add yfd50 pararameter

[raniereee]

Description

Add the calibratrion parameter for YFD50 sensor.

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

Test Configuration:

• Firmware version :
• IDE : Arduino 1.18.19
• Hardware : ESP32 Dev Module
• SDK :

[raniereee]

Just calibration parameter for sensor YFD50.

[raniereee]

Just calibration parameter for YFD50 water flow sensor.

[hafidhh]

Do you mean the yf-dn50 sensor?

[raniereee]

Yes. You are right.

[hafidhh]

i see on data sheet Q = 200L/m and frequency = 0.2*Q
Frequency

$$Frequency (hz) = 0.2 * Q$$ $$Frequency (hz) = 0.2 * 200$$ $$Frequency (hz) = 40$$

Pulse/Liter

$$Q = {Frequency \over Pulse/Liter}60$$ $$Q * Pulse/Liter = Frequency * 60$$ $$Pulse/Liter = {Frequency \over Q}60$$ $$Pulse/Liter = {40 \over 200}60$$ $$Pulse/Liter = 12$$

Can you explain how to get 20?
Did you get 20 from data sheet?