Systematic-LEDs
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LED stuttering/glitching
I'm running 300 LED's on a 30A power supply (Though the same problem occurred on 150 LED's) on a ESP-12F over DMA. The controlling computer is an recent i7 so there's plenty of processing power on that end. Every so often all the LED's will freeze or behave very slowly for around a second or so and then resume. Here's a video showing what I mean. It appears to happen on every effect.
https://www.youtube.com/watch?v=QUVJgAYLXdQ
Are your esps connecting to the computer using the mobile hotspot?
I have the same problem, but for it is freezing sometimes and sometimes I need to reboot the arduino