Electrical Engineering

A place to ask questions, discuss topics and share projects related to Electrical Engineering.

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Planning my first PCB, which connects an ESP32 dev board to a HUB75 matrix and rotary encoder with a 5VDC barrel jack for power. Wondering if anything looks wildly stupid or if I'm doing things correctly.

Posted 3rd May 2026u/Pawtang

I'm stuck on this circuit problem

Posted 2nd May 2026u/Basic-Ad4402

I Designed an Open-Source Dual Brushed DC Motor Driver around the RP2350 (4–40V, 6A Peak)

Posted 1st May 2026u/milosrasic98

Understanding the 741 op amp

Posted 1st May 2026u/Dangerous_Page_8693

PSA: Falstad is a thing that exist

Posted 1st May 2026u/Affectionate-You-570

Wizard Anechoic Chamber Stuff

Posted 1st May 2026u/Backcountry-Skiier

Is this arrangement correct?

Posted 1st May 2026u/fredallenburge1

Laplace circuit analysis

Posted 1st May 2026u/Salt_Palpitation2507

If the diode connected to 0V were germanium, what would Vo be and why?

Posted 30th Apr 2026u/Wild-Cat-8240

I made Lemo pin probes and it’s changing my life!

Posted 30th Apr 2026u/LazaroFilm

Hands Free Probes

Posted 30th Apr 2026u/Negative-Plantain443

Self-Stabilizing Platform

Posted 30th Apr 2026u/Ismailsan

Driving a speaker

Posted 30th Apr 2026u/Gullible_Truck_5585

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