Hello. what code to the remote control button. I would like to remotely control another board from the phone. For example, if I press the button, the relay switches on another wemos. I need a code.
I found such a thing but I do not know how to apply it in the code.
The syntax you have just reads the value of a pin as per https://blynkapi.docs.apiary.io/#reference/0/get-pin-value/get-pin-value
If you want to change the value use https://blynkapi.docs.apiary.io/#reference/0/write-pin-value-via-get/write-pin-value-via-get
how to use it in the code?
With the super powerful Webhook widget.
Can you send me a code? Thanks in advance
Keep studying this until you can make it work in a web browser, then repeat for Webhook widget,
How to control the relay via http (push button)?
I used it but it does not work.
https://blynkapi.docs.apiary.io/#
Paste the dozens of url’s you tried in a browser and the actual GPIO numbers you want to control.
Presumably you are using Blynk’s cloud server.
Which GPIO pin is the relay connected to and do you know the difference between a GPIO number and the labels printed on the ESP development boards?
What message do you see in the browser with the url you are using?
Most relays are active LOW, should you be sending a 0 to switch the relay ON?
@tomixps please stop demanding others to write code for you. It is against forum rules (and you may get banned soon).
Ok I did not know
You clearly haven’t been following my reign of terror 