LQI explained

LQI stands for Link Quality Indicator, and shows the signal strength with which two nodes see each other.

It is displayed in the format of "A->B/B->A". End nodes always see its router as 0.

Given the environment presented in the screenshot above, we can read the following:

• "Luce" see "Humidity 5" with an LQI of 196.
• "Configuration tool 1" see "Luce" with an LQI of 49.
• "Humidity 5" is an end device and thus see Luce as 0.
• "Luce" see "Configuration tool 1" with an LQI of 58.

LQI value meanings:

• 255 excellent
• - 200 good
• 130 flaky but can work
• - < 100 problematic