How to control fan with Blynk?

[Gunner]

1. NOT directly (even if it is a low current fan), use a transistor/mosfet circuit (Google for that)

2. See #1

3. Most likely PWM will work with the proper circuit. But for that in the ESP32 you need to use some different code as the ESP32 Arduino Core doesn’t support analogWrite() yet. Check out this link for a bit more info…

C++ Blynk (Legacy) - Code Examples for Basic Tasks

#14 - ESP32 - Alternate way to control PWM pins for Servos and/or LEDs At the time of this posting, the ESP32 Arduino Core does not support the handy analogWrite() command. So how do we do the PWM dodo we want to do? Well, a little G gling later and I found a few different websites that describe in more detail then I will get into here. How profoundly customisable the ESP32 GPIO pins are First you need this library… https://github.com/espressif/arduino-esp32/blob/a4305284d…