So I’m designing a pcb with mostly smd components and I need help verifying it. This will only be my second pcb and my first with smd components. The goal of this pcb is to power 3 servos, 1 rgb led, 1 teensy 4.1, 3 pyro channels, 2 imus, 1 barometer, and 1 buzzer.

The buzzer takes in 20ma and the teensy 4.1 pins can handle 250ma max rating.

[image] JRD_Propulsion: teensy 4.1 pins can handle 250ma max rating Show us where an output pin on the teensy can handel 1/4 Amp

I was wrong. Apparently each gpio pin can do 10 ma and 3.3v can do 250ma. I guess I can put a resistor there to ensure it never goes above 20ma. Also, what do you think about my 5v buck circuit? Any issues there?

How much of the schematic have you actually tested to show that it actually works ? I design PCBs, and I will add bits to a design that I know will work. If there is some component or device in the schematic that is new to me or I am not sure about, I breadbord test it myself first, is that not the normal 'design' process ?

Ive only tested the on and off switch on my old pcb(not very useful) However, I have two teensy 4.1 on the way so i will test the mpu6050 schematic as well as pyro channels.

I cant really test the smd stuff tho

Why not ? You can get breakout PCBs that allow you to breadboard most SMT stuff.

I could do that but it would take a lot off time

But actually thats a great idea, I will do that

you are talking about these right? Overview | SMT Breadboard Prototyping Using Breakout PCBs | Adafruit Learning System

Looking for someone to check my schematic

Projects General Guidance

LarryD January 17, 2023, 7:19pm 55

Ebay has reasonable prices but takes 2-3 weeks.

See these links:

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Looking for someone to check my schematic

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