Driving 4 LRAs with DRV2605L and ESP32, Power concerns

[dunnisintrouble]

Hi.

I am working on a class project requiring me to drive 4 LRAs. The LRAs will not be vibrating simultaneously and they vibrate for milliseconds at a time. The final project is meant to be extremely clean looking and "integrated" , so I don't want to make use of any breakout boards.

My approach is to consolidate all of this into one PCB breakout with an esp32 and i2c multiplexing. However, I'm concerned about the power output. Will the ESP32 be able to provide enough current through a single 3V3 pin so long as the LRAs are not vibrating together? Or should I take the time, but potentially cause delays to the assignment by figuring out an external power supply for both the esp32 and the other components. The ESP32 I am making use of currently will be powered with a LIPO battery.

Here are the specs of the LRA:
Resistance : 6-7.5 Ohms
Rated Current : 350 mA

The ESP32 I am using is a knockoff of the LOLIN 32, but I cannot find the datasheet easily

Here is the Schematic:

Please feel free to point out anything you see on the schematic that could also be concerning! Thank you

[Railroader]

No controller should be used as power supply.

[dunnisintrouble]

Hi, thanks for your response!

I'm somewhat new to all this, but I'm hoping to learn alot from this project. Why shouldn't the controller be used as power supply? Is it bad practice? I see a lot of diy electronics projects use the 3v3 or 5v pin to provide power to other components on breadboards and stuff

Thanks again!

[Railroader]

The specifications tell what the boards are designed for. The tiny voltage converters get overloaded and can get damaged, The conducting strips will cause voltage drops and sometimes burn off.
Loads like a few LEDs can be powered, low current circuits but not motors and the 350 mA things You tell about.