SKU-0257 Gravity water pressure sensor coding
AnbarasuShanmugam 2022-06-09 15:26:40 425 Views1 Replies V = analogRead(0) * 5.00 / 1024; //Sensor output voltage
P = (V - OffSet) * 250; //Calculate water pressure
Can anyone tell me what is that 250 value defines in this coding??
2022-06-12 16:46:31 
Youyou
The relation between voltage and pressure is shown in the picture:
https://dfimg.dfrobot.com/nobody/wiki/523137dc6f50feb019b55f25f80cb4df.png
The pressure and voltage are linear. The offset value is about 0.5V. So the slope is 1000(kpa)/4(V) = 250.
Youyou 
