Liquid Flow Sensor, Turbine Meter wiring with ESP8266Chao
Thanks to customer Mark, here is wiring diagram of the flow sensor/meter with esp8266, the key point is needing a 555 timer chip as a Schmitt trigger.
Also the VCC voltage of flow sensor is 5V, and esp8266 is 3v3, a voltage divider is needed in the circuit.
You can find the flow sensor here.
Updated to use a CMOS version of the 555 timer that doesn’t suck massive power like the old LM555.
Thanks for this! I have the flow sensor and it has made my auto garden watering device much more reliable!
Thanks i need code for the esp8266
That is a money making idea.
Thank you, good idea for water pump…