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Thanks, it's ok if it detect 22v.
We are just collecting feedback, and most of time it should give 24v ,as input is 24v
1695413117
Please share connection how to use octocoupler? The one i shared is just to put my thought.
Keeping budget aside, I should go with first one i.e. using voltage sensor is best and most accurate, right?
1695388861
@stenzer I shall modify resisters in last option i mentioned, that i got from some where, at actual i shall use R1-14000 ohm and R2-2000
How to measure 24v DC in ESP32?
1) using voltage sensor.
2) Using Optocoupler Isolation
3) Using voltage divider resisters
Which is most efficient to detect 24v dc?
Hello,
I am operating motorized ball valve using ESP32 and relay module, ball valve has two feedback voltage to detect close and open position of valve, there are two output wires one to detect close state and one to detect open state of valve. see below image.
My question is how to collect...
Hello All,
I am working on IOT based Smart Irrigation project.
In first phase I shall work on controlling water pump, right now my 7.5hp motor is controlled by "3 phase star delta starter".
Could you please provide/point to web source for following queries?
1) Three phase motor don't have...
Hello,
Sorry 1) if this is wrong place 2) Dumb question.
I am working on smart irrigation project, I have Arduino connected with 4 sensors and 1 actuator, Arduino collect data and send to ESP32 using Reyax RYLR896 Lora Module connected to it.
I keep all PCBs in one waterproof box, but this...
Its not problem of logic, i have printed state of pin and for pin 16 it always print 0 i.e. low
// put your main code here, to run repeatedly:
Serial.printf("\n \n \n On button state :");
Serial.print(digitalRead(pinPButtonLedOn));
Serial.printf("\n \n \n Off button state :")...
Once we give low input to pin 16 of NodeMCU ESP8266, it remains low, see my code below which is not able to switch off led because of this issue, can't we use pin 16 as general purpose input?
See my complete code
#include <Arduino.h>
#define ENABLE_DEBUG
#ifdef ENABLE_DEBUG
#define...
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