atlas Scientific provides which can be found here.

Image:
https://drive.google.com/file/d/1ElRsktrn6I4Np0hXJiauP1ymBy5eI9hn/view

2

I cannot open your image so this is a guess. It sounds like you have at least two masters connected together, that is a big no-no. This will cause a lot of errors on the I2C buss. It will probably cause over current in one or both masters when they are driving different logic levels. This response is to help you get started in solving your problem, not solve it for you.
Good Luck & Have Fun!
Gil

3

I don't see where OP would be using multiple masters at the same time, and anyway, I2C can handle multi master setups.

Google drive image can't be accessed. You have to provide links to the actual sensors used, post your actual code (smallest possible sketch that shows the problem), and how you have wired it all.

My best guess: no unique I2C slave addresses.