Search found 2 matches

by macdaddymays
Wed Jun 10, 2020 9:26 pm
Forum: Hardware
Topic: ESP32 powering a solenoid
Replies: 12
Views: 12338

Re: ESP32 powering a solenoid

The 1k resistor mentioned at some point to go between the GPIO output of your ESP and the base of the 2N2222 should be used between the GPIO output of your ESP and the gate of the MOSFET. This will limit the inrush current attempting to flow out the GPIO output into the gate of your MOSFET to establ...
by macdaddymays
Tue Jun 09, 2020 6:47 pm
Forum: Hardware
Topic: PCB design external power supply ESP32 tracktor
Replies: 6
Views: 5942

Re: PCB design external power supply ESP32 tracktor

D1 and D2 should be removed and shorted out. Leaving those diodes will likely cause instability in the output of the linear regulators.