Raspberry Pi - Web Server and API
You want to display the average sensor value over the last 5 readings on a Raspberry Pi dashboard. Which approach is best?
You want to display the average sensor value over the last 5 readings on a Raspberry Pi dashboard. Which approach is best?
hard📝 Scenario Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand averaging over recent readings
To average last 5 readings, you must store them in a list or buffer.Step 2: Evaluate options for updating average
Calculating once or using only latest reading ignores new data; printing without storing can't average.Final Answer:
Store last 5 readings in a list, then calculate average each update -> Option DQuick Check:
Rolling average needs stored recent data [OK]
Quick Trick: Keep recent readings in a list to compute rolling average [OK]
Common Mistakes:
MISTAKES- Calculating average only once
- Using single reading as average
- Not storing readings for averaging
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