ESP32 with Blynk 2.0 facing problem to drive high power 3W led in parallel

[PeteKnight]

@Saimoon24

   // Uncomment your board, or configure a custom board in Settings.h
   //#define USE_WROVER_BOARD
   //#define USE_TTGO_T7
   //#define USE_ESP32C3_DEV_MODULE
   //#define USE_ESP32S2_DEV_KIT

I’d always suggest that you un-comment one of the board types and check that you are aware which pins are being used by Edgent in Settings.h, and probably add those to this list as comments so that you can see your pin usage in one place…

@Saimoon24

   int ledPin1 = 16; //White "RX2"
   int ledPin2 = 13; //Royal Blue "D13"
   int ledPin3 = 18; //Blue "D18"
   int ledPin4 = 19; //Purple D19
   int ledPin5 = 32; //UV "D32" 
   int ledPin6 = 21; //Cyan "D21"
   int ledPin7 = 22; //Green "D22"
   int ledPin8 = 23; //Red "D23"
   int ledPin9 = 26; //Master "D26"
   int ledPin10 = 25; //Fan "D25"

More info on that here…

Troubleshooting Edgent Dynamic Provisioning Problems

There seems to quite a bit of confusion about how the dynamic provisioning process works in the Edgent sketch examples, and how to re-provision a device with new WiFi credentials. Many people omit to configure the board type correctly in the sketch, and this also causes problems. Here’s a guide to how the process works, and the things to watch out for… Overview You start by creating a template, preferably in the web console (https://blynk.cloud/) This gives you the BLYNK_TEMPLATE_ID and BLYNK…

@Saimoon24

I used Min 0 - Max 160 to get 3.6V maximum

You won’t get full brightness unless you use 255 as your maximum with 8 bit resolution. Also, it’s duty cycle not voltage that you’re measuring, so unless you have an oscilloscope available you won’t be able to take any sensible measurements.

I’m not clear why the logic level converter is required, what the specification of your LEDs are. Generally speaking, you would design your circuit so that you feed your MOSFETs with the desired output voltage for the LEDs, then drive the MOSFETs so that the full voltage is delivered when the maximum duty cycle is applied.
Your flickering is probably also caused by your circuit design.

Pete.