Track Water Usage with a Flow Sensor & NodeMCU
ฝัง
- เผยแพร่เมื่อ 30 ก.ย. 2020
- Tracking water usage with an FL-608 water sensor, NodeMCU ESP8266 board and persisting it to an Autonomous DB in the cloud via a Node backend.
Bonus: this entire project can be run with "always free" resources in the Oracle Cloud.
Learn more:
blogs.oracle.com/developers/t...
Code:
github.com/recursivecodes/wat... - วิทยาศาสตร์และเทคโนโลยี
How does it work when the GPIO input of the esp only has 3.3V max. It will. Damages esp quickly
calculation is not constant: outcome differs (for same volume) depending on fast or slow rate.
Do you mean it varies depending on water velocity?
@@kidukkuppudi9338 Yes/no: you would think that is is just a matter of 'counted pulses' divided by 'pulses per liter', but at a slow rate a liter will give less pulses. So more calculation is needed.
@@wrnrt do you have any method to calculate volume irrespective of flow rate?
@@kidukkuppudi9338 No. There is a name for the non-linair progression it makes but I cannot find my notes about it.
@@wrnrt Do you have any suggestions or ideas to improve the accuracy irrespective of flow rate?