Raspberry Pi - SPI Communication
How can you modify the read_adc function to ignore readings below a threshold (e.g., 100) and return None instead, to filter out noise?
How can you modify the read_adc function to ignore readings below a threshold (e.g., 100) and return None instead, to filter out noise?
hard🚀 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand filtering low ADC values
To filter noise, check if ADC value is below threshold and return None to indicate invalid reading.Step 2: Implement conditional return in function
Add if data < 100: return None else: return data to skip low noisy values.Final Answer:
Add an if statement: if data < 100: return None else: return data -> Option DQuick Check:
Filter noise by conditional return None [OK]
Quick Trick: Use if-else to return None for low ADC values [OK]
Common Mistakes:
MISTAKES- Not filtering low values
- Returning 0 instead of None
- Raising error unnecessarily
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