INSA/gaz-sensor
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@ -4,3 +4,11 @@ RN2483 1.0.5 Oct 31 2018 15:06:52
DO NOT FORGET TO RESET THE RN2483 BY PULLING THE RST PIN !
# UF Smart Devices : Partie Analogique
Impédence du capteur de gaz : plusieurs gigaohms -> il faut donc amplifier le signal.
En amplifiant on amplifie aussie le buit ! Il faut donc filtrer :
1. Filtrer le bruit hf de mesure
2. Fitlrer le bruit 50Hz
3. Filtrer l'échantillonnage de l'ADC