Multiple Qwiic connected LSM6DSO sensors

Qwiic System
1

Hi, I’m a bit new to the Qwiic system so I’ve been scrolling throug tutorials for a while, but I seem to fail to find any example where two devices of the same type are serially connected by their qwiic ports. How would I specify in my Arduino code which unit is which?

In the example code the constructor LSM6DSO are used, but not connected to any port or anything. Therefore I do not know how I would add a second sensor object and be sure it’s connected to the second physical sensor.

Thank you for your attention.

2

The two devices will need to have two different I2C addresses. Some can be changed via software, others like the LSM6DSO need to have a jumper changed to change the address. There are also some devices that cannot have their address changed at all. For the LSM6DSO see the Jumper Pins section in the [Hookup Guide to see how to change the I2C address.

For the software, you need a 2nd variable of the same type and you have to specify the address in one (or both) when they are initialized (begin() call)

LSM6DSO dev1;
LSM6DSO dev2;
...
void setup() {
  ...
  if (dev1.begin())  // Default address of 0x6B
    Serial.println("dev1 ready");
  }
  if (dev2.begin(0x6A)) // Must be jumpered to use alternate address
    Serial.println("dev2 ready");
  }
  ...

](Qwiic 6DoF (LSM6DSO) Breakout Hookup Guide - SparkFun Learn)